PAC Database - Detailed Chemical Data
Chemical Identity
| Chemical | CAS# | UN# | Health Code Numbers | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ethyl lactate; (Ethyl (S)-(-)-lactate) | 687-47-8 |
11.01
4.01
15.01
|
||||||||||
| Formula | Synonyms | |||||||||||
| C5.H10.O3 | ||||||||||||
Physical Properties
| Mol Wt | State | MP (°C) | BP (°C) | VP (Hg) | VP (°C) | SG | LEL (ppm) |
|---|---|---|---|---|---|---|---|
| 118.13 | L/S | 25 | 154 | 3.75 | 25 | 1.042 | 15000 |
PAC Values
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 3.6 | 40 | 240 |
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.75 | 8.3 | 50 |
Technical Basis
A review of available limited sources identified rat LC50 acute exposure data. This was selected as the TEEL-3 basis; this basis was evaluated using a factor from Table 3.4 and scaled to a 60-minute equivalent using the ten Berge equation (Section 3.3.4). TEEL-2 and TEEL-1 values were calculated according to Table 3.5.
• TEEL-1 = TEEL-2/11
• TEEL-2 = TEEL-3/6
• TEEL-3 = Rat LC50 (>5,400 mg/m3/4H)
This review generated TEEL values that are inconsistent with Rev. 29A. The Rev. 29A TEEL-3 basis, a mouse oral LD50, while the current basis is an LC50, a higher priority route (LC50 > LD50, Table 3.1). The TEEL-2 and TEEL-1 methodology used in Rev. 29A and the current review are consistent, with differences due to the change in TEEL-3.
• TEEL-1 = TEEL-2/11
• TEEL-2 = TEEL-3/6
• TEEL-3 = Rat LC50 (>5,400 mg/m3/4H)
This review generated TEEL values that are inconsistent with Rev. 29A. The Rev. 29A TEEL-3 basis, a mouse oral LD50, while the current basis is an LC50, a higher priority route (LC50 > LD50, Table 3.1). The TEEL-2 and TEEL-1 methodology used in Rev. 29A and the current review are consistent, with differences due to the change in TEEL-3.
References
Rat LC50. Haz-Map, retrieved from: https://pubchem.ncbi.nlm.nih.gov/compound/92831