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The Three Schedules

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The Three Schedules Scheduled Chemicals under the Chemical Weapons Convention (CWC) Schedule 1 Schedule 2 Schedule 3 Guidelines for Schedule 1 Guidelines for Schedule 2 Guidelines for Schedule 3 The following criteria shall be taken into account in considering whether a toxic The following criteria shall be taken into account in considering whether a toxic The following criteria shall be taken into account in considering whether a toxic chemical or precursor should be included in Schedule 1: chemical not listed in Schedule 1 or a precursor to a Schedule 1 chemical or to a chemical or precursor, not listed in other Schedules, should be included in (a) It has been developed, produced, stockpiled or used as a chemical weapon as chemical listed in Schedule 2, part A, should be included in Schedule 2: Schedule 3: defined in Article II; (a) It poses a significant risk to the object and purpose of this Convention because (a) It has been produced, stockpiled or used as a chemical weapon; (b) It poses otherwise a high risk to the object and purpose of this Convention by it possesses such lethal or incapacitating toxicity as well as other properties (b) It poses otherwise a risk to the object and purpose of this Convention because it virtue of its high potential for use in activities prohibited under this that could enable it to be used as a chemical weapon; possesses such lethal or incapacitating toxicity as well as other properties that Convention because one or more of the following conditions are met: (b) It may be used as a precursor in one of the chemical reactions at the final stage might enable it to be used as a chemical weapon; (i) It possesses a chemical structure closely related to that of other toxic of formation of a chemical listed in Schedule 1 or Schedule 2, part A; (c) It poses a risk to the object and purpose of this Convention by virtue of its chemicals listed in Schedule 1, and has, or can be expected to have, (c) It poses a significant risk to the object and purpose of this Convention by importance in the production of one or more chemicals listed in Schedule 1 or comparableproperties; virtue of its importance in the production of a chemical listed in Schedule 1 or Schedule 2, part B; (ii) It possesses such lethal or incapacitating toxicity as well as other Schedule 2, part A; (d) It may be produced in large commercial quantities for purposes not properties that would enable it to be used as a chemical weapon; (d) It is not produced in large commercial quantities for purposes not prohibited prohibited under this Convention. (iii) It may be used as a precursor in the final single technological stage of under this Convention. Schedule 3 Part A, Toxic Chemicals production of a toxic chemical listed in Schedule 1, regardless of O Schedule 2 Part A, Toxic Chemicals O + whether this stage takes place in facilities, in munitions or elsewhere; Cl N O F O- (c) It has little or no use for purposes not prohibited under this Convention. S F F Cl N P Cl Cl N Cl N C H Cl O Phosgene: Carbonyl dichloride Cyanogen chloride Hydrogen cyanide Chloropicrin: Trichloronitromethane O Schedule 1 Part A, Toxic Chemicals R4 3A(1) 3A(2) 3A(3) O F F O O 3A(4) P O R3 OH OH OR OR2 CH3 2 Including corresponding F O O Schedule 3 Part B, Precursors P R3 S N O alkylated and/or F F N N R O Cl CH3 1 R1 P N protonated salts F S Cl Cl O O C Cl Cl Amiton PFIB (R)-(-)-3-Quinuclidinyl benzilate (S)-(+)-3-Quinuclidinyl benzilate Cl R1= Me, Et, n-Pr, i-Pr Cl P Cl R1= Me, Et, n-Pr, i-Pr N O R1 P R =C -C incl. cycloalkyl 2A(1) R =C -C incl. cycloalkyl 2 1 10 2-Chloroethylchloromethylsulfide 2A(2) 2A(3)* P H3C P CH3 P 2 1 10 R2 R =Me, Et, n-Pr, i-Pr Cl e.g. Sarin, Soman 3 Cl Cl Cl Cl O O H C O O CH R =Me, Et, n-Pr, i-Pr 3 3 R1= Me, Et, n-Pr, i-Pr 4 1A(1) e.g. VX agent S Phosphorus Phosphorus trichloride Phosphorus pentachloride Trimethyl phosphite Triethyl phosphite R2= C1-C10 incl. cycloalkyl Schedule 2 Part B, Precursors Including corresponding Cl Cl O R3= Me, Et, n-Pr, i-Pr oxychloride 3B(6) 3B(7) 3B(8) 3B(9) alkylated and/or S R O e.g. Tabun Mustard gas: Bis(2-chloroethyl)sulfide X X X 3 3B(5) protonated salts 1 1 1 1A(2) X R P R1 2 P N P O 1A(3) S S R P R P P X2 N R1 O O Cl X O S X Cl Cl X3 2 1 R X X X R 4 OR O Bis(2-chloroethylthio)methane 4 2 3 2 2 H C P CH P As 3 3 N R =Me, Et, n-Pr, i-Pr R , R =Me, Et, n-Pr, i-Pr 1 2 O O H3C O O CH3 Cl S S S Cl Cl Cl Cl X - X =Any group not attached to X , X =Halogens R , R ,R ,R =Me, Et, n-Pr, i-Pr S Cl 1 4 1 2 1 2 3 4 H H S Cl Cl Cl Cl Cl Lewisite 1: 2-Chlorovinyldichloroarsine HN1: Bis(2-chloroethyl)ethylamine Cl S the phosphorus atom through a carbon Exemption: Fonofos Dimethyl phosphite Diethyl phosphite Sulfur monochloride Sulfur dichloride Thionyl chloride Cl Sesquimustard:1,2-Bis(2-chloroethylthio)ethane 2B(5) 2B(6) 2B(4) 3B(10) 3B(11) 3B(12) 3B(13) 3B(14) As N S S Cl Cl Cl Cl OH Cl Cl Lewisite 2: Bis(2-chlorovinyl)chloroarsine HN2: Bis(2-chloroethyl)methylamine 1,3-Bis(2-chloroethylthio)-n-propane H3C Cl OH HO R2 Cl HO CH3 Cl S Cl OH N Cl S N N N Cl R As 1 HO OH HO OH HO OH 1,4-Bis(2-chloroethylthio)-n-butane N N Cl Cl O Ethyldiethanolamine Methyldiethanolamine Triethanolamine As N R1, R2 = Me, Et, n-Pr, i-Pr S S Cl Cl Cl Cl Including corresponding 3B(15) 3B(16) 3B(17) Cl Cl Arsenic Trichloride 2,2-Diphenyl-2-hydroxyacetic acid (S)-(+)-3-Quinuclidinol (R)-(-)-3-Quinuclidinol protonated salts Lewisite 3: Tris(2-chlorovinyl)arsine HN3: Tris(2-chloroethyl)amine 1,5-Bis(2-chloroethylthio)-n-pentane 2B(7) 2B(8) 2B(9) 2B(10) Lewisites Nitrogen mustards S O S 1A(5) 1A(6) R Cl Cl 2 O Bis(2-chloroethylthiomethyl)ether N R1 OH OH H2N H HO R1 N N NH S S O 2 R , R =Me, Et, n-Pr, i-Pr HS R HN Cl O Cl 1 2 2 S N Including corresponding R , R =Me, Et, n-Pr, i-Pr O-Mustard: Bis(2-chloroethylthioethyl)ether 1 2 HO OH N OH protonated salts Including corresponding HN OH Exemptions: R1= R2= Me protonated salts Thiodiglycol: Bis(2-hydroxyethyl)sulfide (S)-(+)-Pinacolyl alcohol (R)-(-)-Pinacolyl alcohol Sulfur mustards R1= R2= Et Saxitoxin Ricin 1A(4) 2B(11) 2B(12) 2B(13) 2B(14) 1A(7) 1A(8) Schedule 1 Part B, Precursors Cl R R O 3 4 P Schedule 3 Cl O O (Used in production of Schedule 1 chemicals) N P R R P F 2 P 1 R O O 1 O O O F R1= Me, Et, n-Pr, i-Pr Including corresponding R2= C10 incl. cycloalkyl alkylated and/or R1= Me, Et, n-Pr, i-Pr R3= Me, Et, n-Pr, i-Pr protonated salts S e.g. DF R4= Me, Et, n-Pr, i-Pr Chlorosarin Chlorosoman e.g. QL Schedule 2 Cl Cl Schedule 1 1B(9) 1B(10) 1B(11) 1B(12) (A Precursor) Thionyl chloride 3B(14) ORGANISATION FOR THE S S HO OH Cl Cl PROHIBITION OF CHEMICAL WEAPONS Thiodiglycol Sulfur mustard Working Together for a World Free of Chemical Weapons 2B(13) 1A(4) @opcw Scheduled chemicals, including those in schedules 1 and 2, can have scientifically and economically /opcwonline /opcwonline @opcw_st /company/opcw /opcw Relationship between Schedules, illustrated with sulfur mustard. important uses. 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