PAC Database - Detailed Chemical Data
Chemical Identity
| Chemical | CAS# | UN# | Health Code Numbers | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ethyl-S-dimethylaminoethyl methylphosphonothiolate; (VX nerve agent) | 50782-69-9 |
6.00
15.01
4.01
11.01
4.08
4.05
7.01
7.00
11.00
4.06
|
||||||||||
| Formula | Synonyms | |||||||||||
| C11H26NO2PS | PHOSPHONOTHIOIC ACID, METHYL-, S-(2-(BIS(1-METHYLETHYL)AMINO, A 4, ETHYL S-DIMETHYLAMINO- ETHYL METHYLPHOSPHONOTHIOLATE, ETHYL-S-DIISOPROPYLAMINOETHYL METHYLTHIOPHOSPHONATE, MPT, O-ETHYL S-(2-DIISOPROPYLAMINOETHYL) METHYLPHOSPHONOTHIOATE, O-ETHYL S-(2-DIISOPROPYLAMINOETHYL) METHYLTHIOPHOSPHONATE, O-ETHYL S-DIISOPROPYLAMINOETHYL METHYLPHOSPHONOTHIOATE, PHOSPHONOTHIOIC ACID, METHYL-, S-(2-(DIISOPROPYLAMINO)ETHYL), S-(2-DIISOPROPYLAMINOETHYL) O-ETHYL METHYLPHOSPHONOTHIOLATE, S-2-DIISOPROPYLAMINOETHYL O-ETHYL METHYLPHOSPHONOTHIOATE, S-[2-(DIISOPROPYLAMINO)ETHYL] O-ETHYL METHYLPHOSPHONOTHIOLAT, TX 60, VX, VX AGENT, VX VAPOR | |||||||||||
Physical Properties
| Mol Wt | State | MP (°C) | BP (°C) | VP (Hg) | VP (°C) | SG | LEL (ppm) |
|---|---|---|---|---|---|---|---|
| 267.41 | L? |
PAC Values
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.000016 | 0.00027 | 0.00091 |
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.00017 | 0.0030 | 0.0100 |
Technical Basis
A review of available sources identified AEGLs for this chemical. The AEGLs were selected as the TEELs due to their priority among the emergency exposure limits (Section 1).
• TEEL-1 = AEGL-1
• TEEL-2 = AEGL-2
• TEEL-3 = AEGL-3
This review generated TEEL values that are consistent with Rev. 29A*; minor differences in the Rev. 29A reported TEEL-2 and TEEL-3 values in units mg/m3 may be due to conversion and rounding of these values, instead of use of source values. Values in units mg/m3 are reported as published in the technical support document Table 1-1, per handbook guidance (Section 3.4.7.2).
• TEEL-1 = AEGL-1
• TEEL-2 = AEGL-2
• TEEL-3 = AEGL-3
This review generated TEEL values that are consistent with Rev. 29A*; minor differences in the Rev. 29A reported TEEL-2 and TEEL-3 values in units mg/m3 may be due to conversion and rounding of these values, instead of use of source values. Values in units mg/m3 are reported as published in the technical support document Table 1-1, per handbook guidance (Section 3.4.7.2).
References
AEGLs: https://www.epa.gov/aegl/agent-vx-results-aegl-program
Chemical information: Retrieved from Table 1-6 of the EPA Technical Support Document; https://www.epa.gov/aegl/agent-vx-results-aegl-program