PAC Database - Detailed Chemical Data
Chemical Identity
| Chemical | CAS# | UN# | Health Code Numbers | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Methyllactic acid ethyl ester, 2-; (Ethyl 2-hydroxyisobutyrate) | 80-55-7 |
7.01
7.00
11.00
|
||||||||||
| Formula | Synonyms | |||||||||||
| C6H12O3 | ||||||||||||
Physical Properties
| Mol Wt | State | MP (°C) | BP (°C) | VP (Hg) | VP (°C) | SG | LEL (ppm) |
|---|---|---|---|---|---|---|---|
| 132.18 | L |
PAC Values
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 12 | 130 | 790 |
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 2.2 | 24 | 150 |
Technical Basis
A review of available sources did not identify exposure limits or acute toxicity data for 2-methyllactic acid ethyl ester. Reported GHS health hazard ratings (H315 and H319, Category 2; H335, inhalation Category 3) indicate a mid-level health hazard, approximately equivalent to an HHR=2. Analysts assumed an HHR=2 as the TEEL-3 basis (Section 3.4.5). TEEL-2 and TEEL-1 values were derived according to Table 3.5.
• PAC-1 = TEEL-1 = TEEL-2/11
• PAC-2 = TEEL-2 = TEEL-3/6
• PAC-3 = TEEL-3 = HHR=2
This review generated PAC values consistent with Rev. 29A*.
• PAC-1 = TEEL-1 = TEEL-2/11
• PAC-2 = TEEL-2 = TEEL-3/6
• PAC-3 = TEEL-3 = HHR=2
This review generated PAC values consistent with Rev. 29A*.
References
Chemical information and GHS health hazard codes: https://pubchem.ncbi.nlm.nih.gov/compound/6653