539 Part 770—Interpretations
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1 Abietic Acid R Abrasive Silica for Polishing DR Acenaphthene M (LC
1 abietic acid R abrasive silica for polishing DR acenaphthene M (LC) acenaphthene quinone R acenaphthylene R acetal (see 1,1-diethoxyethane) acetaldehyde M (FC) acetaldehyde-d (CH3CDO) R acetaldehyde dimethyl acetal CH acetaldoxime R acetamide M (LC) acetamidinium chloride R acetamidoacrylic acid 2- NB acetamidobenzaldehyde p- R acetamidobenzenesulfonyl chloride 4- R acetamidodeoxythioglucopyranose triacetate 2- -2- -1- -β-D- 3,4,6- AB acetamidomethylthiazole 2- -4- PB acetanilide M (LC) acetazolamide R acetdimethylamide see dimethylacetamide, N,N- acethydrazide R acetic acid M (solv) acetic anhydride M (FC) acetmethylamide see methylacetamide, N- acetoacetamide R acetoacetanilide R acetoacetic acid, lithium salt R acetobromoglucose -α-D- NB acetohydroxamic acid R acetoin R acetol (hydroxyacetone) R acetonaphthalide (α)R acetone M (solv) acetone ,A.R. M (solv) acetone-d6 RM acetone cyanohydrin R acetonedicarboxylic acid ,dimethyl ester R acetonedicarboxylic acid -1,3- R acetone dimethyl acetal see dimethoxypropane 2,2- acetonitrile M (solv) acetonitrile-d3 RM acetonylacetone see hexanedione 2,5- acetonylbenzylhydroxycoumarin (3-(α- -4- R acetophenone M (LC) acetophenone oxime R acetophenone trimethylsilyl enol ether see phenyltrimethylsilyl... acetoxyacetone (oxopropyl acetate 2-) R acetoxybenzoic acid 4- DS acetoxynaphthoic acid 6- -2- R 2 acetylacetaldehyde dimethylacetal R acetylacetone (pentanedione -2,4-) M (C) acetylbenzonitrile p- R acetylbiphenyl 4- see phenylacetophenone, p- acetyl bromide M (FC) acetylbromothiophene 2- -5- -
Pacs by Chemical Name (Mg/M3) (Pdf)
Table 4: Protective Action Criteria (PAC) Rev 25 based on applicable 60-minute AEGLs, ERPGs, or TEELs. Values are presented in mg/m3. August 2009 Table 4 is an alphabetical listing of the chemicals in the PAC data set. It provides Chemical Abstract Service Registry Numbers (CASRNs)1, PAC values, and technical information on the source of the PAC values. Table 4 presents all values for TEEL-0, PAC-1, PAC-2, and PAC-3 in mg/m3. The conversion of ppm to mg/m3 is calculated assuming 25 ºC and 760 mm Hg. The columns presented in Table 4 provide the following information: Heading Definition No. The ordered numbering of the chemicals as they appear in this alphabetical listing. Chemical Name The chemical name given to the PAC Development Team. CASRN The Chemical Abstract Service Registry Number for this chemical. TEEL-0 This is the threshold concentration below which most people will experience no adverse health effects. This PAC is always based on TEEL-0 because AEGL-0 or ERPG-0 values do not exist. PAC-1 Based on the applicable AEGL-1, ERPG-1, or TEEL-1 value. PAC-2 Based on the applicable AEGL-2, ERPG-2, or TEEL-2 value. PAC-3 Based on the applicable AEGL-3, ERPG-3, or TEEL-3 value. Source of PACs: Technical comments provided by the PAC development team that TEEL-0, PAC-1, indicate the source of the data used to derive PAC values. Future efforts PAC-2, PAC-3 are directed at reviewing, revising, and enhancing this information. -
An Efficient, Heterogeneous and Green Catalyst for Organic Synthesis
Available online www.jocpr.com Journal of Chemical and Pharmaceutical Research, 2012, 4(2):991-1015 ISSN : 0975-7384 Review Article CODEN(USA) : JCPRC5 Montmorillonite: An efficient, heterogeneous and green catalyst for organic synthesis Navjeet Kaur and Dharma Kishore Department of Chemistry, Banasthali University, Banasthali (Rajasthan), India ______________________________________________________________________________ ABSTRACT Reactions of organic molecules on Montmorillonite clay mineral have been investigated from various aspects. These include catalytic reactions for organic synthesis, chemical evolution, the mechanism of humus-formation, and environmental problems. Catalysis by clay minerals has attracted much interest recently, and many reports including the catalysis by synthetic or modified clays have been published. In this review, we will limit the review to organic reactions using Montmorillonite clay as catalyst. Keywords: Montmorillonite, catalysis, clay, organic synthesis, green chemistry. ______________________________________________________________________________ INTRODUCTION One of the major current challenges before chemists is to develop synthetic methods that are less polluting, i.e., to design clean or 'green' chemical transformations. The chemical manufacturing processes should be such that they do not cause permanent damage to the environment or disturb the ecological balance. Ways to minimize the consumption of energy and raw materials used in synthesis must be devised so that optimal value of resources could be realized. Thereby environmentally benign products are obtained at affordable costs. Such a concept, though not new, has received enormous attention in recent times. The desire to make chemical manufacturing environmental friendly is not a new one. Such awareness was there even among the nineteenth century chemists, industrialists and lawmakers. The problem has become more acute in recent times and has received wider attention because of our better understanding of the causes of environmental degradation. -
Rearrangement of Allylic Alcohols Herbert Barbehenn
Rochester Institute of Technology RIT Scholar Works Theses Thesis/Dissertation Collections 1-1-1971 Rearrangement of allylic alcohols Herbert Barbehenn Follow this and additional works at: http://scholarworks.rit.edu/theses Recommended Citation Barbehenn, Herbert, "Rearrangement of allylic alcohols" (1971). Thesis. Rochester Institute of Technology. Accessed from This Thesis is brought to you for free and open access by the Thesis/Dissertation Collections at RIT Scholar Works. It has been accepted for inclusion in Theses by an authorized administrator of RIT Scholar Works. For more information, please contact [email protected]. REARRANGEMENT OF ALLYLIC ALCOHOLS HERBERT S. BARBEHENN JANUARY, 1971 THESIS SUBMITTED IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF MASTER OF SCIENCE APPROVED: Dr. Jerry Adduci Project Adviser Department Head Library Rochester Institute of Technology Rochester, New York To Rath, my wife - - - for the many lonely nights, for the many unfinished chores and for being herself. Acknowledgements Grateful appreciation is tendered to the many faculty members with whom it has been my pleasure to be associated with during the past eleven years at Rochester Institute of Technology. Special thanks are expressed to Dr. Jerry Adduci for his guidance and patience in seeing this endeavor to its conclusion. While it may have taken a little longer than the norm, much of the credit for this thesis must be ascribed to his dedication to complete and conclusive research. I also wish to thank Dr. Earl Krakower for the many nuclear magnetic resonance spectra he so graciously completed in the course of elucidating the many structures formed and to Dr. -
318 the Chemistry of 3-Nitrochromenes
318 T HE CHEMISTRY OF 3 - NITROCHROMENES DOI: http://dx.medra.org/ 10.17374/targets.2019.22.318 Robby Vroemans , Wim Dehaen* Molecular Design and Synthesis, Depa rtment of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium (e - mail : [email protected] ) Abstract. A large variety of natural products and medicinal drugs have chromene and chromane core s incorporated in their structures . Because of their high and versatile reactivity , and simple synthesis , 3 - nitrochromenes are regarded as an easily available and highly functional constituent for the preparation of chromene and chromane derivatives . In the present review , t he synthesis of the 3 - nitr ochromene scaffold is briefly discussed . The multifaceted reactivity of 3 - nitrochromenes is highlighted and divided in to different subject s in which emphasis is mainly placed on recent advances in literature from 2013 up until now . Contents 1. Introduction 2. Synthesis of 3 - nitrochromenes 3. Reactivity of 3 - n itrochromenes 3 .1. Oxidations 3 .2. Reductions 3 .3. Conjugate additions 3.4. Cycloaddition reactions 4. Conclusion s Acknowledgement References 1. Introduction Chromenes (2 H - benzo[ b ]pyrans) have been of considerable interest for a long period of time and remain omnipresent in various fields such as medicinal chemistry and natural products . 1 - 4 Characterization of natural products proved that chromenes are common patterns in many biological systems . 3 Some important examples of naturally occurring chromenes and chromanes are α - tocopherol (one out of eight compounds featuring vitamin E activity) , 5 - 8 tetrahydrocannabinol (THC) , 9 - 12 a rahypin - 5, 13,14 c alanone 15 and s eselin 16 (Figure 1). -
448 Part 770—Interpretations
§ 770.1 15 CFR Ch. VII (1±1±97 Edition) (vii) Evidence that the parts and compo- SUPPLEMENT NO. 2 TO PART 768ÐITEMS nents of the item are of foreign origin or are ELIGIBLE FOR EXPEDITED LICENSING exempt from U.S. licensing requirements by PROCEDURES [RESERVED] the parts and components provision § 732.4 of the EAR. (3) Sufficient quantity: PART 770ÐINTERPRETATIONS (i) Evidence that foreign sources have the item in serial production; Sec. (ii) Evidence that the item or its product is 770.1 Introduction. used in civilian applications in foreign coun- 770.2 Commodity interpretations. tries; 770.3 Interpretations related to exports of (iii) Evidence that a foreign country is technology and software to destinations marketing in the specific country an item of in Country Group D:1. its indigenous manufacture; 770.4 Interpretations related to chemical (iv) Evidence of foreign inventories of the mixturesÐde minimis exceptions exam- item; ples. (v) Evidence of excess capacity in a foreign AUTHORITY: 50 U.S.C. app. 2401 et seq.; 50 country's production facility; U.S.C. 1701 et seq.; E.O. 12924, 3 CFR, 1994 (vi) Evidence that foreign countries have Comp., p. 917; Notice of August 15, 1995 (60 FR not targeted the item or are not seeking to 42767, August 17, 1995). purchase it in the West; SOURCE: 61 FR 12920, Mar. 25, 19 unless oth- (vii) An estimate by a knowledgeable erwise noted. source of the foreign country's needs; or (viii) An authoritative analysis of the § 770.1 Introduction. worldwide market (i.e., demand, production rate for the item for various manufacturers, In this part, references to the EAR plant capacities, installed tooling, monthly are references to 15 CFR chapter VII, production rates, orders, sales and cumu- subchapter C. -
Export Controlled Chemicals, Including Mixtures and Compounds
Export Controlled Chemicals, including mixtures and compounds **ALL High Explosives and their Precursors Are Export Controlled** Note that mixtures in which at least one of the chemicals listed below constitutes 30 percent or more of the weight of the mixture are also controlled. - 1,1-Diethylhydrazine nitrate (DEHN)/ 1,2-Diethylhydrazine nitrate (DEHN) (CAS 363453- 17-2) - 1,1-Dimethylhydrazinium azide (CAS 227955-52-4)/ - 1,2-Dimethylhydrazinium azide (CAS 299177-50-7) - 2 Nitrodiphenylamine (2-NDPA) - 2-Chloroethanol (CAS 107-07-3) - 2-hydroxyethylhydrazine nitrate (HEHN) - 3-Hydroxyl-1-methylpiperidine (CAS 3554-74-3) - 3-Quinuclidinol (CAS 1619-34-7) - 3-Quinuclidone (CAS 3731-38-2) - 3,6-dihydrazino tetrazine nitrate (DHTN), also referred to as 1,4-dihydrazine nitrate. - Allylhydrazine (CAS 7422-78-8) - Ammonium hydrogen fluoride (CAS 1341-49-7) - Ammonium nitrate (including fertilizers) containing more than 15% by weight ammonium nitrate - Arsenic trichloride (CAS 7784-34-1) - Benzilic acid (CAS 76-93-7) - Carboxy-terminated polybutadiene (including carboxyl-terminated polybutadiene) (CTPB) - Chemicals containing a phosphorus atom to which is bonded one methyl, ethyl, or propyl (normal or iso) group but not further carbon atoms. - Chlorine trifluoride (ClF3) - Chloropicrin: Trichloronitromethane (CAS 76-06-2) - Cyanogen chloride (CAS 506-77-4) - Di-isopropylamine (CAS 108-18-9) - Diethyl chlorophosphite (CAS 589–57–1) - Diethyl ethylphosphonate (CAS 78-38-6) - Diethyl methylphosphonate (CAS 683-08-9) - Diethyl methylphosphonite -
Chemical Weapons Technology Section 4—Chemical Weapons Technology
SECTION IV CHEMICAL WEAPONS TECHNOLOGY SECTION 4—CHEMICAL WEAPONS TECHNOLOGY Scope Highlights 4.1 Chemical Material Production ........................................................II-4-8 4.2 Dissemination, Dispersion, and Weapons Testing ..........................II-4-22 • Chemical weapons (CW) are relatively inexpensive to produce. 4.3 Detection, Warning, and Identification...........................................II-4-27 • CW can affect opposing forces without damaging infrastructure. 4.4 Chemical Defense Systems ............................................................II-4-34 • CW can be psychologically devastating. • Blister agents create casualties requiring attention and inhibiting BACKGROUND force efficiency. • Defensive measures can be taken to negate the effect of CW. Chemical weapons are defined as weapons using the toxic properties of chemi- • Donning of protective gear reduces combat efficiency of troops. cal substances rather than their explosive properties to produce physical or physiologi- • Key to employment is dissemination and dispersion of agents. cal effects on an enemy. Although instances of what might be styled as chemical weapons date to antiquity, much of the lore of chemical weapons as viewed today has • CW are highly susceptible to environmental effects (temperature, its origins in World War I. During that conflict “gas” (actually an aerosol or vapor) winds). was used effectively on numerous occasions by both sides to alter the outcome of • Offensive use of CW complicates command and control and battles. A significant number of battlefield casualties were sustained. The Geneva logistics problems. Protocol, prohibiting use of chemical weapons in warfare, was signed in 1925. Sev- eral nations, the United States included, signed with a reservation forswearing only the first use of the weapons and reserved the right to retaliate in kind if chemical weapons were used against them. -
Synthesis of an Organophosphorus Analog of Acetylcholine
Illinois Wesleyan University Digital Commons @ IWU Honors Projects Chemistry 1997 Synthesis of an Organophosphorus Analog of Acetylcholine Darshan Mehta '97 Illinois Wesleyan University Follow this and additional works at: https://digitalcommons.iwu.edu/chem_honproj Part of the Chemistry Commons Recommended Citation Mehta '97, Darshan, "Synthesis of an Organophosphorus Analog of Acetylcholine" (1997). Honors Projects. 12. https://digitalcommons.iwu.edu/chem_honproj/12 This Article is protected by copyright and/or related rights. It has been brought to you by Digital Commons @ IWU with permission from the rights-holder(s). You are free to use this material in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s) directly, unless additional rights are indicated by a Creative Commons license in the record and/ or on the work itself. This material has been accepted for inclusion by faculty at Illinois Wesleyan University. For more information, please contact [email protected]. ©Copyright is owned by the author of this document. SYNTHESIS OF AN ORGANOPHOSPHORUS ANALOG OF ACETYLCHOLINE Darshan Mehta Jeffrey A. Frick, Ph.D., Faculty Advisor Thesis for Chemistry 499 and Research Honors: 1996-1997 Illinois Wesleyan University APPROVAL PAGE "Synthesis of an Organophosphorus Analog of Acetylcholine" by Darshan Mehta A PAPER SUBMITTED IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR CHEMISTRY 499 AND HONORS IN CHEMISTRY Approved, Honors Committee: J rey A. Frick, Ph.D., Research Advisor David Bollivar, Ph.D. - ABSTRACT Acetylcholinesterase (AChE) is an important enzyme in our nervous system In normal nerve function, AChE catalyzes the hydrolysis of acetylcholine (ACh) into its respective components, choline and acetate. -
Category 1—Page 1
Commerce Control List Supplement No. 1 to Part 774 Category 1—page 1 CATEGORY 1 - SPECIAL MATERIALS AND to the ITAR” (see 22 CFR parts 120 through RELATED EQUIPMENT, CHEMICALS, 130, including USML Category XXI). (2) “MICROORGANISMS,” AND “TOXINS” See also 1C009. Related Definitions: N/A Note: The Food and Drug Administration Items: (FDA) and the Drug Enforcement Administration (DEA) may control exports of items subject to the a. Seals, gaskets, sealants or fuel bladders, EAR and on the Commerce Control List. BIS “specially designed” for “aircraft” or aerospace provides cross references to these other agency use, made from more than 50% by weight of any controls for convenience only. Therefore, please of the materials controlled by 1C009.b or consult relevant FDA and DEA regulations for 1C009.c; guidance related to the item you wish to export and do not rely solely on the EAR for information b. [Reserved] about other agency export control requirements. See Supplement No. 3 to part 730 (Other U.S. Government Departments and Agencies with 1A002 “Composite” structures or laminates, Export Control Responsibilities) for as follows (see List of Items Controlled). more information. License Requirements A. “END ITEMS,” “EQUIPMENT,” Reason for Control: NS, NP, AT “ACCESSORIES,” “ATTACHMENTS,” “PARTS,” “COMPONENTS,” AND Control(s) Country Chart “SYSTEMS” (See Supp. No. 1 to part 738) 1A001 “Parts” and “components” made from NS applies to entire entry NS Column 2 fluorinated compounds, as follows (see List of NP applies to 1A002.b.1 in NP Column 1 Items Controlled). the form of tubes with an inside diameter between 75 License Requirements mm and 400 mm AT applies to entire entry AT Column 1 Reason for Control: NS, AT Reporting Requirements Country Chart Control(s) (See Supp. -
448 Part 770—Interpretations
§ 770.1 15 CFR Ch. VII (1±1±97 Edition) (vii) Evidence that the parts and compo- SUPPLEMENT NO. 2 TO PART 768ÐITEMS nents of the item are of foreign origin or are ELIGIBLE FOR EXPEDITED LICENSING exempt from U.S. licensing requirements by PROCEDURES [RESERVED] the parts and components provision § 732.4 of the EAR. (3) Sufficient quantity: PART 770ÐINTERPRETATIONS (i) Evidence that foreign sources have the item in serial production; Sec. (ii) Evidence that the item or its product is 770.1 Introduction. used in civilian applications in foreign coun- 770.2 Commodity interpretations. tries; 770.3 Interpretations related to exports of (iii) Evidence that a foreign country is technology and software to destinations marketing in the specific country an item of in Country Group D:1. its indigenous manufacture; 770.4 Interpretations related to chemical (iv) Evidence of foreign inventories of the mixturesÐde minimis exceptions exam- item; ples. (v) Evidence of excess capacity in a foreign AUTHORITY: 50 U.S.C. app. 2401 et seq.; 50 country's production facility; U.S.C. 1701 et seq.; E.O. 12924, 3 CFR, 1994 (vi) Evidence that foreign countries have Comp., p. 917; Notice of August 15, 1995 (60 FR not targeted the item or are not seeking to 42767, August 17, 1995). purchase it in the West; SOURCE: 61 FR 12920, Mar. 25, 19 unless oth- (vii) An estimate by a knowledgeable erwise noted. source of the foreign country's needs; or (viii) An authoritative analysis of the § 770.1 Introduction. worldwide market (i.e., demand, production rate for the item for various manufacturers, In this part, references to the EAR plant capacities, installed tooling, monthly are references to 15 CFR chapter VII, production rates, orders, sales and cumu- subchapter C. -
Table 4: Protective Action Criteria (PAC) Rev. 29 Based on Applicable
Table 4: Protective Action Criteria (PAC) Rev. 29a based on applicable 60-minute AEGLs, ERPGs, or TEELs. The chemicals are 3 listed in alphabetical order and the values are presented in mg/m . June 2018 Table 4 is an alphabetical list of the chemical substances and their corresponding PAC values in mass per unit volume (mg/m3). The conversion of ppm to mg/m3 was carried out assuming normal temperature and pressure, 25°C and 760 mm Hg. The columns presented in Table 4 provide the following information: Heading Definition No. The ordered numbering of the chemicals as they appear in this alphabetical listing Chemical Name The name of the chemical substance submitted to the PAC development team CASRN The Chemical Abstracts Service Registry Number1 for this chemical PAC-1 Based on the applicable AEGL-1, ERPG-1, or TEEL-1 value PAC-2 Based on the applicable AEGL-2, ERPG-2, or TEEL-2 value PAC-3 Based on the applicable AEGL-3, ERPG-3, or TEEL-3 value Chemicals for which AEGLs are available have their chemical name, CASRN, and AEGL values displayed in a bolded and larger font. Chemicals for which ERPGs are available, but not AEGLs, have their chemical name, CASRN, and ERPG values displayed in a bolded font. Chemicals for which TEELs are available, but no AEGLs or ERPGs, have their chemical name, CASRN, and values displayed using a regular font. Additional information on PAC values and TEEL values and links to other sources of information is provided on the Subcommittee on Consequence Assessment and Protective Actions (SCAPA) webpage at http://orise.orau.gov/emi/scapa/default.htm.