Skip to main content

Interactive EAR

Chapter VII

Supplement No. 1 to Part 745—Schedules of Chemicals

This version is the current regulation | Last updated: October 8, 2024

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
Note to Supplement 1:

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]