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Annex on Chemicals
"Chemicals Annex"

B. Schedules of Chemicals

The following Schedules list toxic chemicals and their precursors. For the purpose of implementing this Convention, these Schedules identify chemicals for the application of verification measures according to the provisions of the Verification Annex. Pursuant to Article II, subparagraph 1 (a), these Schedules do not constitute a definition of chemical weapons.

(Whenever reference is made to groups of dialkylated chemicals, followed by a list of alkyl groups in parentheses, all chemicals possible by all possible combinations of alkyl groups listed in the parentheses are considered as listed in the respective Schedule as long as they are not explicitly exempted. A chemical marked "*" on Schedule 2, part A, is subject to special thresholds for declaration and verification, as specified in Part VII of the Verification Annex.)

Schedule 1 Chemicals

A. Toxic chemicals: (CAS registry number)
(1) 0-Alkyl (<C10, incl. cycloalkyl) alkyl
(Me, Et, n-Pr or i-Pr)-phosphonofluoridates

e.g. Sarin: 0-Isopropyl methylphosphonofluoridate
     Soman: 0-Pinacolyl methylphosphonofluoridate
(2) 0-Alkyl (<C10, incl. cycloalkyl) N,N-dialkyl
(Me, Et, n-Pr or i-Pr)-phosphoramidocyanidates

e.g. Tabun: 0-Ethyl N,N-dimethyl
(3) 0-Alkyl (H or <C10, incl. cycloalkyl) S-2-dialkyl
(Me, Et, n-Pr or i-Pr)-aminoethyl alkyl
(Me, Et, n-Pr or i-Pr)-phosphonothiolates and corresponding
alkylated or protonated salts

e.g. VX: 0-Ethyl S-2-diisopropylaminoethyl
          methyl phosphonothiolate
(4) Sulfur mustards:

Mustard gas: Bis(2-chloroethyl)sulfide

Sesquimustard: 1,2-Bis(2-chloroethylthio)ethane

0-Mustard: Bis(2-chloroethylthioethyl)ether



(5) Lewisites:
Lewisite 1: 2-Chlorovinyldichloroarsine
Lewisite 2: Bis(2-chlorovinyl)chloroarsine
Lewisite 3: Tris(2-chlorovinyl)arsine
(6) Nitrogen mustards:
HN1: Bis(2-chloroethyl)ethylamine
HN2: Bis(2-chloroethyl)methylamine
HN3: Tris(2-chloroethyl)amine
(7) Saxitoxin (35523-89-8)
(8) Ricin (9009-86-3)

B. Precursors: (CAS registry number)
(9) Alkyl (Me, Et, n-Pr or i-Pr) phosphonyldifluorides

e.g. DF: Methylphosphonyldifluoride
(10) 0-Alkyl (H or < C10, incl. cycloalkyl) 0-2-dialkyl
(Me, Et, n-Pr or i-Pr)-aminoethyl alkyl
(Me, Et, n-Pr or i-Pr) phosphonites and corresponding
alkylated or protonated salts

e.g. QL: 0-Ethyl 0-2-diisopropylaminoethyl
(11) Chlorosarin: 0-Isopropyl
(12) Chlorosoman: 0-Pinacolyl

Schedule 2 Chemicals

A. Toxic chemicals: (CAS registry number)
(1) Amiton: 0,0-Diethyl S-[2-(diethylamino)ethyl] phosphorothiolate and corresponding alkylated or protonated salts (78-53-5)
(2) PFIB: 1,1,3,3,3-Pentafluoro-2-(trifluoromethyl)-1-propene (382-21-8)
(3) BZ: 3-Quinuclidinyl benzilate (*) (6581-06-2)

B. Precursors: (CAS registry number)
(4) Chemicals, except for those listed in Schedule 1, containing a phosphorus atom to which is bonded one methyl, ethyl or propyl (normal or iso) group but not further carbon atoms,

e.g. Methylphosphonyl dichloride
Dimethyl methylphosphonate

Exemption: Fonofos: 0-Ethyl S-phenyl


(5) N,N-Dialkyl (Me, Et, n-Pr or i-Pr) phosphoramidic dihalides -      
(6) Dialkyl (Me, Et, n-Pr or i-Pr) N,N-dialkyl (Me, Et, n-Pr or i-Pr)-phosphoramidates -      
(7) Arsenic trichloride (7784-34-1)
(8) 2,2-Diphenyl-2-hydroxyacetic acid (76-93-7)
(9) Quinuclidine-3-ol (1619-34-7)
(10) N,N-Dialkyl (Me, Et, n-Pr or i-Pr) aminoethyl-2-chlorides and corresponding protonated salts -      
(11) N,N-Dialkyl (Me, Et, n-Pr or i-Pr) aminoethane-2-ols
and corresponding protonated salts
Exemptions: N,N-Dimethylaminoethanol
and corresponding protonated salts
and corresponding protonated salts



(12) N,N-Dialkyl (Me, Et, n-Pr or i-Pr) aminoethane-2-thiols
and corresponding protonated salts
(13) Thiodiglycol: Bis(2-hydroxyethyl)sulfide (111-48-8)
(14) Pinacolyl alcohol: 3,3-Dimethylbutane-2-ol (464-07-3)

Schedule 3 Chemicals

A. Toxic chemicals: (CAS registry number)
(1) Phosgene: Carbonyl dichloride (75-44-5)
(2) Cyanogen chloride (506-77-4)
(3) Hydrogen cyanide (74-90-8)
(4) Chloropicrin: Trichloronitromethane (76-06-2)

B. Precursors: (CAS registry number)
(5) Phosphorus oxychloride (10025-87-3)
(6) Phosphorus trichloride (7719-12-2)
(7) Phosphorus pentachloride (10026-13-8)
(8) Trimethyl phosphite (121-45-9)
(9) Triethyl phosphite (122-52-1)
(10) Dimethyl phosphite (868-85-9)
(11) Diethyl phosphite (762-04-9)
(12) Sulfur monochloride (10025-67-9)
(13) Sulfur dichloride (10545-99-0)
(14) Thionyl chloride (7719-09-7)
(15) Ethyldiethanolamine (139-87-7)
(16) Methyldiethanolamine (105-59-9)
(17) Triethanolamine (102-71-6)
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