PAC Database - Detailed Chemical Data
Chemical Identity
| Chemical | CAS# | UN# | Health Code Numbers | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Diethylthiourea, N,N'- | 105-55-5 |
14.01
11.01
14.02
4.07
3.07
3.11
|
||||||||||
| Formula | Synonyms | |||||||||||
| C5H12N2S | N,N^-DIETHYLTHIOUREA, 1,3-DIETHYL-2-THIOUREA, 1,3-DIETHYLTHIOUREA, ACCEL EUR, N,N'-DIETHYLTHIOCARBAMIDE, NCI-C03816, NOCCELER EUR, PENNZONE E, THIATE H, THIOUREA, N,N'-DIETHYL-, U 15030, UREA, 1,3-DIETHYL-2-THIO-, USAF EK-1803 | |||||||||||
Physical Properties
| Mol Wt | State | MP (°C) | BP (°C) | VP (Hg) | VP (°C) | SG | LEL (ppm) |
|---|---|---|---|---|---|---|---|
| 132.25 | S | 77 |
PAC Values
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.95 | 10 | 63 |
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.18 | 1.8 | 12 |
Technical Basis
A review of available sources identified mouse and rat acute toxicity data (LD50, LDLo) 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 route toxicity data, a rat oral LD50, was selected as the TEEL-3 basis. 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 oral LD50 (316 mg/kg)
This review generated TEEL values that are consistent with Rev. 29A*.
• TEEL-1 = TEEL-2/11
• TEEL-2 = TEEL-3/6
• TEEL-3 = Rat oral LD50 (316 mg/kg)
This review generated TEEL values that are consistent with Rev. 29A*.
References
Chemical information: https://pubchem.ncbi.nlm.nih.gov/compound/N_N_-Diethylthiourea.
Rat LD50. Progress Report for Contract No. NIH-NCI-E-C-72-3252, Submitted to the National Cancer Institute by Litton Bionetics, Inc., NCI-E-C-72-3252(1973). Retrieved from: https://pubchem.ncbi.nlm.nih.gov/compound/N_N_-Diethylthiourea.