PAC Database - Detailed Chemical Data

Chemical Identity
Chemical CAS# UN# Health Code Numbers
Oxathiane, 1,4- 15980-15-1
15.01
16.02
Formula Synonyms
C4H8OS
Physical Properties
Mol Wt State MP (°C) BP (°C) VP (Hg) VP (°C) SG LEL (ppm)
104.18 L -17 148.7 1.12 @ 20°C
PAC Values
PAC Values (Original Units: ppm)
PAC-1 PAC-2 PAC-3
2.6 29 170
Converted PAC Values (mg/m3)
PAC-1 PAC-2 PAC-3
11 120 720
Technical Basis
A review of available sources identified acute rat toxicity data (LD50, LCLo) for oral and inhalation 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 route, a 4-hour rat LCLo, was selected as the TEEL-3 basis and was 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.
• PAC-1 = TEEL-1 = TEEL-2/11
• PAC-2 = TEEL-2 = TEEL-3/6
• PAC-3 = TEEL-3 = Rat LCLo (4000 ppm/4H)
This review generated PAC values consistent with Rev. 29A*.
References
Chemical information: https://comptox.epa.gov/dashboard/chemical/properties/DTXSID0065985
Rat LCLo. Journal of Industrial Hygiene and Toxicology., 31(343), 1949 [PMID:15407114]. Retrieved from: https://pubchem.ncbi.nlm.nih.gov/compound/27596
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PAC values marked with a subscript "A" correspond to 60-minute AEGL values.
PAC values marked with a subscript "E" correspond to ERPG values.
PAC values marked by * are >= 10% lower explosive limit (LEL) but < 50% LEL.
PAC values marked by ** are > 50% LEL but < 100% LEL.
PAC values marked by *** are >= LEL.