PAC Database - Detailed Chemical Data
Chemical Identity
| Chemical | CAS# | UN# | Health Code Numbers | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Triethylphosphorothioate; (Tepto) | 126-68-1 |
11.00
|
||||||||||
| Formula | Synonyms | |||||||||||
| C6.H15.O3.P.S | ||||||||||||
Physical Properties
| Mol Wt | State | MP (°C) | BP (°C) | VP (Hg) | VP (°C) | SG | LEL (ppm) |
|---|---|---|---|---|---|---|---|
| 198.24 | L | 1.074 |
PAC Values
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.027 | 0.3 | 1.8 |
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.22 | 2.4 | 15 |
Technical Basis
A review of available sources identified rat and mouse toxicity data (LC50, LDLo, LD50) for several routes. Data sources were selected according to the hierarchy listed in Table 3.1. Toxicity data were selected according to type of exposure, species, and route according to the hierarchies stated in Sections 3.3.1, 3.3.2, and evaluated using factors in Tables 3.2, 3.3, and 3.4. The most preferred species and exposure data, a rat LC50, was selected as the TEEL-3 basis and scaled to a 60-minute equivalent using the ten Berge equation (Section 3.3.4). TEEL-2 and TEEL-1 values were derived according to Table 3.5.
• TEEL-1 = TEEL-2/11
• TEEL-2 = TEEL-3/6
• TEEL-3 = Rat LC50 (41 ppm/4H)
This review generated TEEL values that are consistent with Rev. 29A*.
• TEEL-1 = TEEL-2/11
• TEEL-2 = TEEL-3/6
• TEEL-3 = Rat LC50 (41 ppm/4H)
This review generated TEEL values that are consistent with Rev. 29A*.
References
Chemical information: https://pubchem.ncbi.nlm.nih.gov/compound/O_O_O-Triethyl-phosphorothioate
https://www.chemicalbook.com/ChemicalProductProperty_EN_CB8502883.htm
Rat Inhalation LC50 (41 ppm/4H): Prehled Prumyslove Toxikologie; Organicke Latky, Marhold, J., Prague, Czechoslovakia, Avicenum, 1986, -(1149), 1986 via PubChem https://pubchem.ncbi.nlm.nih.gov/compound/O_O_O-Triethyl-phosphorothioate.