Augusta University High Hazard Chemicals
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Basic Aspects of Fluorine in Chemistry and Biology
Introduction: Basic Aspects of Fluorine in Chemistry and Biology COPYRIGHTED MATERIAL 1 Unique Properties of Fluorine and Their Relevance to Medicinal Chemistry and Chemical Biology Takashi Yamazaki , Takeo Taguchi , and Iwao Ojima 1.1 Fluorine - Substituent Effects on the Chemical, Physical and Pharmacological Properties of Biologically Active Compounds The natural abundance of fl uorine as fl uorite, fl uoroapatite, and cryolite is considered to be at the same level as that of nitrogen on the basis of the Clarke number of 0.03. However, only 12 organic compounds possessing this special atom have been found in nature to date (see Figure 1.1) [1] . Moreover, this number goes down to just fi ve different types of com- pounds when taking into account that eight ω - fl uorinated fatty acids are from the same plant [1] . [Note: Although it was claimed that naturally occurring fl uoroacetone was trapped as its 2,4 - dinitrohydrazone, it is very likely that this compound was fl uoroacetal- dehyde derived from fl uoroacetic acid [1] . Thus, fl uoroacetone is not included here.] In spite of such scarcity, enormous numbers of synthetic fl uorine - containing com- pounds have been widely used in a variety of fi elds because the incorporation of fl uorine atom(s) or fl uorinated group(s) often furnishes molecules with quite unique properties that cannot be attained using any other element. Two of the most notable examples in the fi eld of medicinal chemistry are 9α - fl uorohydrocortisone (an anti - infl ammatory drug) [2] and 5 - fl uorouracil (an anticancer drug) [3], discovered and developed in 1950s, in which the introduction of just a single fl uorine atom to the corresponding natural products brought about remarkable pharmacological properties. -
Hazardous Substance Fact Sheet
Right to Know Hazardous Substance Fact Sheet Common Name: DIOXOLANE Synonyms: 1,3-Dioxolan; Formal Glycol; Glycol Methylene Ether CAS Number: 646-06-0 Chemical Name: 1,3-Dioxolane RTK Substance Number: 0791 Date: February 1999 Revision: April 2008 DOT Number: UN 1166 Description and Use EMERGENCY RESPONDERS >>>> SEE BACK PAGE Dioxolane is a clear, colorless liquid with an Ether-like odor. It Hazard Summary is used in lithium batteries and as a solvent for oils, fats, waxes Hazard Rating NJDOH NFPA and dyes. HEALTH - 1 FLAMMABILITY - 3 REACTIVITY - 2 FLAMMABLE AND REACTIVE POISONOUS GASES ARE PRODUCED IN FIRE CONTAINERS MAY EXPLODE IN FIRE Hazard Rating Key: 0=minimal; 1=slight; 2=moderate; 3=serious; Reasons for Citation 4=severe f Dioxolane is on the Right to Know Hazardous Substance List because it is cited by ACGIH, DOT, and NFPA. f Dioxolane can affect you by ingestion and may be absorbed f This chemical is on the Special Health Hazard Substance through the skin. List. f Contact can irritate and burn the skin and eyes with possible eye damage. f Inhaling Dioxolane can irritate the nose and throat causing coughing and wheezing. f Exposure to Dioxolane may damage the nervous system. f Dioxolane may damage the kidneys. f Dioxolane is FLAMMABLE and REACTIVE and a SEE GLOSSARY ON PAGE 5. DANGEROUS FIRE and EXPLOSION HAZARD. FIRST AID Eye Contact f Immediately flush with large amounts of cool water for at Workplace Exposure Limits least 15 minutes, lifting upper and lower lids. Remove ACGIH: The threshold limit value (TLV) is 20 ppm averaged contact lenses, if worn, while flushing. -
A Review on Electrochemical Properties of Choline Chloride Based Eutectic Solvent in Mineral Processing
JASEM ISSN 1119 -8362 Full-text Available Online at J. Appl. Sci. Environ. Manage. August 2017 Vol. 21 (5) 991-998 www.ajol.info and All rights reserved www.bioline.org.br/ja A Review on Electrochemical Properties of Choline Chloride Based Eutectic Solvent in Mineral Processing *1OBETEN, ME; UGI, BU; ALOBI, NO Department of Chemical Sciences, Cross River University of Technology, P. M. B. 1123 Calabar - Cross River State, Nigeria. ABSTRACT: Our review highlights the most recent developments in ionic liquid (IL) chemistry where the “well-known” description of IL properties sometimes proves to be inaccurate. However, in the authors’ opinion, all these new research developments concerning ionic liquid properties serve to update knowledge on the typical physical and chemical properties of ILs, which is significant to both theoretical research and industrial applications. Therefore, rather than attempting to give a comprehensive overview of ionic liquid chemistry, the paper presents an opportunity to understand deep eutectic solvents (DES) through a more complete and accurate view . © JASEM https://dx.doi.org/10.4314/jasem.v21i5.29 Keywords : Eutectic; Solvents; Electrochemistry; Ionic Liquids; purification; Ethylene glycol. Since environmental pollution caused by chemical mixed with different hydrogen bond donors (HBDs) and energy industries has increased for several such as urea, ethylene glycol, acetamide or decades, there is high expectation from scientists and hexanediol (type IV DES). engineers to design sustainable chemical processes, to generate less harmful materials and more Owing to its low cost, biodegradability and low environmentally friendly sources of energy toxicity, ChCl was widely used as an organic salt to production. -
"Fluorine Compounds, Organic," In: Ullmann's Encyclopedia Of
Article No : a11_349 Fluorine Compounds, Organic GU¨ NTER SIEGEMUND, Hoechst Aktiengesellschaft, Frankfurt, Federal Republic of Germany WERNER SCHWERTFEGER, Hoechst Aktiengesellschaft, Frankfurt, Federal Republic of Germany ANDREW FEIRING, E. I. DuPont de Nemours & Co., Wilmington, Delaware, United States BRUCE SMART, E. I. DuPont de Nemours & Co., Wilmington, Delaware, United States FRED BEHR, Minnesota Mining and Manufacturing Company, St. Paul, Minnesota, United States HERWARD VOGEL, Minnesota Mining and Manufacturing Company, St. Paul, Minnesota, United States BLAINE MCKUSICK, E. I. DuPont de Nemours & Co., Wilmington, Delaware, United States 1. Introduction....................... 444 8. Fluorinated Carboxylic Acids and 2. Production Processes ................ 445 Fluorinated Alkanesulfonic Acids ...... 470 2.1. Substitution of Hydrogen............. 445 8.1. Fluorinated Carboxylic Acids ......... 470 2.2. Halogen – Fluorine Exchange ......... 446 8.1.1. Fluorinated Acetic Acids .............. 470 2.3. Synthesis from Fluorinated Synthons ... 447 8.1.2. Long-Chain Perfluorocarboxylic Acids .... 470 2.4. Addition of Hydrogen Fluoride to 8.1.3. Fluorinated Dicarboxylic Acids ......... 472 Unsaturated Bonds ................. 447 8.1.4. Tetrafluoroethylene – Perfluorovinyl Ether 2.5. Miscellaneous Methods .............. 447 Copolymers with Carboxylic Acid Groups . 472 2.6. Purification and Analysis ............. 447 8.2. Fluorinated Alkanesulfonic Acids ...... 472 3. Fluorinated Alkanes................. 448 8.2.1. Perfluoroalkanesulfonic Acids -
Student Number: 201477310
COPYRIGHT AND CITATION CONSIDERATIONS FOR THIS THESIS/ DISSERTATION o Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. o NonCommercial — You may not use the material for commercial purposes. o ShareAlike — If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original. How to cite this thesis Surname, Initial(s). (2012) Title of the thesis or dissertation. PhD. (Chemistry)/ M.Sc. (Physics)/ M.A. (Philosophy)/M.Com. (Finance) etc. [Unpublished]: University of Johannesburg. Retrieved from: https://ujcontent.uj.ac.za/vital/access/manager/Index?site_name=Research%20Output (Accessed: Date). Metabolomics, Physicochemical Properties and Mycotoxin Reduction of Whole Grain Ting (a Southern African fermented food) Produced via Natural and Lactic acid bacteria (LAB) fermentation A Thesis submitted to the Faculty of Science, University of Johannesburg, South Africa In partial fulfilment of the requirement for the award of a Doctoral Degree in Food Technology By OLUWAFEMI AYODEJI ADEBO STUDENT NUMBER: 201477310 Supervisor : Dr. E. Kayitesi Co-supervisor: Prof. P. B. Njobeh October 2018 EXECUTIVE SUMMARY Drought and challenges related to climate change are some of the issues facing sub-Saharan Africa countries, with dire consequences on agriculture and food security. Due to this prevailing situation, drought and climate resistant crops like sorghum (Sorghum bicolor (L) Moench) can adequately contribute to food security. The versatility and importance of sorghum is well reflected in its use as a major food source for millions of people in sub-Saharan Africa. -
US EPA, Inert (Other) Pesticide Ingredients in Pesticide Products
Inert Ingredients ordered by CAS Number Updated August 2004 CAS PREFIX NAME List No. 50-21-5 Lactic acid 4B 50-70-4 Sorbitol 4A 50-81-7 L- Ascorbic acid 4A 50-99-7 Dextrose 4A 51-03-6 Piperonyl butoxide 3 51-05-8 Procaine hydrochloride 3 51-55-8 Atropine 3 52-51-7 2- Bromo-2-nitro-propane-1,3-dio 3 54-21-7 Sodium salicylate 3 56-81-5 Glycerol (glycerin) 1,2,3 propanetriol 4A 56-86-0 L- Glutamic acid 3 56-95-1 Chlorhexidine diacetate 3 57-10-3 Hexadecanoic acid 4A 57-11-4 Stearic acid 4A 57-13-6 Urea 4A 57-48-7 D- Fructose 4B 57-50-1 Sugar 4A 57-55-6 Propylene glycol 4B 57-88-5 (3.beta.)- Cholest-5-en-3-ol 4B 58-08-2 1H- Purine-2,6-dione, 3,7-dihydro-1,3,7-trimethyl- 4B 58-56-0 Thiamine mononitrate 4B 58-85-5 Biotin 3 58-86-6 D- Xylose 4B 58-95-7 Vitamin E acetate 3 59-30-3 Folic acid 4B 59-40-5 N-(2- Quinoxalinyl)sulfanilide 3 59-67-6 Nicotinic acid 3 60-00-4 Ethylenediaminetetraacetic acid (EDTA) 4B 60-12-8 Benzeneethanol 3 60-29-7 Ethane, 1,1'-oxybis- 3 60-33-3 Linoleic acid 3 61-73-4 C.I. Basic Blue 9 3 62-33-9 Ethylenediaminetetraacetic acid (EDTA), calcium4B 62-54-4 Acetic acid, calcium salt 4A 63-42-3 D-(+)-Lactose 4A 63-68-3 L- Methionine 4B 64-02-8 Ethylenediaminetetraacetic acid (EDTA), tetraso4B 64-17-5 Ethanol 4B 64-18-6 Formic acid 3 64-19-7 Acetic acid 4B 64-86-8 Colchicine 3 65-85-0 Benzoic acid 4B 66-71-7 1,10- Phenanthroline 3 67-03-8 Thiamin hydrochloride 3 67-43-6 1,1,4,7,7- Diethylenetriaminepentaacetic acid 3 67-48-1 Choline chloride 4B 67-56-1 Methyl alcohol 3 67-63-0 2- Propanol 4B 67-64-1 Acetone 3 67-68-5 Dimethyl -
Compound 1080), Its Pharmacology and Toxicology Ernest Kun
MONOFLUOROACETIC ACID (COMPOUND 1080), ITS PHARMACOLOGY AND TOXICOLOGY ERNEST KUN. Department of Pharmacology, The University of California San Francisco. San Francisco. California 94143 ABSTRACT: The molecular mechanism of toxic action of fluoroacetate is analyzed in the perspective of scientific developments of the past 30 years. Stereospecific enzymatic conversion of fluoroacetate via fluoroacetyl-CoA + oxalacetate to (-)-erythrofluorocitrate in mitochondria is the metabolic pathway that converts the nontoxic fluoroacetate to the toxic intracellular effector molecule. The mode of toxic effect of (-)-erythrofluorocitrate cannot be equated with its reversible inhibitory effect on a mitochondrial enzyme (aconitase) as had been originally thought by Peters (1963) and is still propa~ated in textbooks. Instead, the chemical modification of inner mitochondrial membrane proteins by (-}-erythrofluorocitrate, comprising a novel, as yet incompletely understood biochemical mechanism, is the molecular basis of toxicity. Research in this new area may eventually explain selective {species dependent) toxicity, the development of resistance to this poison and can lead to the scientific basis of the development of antidotes. INTRO DU CTI ON The discovery of detailed mechanism of action of highly toxic agents inevitably reveals new areas of cellular physiology, as first pointed out by Claude Bernard (1). It is evident that if an agent in minute quantities is capable of tenninating life processes, the site of action of the toxic substance has to represent a vitally important biological system. Despite the plausibility of this axiom, only relatively few poisons have been studied in sufficient depth to allow the precise identification of their critical target systems, and their proposed mechanisms of action are frequently borrowed from concepts of a branch of biochemistry that happens to be fashionable at that time. -
EZ Speed Strip Safety Data Sheet
Date Printed: 10/14/2020 Page 1 / 6 Safety Data Sheet 1. Identification Product Name: EZ Speed Strip Revision Date: 10/14/2020 Product Identifier: 11212500 Recommended Use: Paint Remover/Strip Supplier: Emergency Telephone: Chemtrec: +1-800-424-9300 (USA) Kop-Coat Marine Group Chemtrec: +1 703-527-3887 (Intl.) 36 Pine Street 24 hrs./day, 7 days/week Rockaway, NJ, 07866, USA Poison Control: 1-800-222-1222 1-800-221-4466 (non - emergency matters) 24 Hour Hotline: 847-367-7700 2. Hazard Identification Classification Symbol(s) of Product Signal Word Danger Possible Hazards 87% of the mixture consists of ingredient(s) of unknown acute toxicity. GHS HAZARD STATEMENTS Acute Toxicity, Inhalation, category 4 H332 Harmful if inhaled. Eye Irritation, category 2A H319 Causes serious eye irritation. Flammable Liquid, category 2 H225 Highly flammable liquid and vapour. STOT, single exposure, category 3, NE H336 May cause drowsiness or dizziness. GHS LABEL PRECAUTIONARY STATEMENTS P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking. P261 Avoid breathing dust/fume/gas/mist/vapors/spray. P264 Wash hands thoroughly after handling. P271 Use only outdoors or in a well-ventilated area. P280 Wear protective gloves/protective clothing/eye protection/face protection. P303+P361+P353 IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/ shower. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. -
Enzymes Quinate Dehydrogenase
THE ABSOLUTTE STEREOCHEMICAL COUtRSE OF CITRIC ACID BIOSYNTHESIS* BY KENNETH R. HANSON AND IRWIN A. RoSEt DEPARTMENTS OF BIOCHEMISTRY OF THE CONNECTICUT AGRICULTURAL EXPERIMENT STATION AND OF YALE UNIVERSITY SCHOOL OF MEDICINE, NEW HAVEN Communicated by H. B. Vickery, September 3, 1963 In 1948 Ogston noted that when such symmetrical molecules as citric (or amino- malonic) acid are acted upon by asymmetric enzyme surfaces, pairs of identical groups may well be differentiated.1 Shortly thereafter it was shown, by using labeled substrates, that the two -CH2COOH groups of citric acid could, in fact, be distinguished.2 When citrate is formed from oxaloacetate and acetyl-CoA by citrate synthase (E.C.4.1.3.7, condensing enzyme), and is then treated with aco- nitate hydratase (E.C.4.2.1.3, aconitase) to form cis-aconitate and threo-Dr-iso- citrate, the -CH2COOH ends of these compounds are derived from acetyl-CoA, while the other atoms are derived either from oxaloacetate or water.3-6 The acetyl-CoA-derived group yields acetate when citrate is cleaved by citrate-lyase (E.C.4.1.3.6, citratase),7'8 and acetyl-CoA when citrate is attacked by the citrate cleavage enzyme.9 The nonequivalence of the two -CH2COOH groups is apparent when citric acid is represented as I (heavy line above, dotted lines below the plane of the paper). Carbon atoms 1 and 2 are to 5 and 4 as right arm is to left arm:'0 they cannot be superimposed except by reflection. The same molecule is shown in Emil Fischer projection as II (vertical lines below and horizontal lines above the plane of the paper). -
WO 2017/087640 Al 26 May 2017 (26.05.2017) P O P C T
(12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (10) International Publication Number (43) International Publication Date WO 2017/087640 Al 26 May 2017 (26.05.2017) P O P C T (51) International Patent Classification: AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, A61K 35/ 74 (2015.01) A61K 8/06 (2006.01) BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, A61K 35/66 (2015.01) A61K 8/99 (201 7.01) DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, (21) International Application Number: KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, PCT/US20 16/062480 MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, (22) International Filing Date: OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, 17 November 2016 (17.1 1.2016) SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, (25) Filing Language: English ZW. (26) Publication Language: English (84) Designated States (unless otherwise indicated, for every (30) Priority Data: kind of regional protection available): ARIPO (BW, GH, 62/257,615 1 November 2015 (19. 11.2015) US GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, (72) Inventors; and TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, (71) Applicants : BAUM, Marc M. -
Etoxadrol-Meta-Isothiocyanate: a Potent, Enantioselective, Electrophilic Affinity Ligand for the Phencyclidine-Binding Site
View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by Elsevier - Publisher Connector Volume 238, number 2, 369-374 FEB 06377 October 1988 Etoxadrol-meta-isothiocyanate: a potent, enantioselective, electrophilic affinity ligand for the phencyclidine-binding site Andrew Thurkauf, Mariena V. Mattson, Philip N. Huguenin*, Kenner C. Rice and Arthur E. Jacobson Section on Drug Design and Synthesis, Laboratory of Neuroscience, National Institute of Diabetes, Digestive and Kidney Diseases, National Institutes of Health, Bethesda, IUD 20892, USA Received 17 August 1988 Etoxadrol-mera-isothiocyanate (2S,4S,692-ethyl-2-(3-isothiocyanatophenyl)-2-pi~ridyl)1,3-dioxolane, 4n) has been synthesized and characterized as an irreversible ligand for the phencyclidine (PCP)-binding site. It is the first chiral elec- trophilic affinity ligand for this site to have been described. This affinity ligand is based upon etoxadrol, a 1,3-dioxolane known to have PCP-like effects in vivo and in vitro. Etoxadrol-meta-isothiocyanate was found to be four-five times more potent in vitro than metaphit (1-[1-(3-isothiocyanatophenyl)cyclohexyl]pi~~dine), the only previously known electro- philic affinity ligand for the PCP-binding site. The binding was shown to be highly enantioselective for etoxadrol-meta- isothiocyanate (4a). The 2R,4R,6R-enantiomer of 4a was essentially inactive. The ability of the 2S,4$69enantiomer (4a) to interact with the benzodiazepine, muscarinic, and mu opioid receptor systems was also examined, and it was found not to interact with these receptor systems. It seems likely that 4a will prove to be a valuable tool in the study of structure and function of the PCP-binding site. -
Food and Drug Administration, HHS § 172.515
Food and Drug Administration, HHS § 172.515 Common name Scientific name Limitations Sandalwood, white (yellow, or East Indian) ... Santalum album L. Sandarac ........................................................ Tetraclinis articulata (Vahl.), Mast .............................. In alcoholic beverages only Sarsaparilla ..................................................... Smilax aristolochiaefolia Mill., (Mexican sarsaparilla), S. regelii Killip et Morton (Honduras sarsaparilla), S. febrifuga Kunth (Ecuadorean sarsaparilla), or undetermined Smilax spp. (Ecuadorean or Central American sarsaparilla). Sassafras leaves ............................................ Sassafras albidum (Nutt.) Nees ................................. Safrole free Senna, Alexandria .......................................... Cassia acutifolia Delile. Serpentaria (Virginia snakeroot) .................... Aristolochia serpentaria L ........................................... In alcoholic beverages only Simaruba bark ................................................ Simaruba amara Aubl ................................................. Do. Snakeroot, Canadian (wild ginger) ................ Asarum canadense L. Spruce needles and twigs .............................. Picea glauca (Moench) Voss or P. mariana (Mill.) BSP. Storax (styrax) ................................................ Liquidambar orientalis Mill. or L. styraciflua L. Tagetes (marigold) ......................................... Tagetes patula L., T. erecta L., or T. minuta L. (T. As oil only glandulifera