PAC Database - Detailed Chemical Data

Chemical Identity
Chemical CAS# UN# Health Code Numbers
Veratraldehyde 120-14-9
15.02
7.01
4.07
15.01
Formula Synonyms
C9.H10.O3 VERATRALDEHYDE, 3,4-DIMETHOXYBENZALDEHYDE, 3,4-DIMETHOXYBENZENECARBONAL, 4-O-METHYLVANILLIN, 40-METHYLVANILLIN, METHYLVANILLIN, P-VERATRIC ALDEHYDE, PROTOCATECHUALDEHYDE DIMETHYL ETHER, PROTOCATECHUIC ALDEHYDE DIMETHYL ETHER, VANILLIN METHYL ETHER, VERATRAL, VERATRIC ALDEHYDE, VERATRUM ALDEHYDE, VERATRYL ALDEHYDE
Physical Properties
Mol Wt State MP (°C) BP (°C) VP (Hg) VP (°C) SG LEL (ppm)
166.19 S 281
PAC Values
PAC Values (Original Units: mg/m3)
PAC-1 PAC-2 PAC-3
6.0 66 400
Converted PAC Values (ppm)
PAC-1 PAC-2 PAC-3
0.88 9.7 59
Technical Basis
A review of available sources identified acute toxicity data (LD50) for various species and 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 data, a rat oral LD50, was selected as the TEEL-3 basis. TEEL-1 and TEEL-2 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 oral LD50 (2 g/kg)
This review generated PAC values consistent with Rev. 29A*.
References
Chemical information: https://pubchem.ncbi.nlm.nih.gov/compound/Veratraldehyde.
Rat oral LD50: Food and Cosmetics Toxicology., 13(923), 1975. Retrieved from: https://pubchem.ncbi.nlm.nih.gov/compound/Veratraldehyde.
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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.