PAC Database - Detailed Chemical Data

Chemical Identity
Chemical CAS# UN# Health Code Numbers
Methyl-5-vinylpyridine, 2- 140-76-1
14.01
15.02
7.01
11.00
4.08
4.07
7.11
7.10
3.08
3.05
Formula Synonyms
C8H9N PYRIDINE, 2-METHYL-5-VINYL-, 2-METHYL- 5-ETHENYLPYRIDINE, 2-METHYL-5-VINYLPYRIDINE, 2-PICOLINE, 5-VINYL-, 5-VINYL-2-PICOLINE, PYRIDINE, 5-ETHENYL-2-METHYL-
Physical Properties
Mol Wt State MP (°C) BP (°C) VP (Hg) VP (°C) SG LEL (ppm)
119.18 L 181 1.7 25 0.98 @ 20°C
PAC Values
PAC Values (Original Units: mg/m3)
PAC-1 PAC-2 PAC-3
0.17 1.9 6.6
Converted PAC Values (ppm)
PAC-1 PAC-2 PAC-3
0.035 0.39 1.4
Technical Basis
A review of available sources identified rat and mouse acute toxicity data (LD50, LC50) for inhalation and oral exposures, and a Level of Concern (LOC). 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 data of the most preferred species and exposure, a rat LC50, was selected as the TEEL-3 basis and was scaled to 60-minute equivalent using the ten Berge equation (Section 3.3.4). The LOC was selected as the TEEL-2. The TEEL-1 value was derived according to Table 3.5.
• TEEL-1 = TEEL-2/11
• TEEL-2 = LOC (0.0019 g/m3)
• TEEL-3 = Rat LC50 (189 mg/m3/2H)
This review generated TEEL values that are consistent with Rev. 29A*.
References
Chemical information: https://pubchem.ncbi.nlm.nih.gov/compound/2-Methyl-5-vinylpyridine
Rat LC50: Toxicometric Parameters of Industrial Toxic Chemicals Under Single Exposure, Izmerov, N.F., et al., Moscow, Centre of International Projects, GKNT, 1982, -(88), 1982. Retrieved from: https://pubchem.ncbi.nlm.nih.gov/compound/2-Methyl-5-vinylpyridine
LOC: Retrieved from Appendix C (page C-8) as “Pyridine, 2-methyl-5-vinyl"; https://www.epa.gov/sites/default/files/2015-09/documents/technical_guidance_for_hazard_analysis.pdf
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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.