| CAS registry No. |
|
|---|---|
| Schedule 1 | |
| A. Toxic Chemicals: | |
| 1. Family: O-Alkyl(≤C10, incl. cycloalkyl) alkyl (Me, Et, n-Pr or i-Pr)- phosphonofluoridates | |
| Not limited to the following examples: | |
| Sarin: O-Isopropyl methylphosphonofluoridate | 107-44-8 |
| Soman: O-Pinacolyl methylphosphonofluoridate | 96-64-0 |
| 2. Family: O-Alkyl (≤C10, incl. cycloalkyl) N,N-dialkyl (Me, Et, n-Pr or i-Pr) phosphoramidocyanidates | |
| Not limited to the following example: | |
| Tabun: O-Ethyl N,N-dimethyl phosphoramidocyanidate | 77-81-6 |
| 3. Family: O-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 | |
| Not limited to the following example: | |
| VX: O-Ethyl S-2-diisopropylaminoethyl methyl phosphonothiolate | 50782-69-9 |
| 4. Sulfur mustards: | |
| 2-Chloroethylchloromethylsulfide | 2625-76-5 |
| Mustard gas: Bis(2-chloroethyl)sulfide | 505-60-2 |
| Bis(2-chloroethylthio)methane | 63869-13-6 |
| Sesquimustard: 1,2-Bis(2-chloroethylthio)ethane | 3563-36-8 |
| 1,3-Bis(2-chloroethylthio)-n-propane | 63905-10-2 |
| 1,4-Bis(2-chloroethylthio)-n-butane | 142868-93-7 |
| 1,5-Bis(2-chloroethylthio)-n-pentane | 142868-94-8 |
| Bis(2-chloroethylthiomethyl)ether | 63918-90-1 |
| O-Mustard: Bis(2-chloroethylthioethyl)ether | 63918-89-8 |
| 5. Lewisites: | |
| Lewisite 1: 2-Chlorovinyldichloroarsine | 541-25-3 |
| Lewisite 2: Bis(2-chlorovinyl)chloroarsine | 40334-69-8 |
| Lewisite 3: Tris(2-chlorovinyl)arsine | 40334-70-1 |
| 6. Nitrogen mustards: | |
| HN1: Bis(2-chloroethyl)ethylamine | 538-07-8 |
| HN2: Bis(2-chloroethyl)methylamine | 51-75-2 |
| HN3: Tris(2-chloroethyl)amine | 555-77-1 |
| 7. Saxitoxin | 35523-89-8 |
| 8. Ricin | 9009-86-3 |
| 13. Family: P-alkyl (H or ≤C10, incl. cycloalkyl) N-(1-(dialkyl(≤C10, incl. cycloalkyl)amino))alkylidene(H or ≤C10, incl. cycloalkyl) phosphonamidic fluorides and corresponding alkylated or protonated salts | |
| Not limited to the following examples: | |
| N-(1-(di-n-decylamino)-n-decylidene)-P-decylphosphonamidic fluoride | 2387495-99-8 |
| Methyl-(1-(diethylamino)ethylidene)phosphonamidofluoridate | 2387496-12-8 |
| 14. Family: O-alkyl (H or ≤C10, incl. cycloalkyl) N-(1-(dialkyl(≤C10, incl. cycloalkyl)amino))alkylidene(H or ≤C10, incl. cycloalkyl) phosphoramidofluoridates and corresponding alkylated or protonated salts | |
| Not limited to the following examples: | |
| O-n-Decyl N-(1-(di-n-decylamino)-n decylidene)phosphoramidofluoridate | 2387496-00-4 |
| Methyl (1-(diethylamino)ethylidene)phosphoramidofluoridate | 2387496-04-8 |
| Ethyl (1-(diethylamino)ethylidene)phosphoramidofluoridate | 2387496-06-0 |
| 15. Methyl-(bis(diethylamino)methylene)phosphonamidofluoridate | 2387496-14-0 |
| 16. Carbamates (quaternaries and bisquaternaries of dimethylcarbamoyloxypyridines) | |
| 16.1. Family: Quaternaries of dimethylcarbamoyloxypyridines: 1-[N,N-dialkyl(≤C10)-N-(n-(hydroxyl, cyano, acetoxy)alkyl(≤C10)) ammonio]-n-[N-(3-dimethylcarbamoxy-α-picolinyl)-N,N-dialkyl(≤C10) ammonio]decane dibromide (n=1-8) | |
| Not limited to the following example: | |
| 1-[N,N-dimethyl-N-(2-hydroxy)ethylammonio]-10-[N-(3-dimethylcarbamoxy-α-picolinyl)-N,N-dimethylammonio]decane dibromide | 77104-62-2 |
| 16.2. Family: Bisquaternaries of dimethylcarbamoyloxypyridines:1,n-Bis[N-(3-dimethylcarbamoxy-α-picolyl)-N,N-dialkyl(≤C10) ammonio]-alkane-(2,(n-1)-dione) dibromide (n=2-12) | |
| Not limited to the following example: | |
| 1,10-Bis[N-(3-dimethylcarbamoxy-α-picolyl)-N-ethyl-N- methylammonio]decane-2,9-dione dibromide | 77104-00-8 |
| B. Precursors: | |
| 9. Family: Alkyl (Me, Et, n-Pr or i-Pr) phosphonyldifluorides | |
| Not limited to the following example: | |
| DF: Methylphosphonyldifluoride | 676-99-3 |
| 10. Family: O-Alkyl (H or ≤C10, incl. cycloalkyl) O-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 | |
| Not limited to the following example: | |
| QL: O-Ethyl O-2-diisopropylaminoethyl methylphosphonite | 57856-11-8 |
| 11. Chlorosarin: O-Isopropyl methylphosphonochloridate | 1445-76-7 |
| 12. Chlorosoman: O-Pinacolyl methylphosphonochloridate | 7040-57-5 |
| Schedule 2 | |
| A. Toxic Chemicals: | |
| 1. Amiton: O,O-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: | |
| 4. Family: 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, | |
| Not limited to the following examples: | |
| Methylphosphonyl dichloride | 676-97-1 |
| Dimethyl methylphosphonate | 756-79-6 |
| Exemption: Fonofos: O-Ethyl S-phenyl ethylphosphonothiolothionate | 944-22-9 |
| 5. Family: N,N-Dialkyl (Me, Et, n-Pr or i-Pr) phosphoramidic dihalides | |
| 6. Family: 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. Family: N,N-Dialkyl (Me, Et, n-Pr or i-Pr) aminoethyl-2-chlorides and corresponding protonated salts | |
| 11. Family: 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 | 108-01-0 |
| N,N-Diethylaminoethanol and corresponding protonated salts | 100-37-8 |
| 12. Family: 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 | |
| A. Toxic Chemicals: | |
| 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: | |
| 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 |
The numerical sequence of the “Schedule 1” Toxic Chemicals and Precursors is not consecutive so as to align with the December 23, 2019, consolidated textual changes to “Schedule 1” of the Annex on Chemicals to the Chemical Weapons Convention (CWC ), which reflect the decisions adopted by the CWC Conference of the States Parties in November 2019.
[86 FR 942, Jan. 7, 2021]