PAC Database - Detailed Chemical Data

Chemical Identity
Chemical CAS# UN# Health Code Numbers
Norbormide 991-42-4
4.08
15.02
8.00
7.01
7.00
11.00
4.06
4.10
3.02
3.11
Formula Synonyms
C33H25N3O3 NORBORMIDE, 4,7-METHANO-1H-ISOINDOLE- 1,3(2H)-DIONE,3A,4,7,7A-TETRAHYDRO, 5-NORBORNENE-2,3-DICARBOXIMIDE, 5-(ALPHA-HYDROXY-ALPHA-2- PY, 5-NORBORNENE-2,3-DICARBOXIMIDE, 5-(ALPHA-HYDROXY-ALPHA-2-PYR, COMPOUND S 6999, COMPOUND S-6,999, ENT 51,762, MCN 1025, MCNEIL 1025, RATICATE, RATICIDE, S 6999, S-6,999, SHOXIN
Physical Properties
Mol Wt State MP (°C) BP (°C) VP (Hg) VP (°C) SG LEL (ppm)
511.61 S
PAC Values
PAC Values (Original Units: mg/m3)
PAC-1 PAC-2 PAC-3
0.35 3.8 190
Converted PAC Values (ppm)
PAC-1 PAC-2 PAC-3
0.017 0.18 9.1
Technical Basis
A review of available sources identified a LOC and acute toxicity data (LD50) for several species (monkey, rat, mouse, cat, dog) for oral 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, a monkey oral LD50, was selected as the TEEL-3. 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 (0.0038 g/m3)
• TEEL-3 = Monkey oral LD50 (1 g/kg)
This review generated TEEL values consistent with Rev. 29A*.
References
Chemical information: https://pubchem.ncbi.nlm.nih.gov/compound/Norbormide
Monkey LD50. Yakkyoku. Pharmacy., 31(1385), 1980. Retrieved from: https://pubchem.ncbi.nlm.nih.gov/compound/Norbormide
LOC. Appendix C, pg. C-6. 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.