PAC Database - Detailed Chemical Data

Chemical Identity
Chemical CAS# UN# Health Code Numbers
Coumarin 91-64-5
5.10
8.00
6.00
4.10
11.00
3.10
3.02
10.00
15.02
3.09
Formula Synonyms
C9.H6.O2 COUMARIN, 1,2-BENZOPYRONE, 2-OXO-1,2-BENZOPYRAN, 2-OXO-2H-1-BENZOPYRAN, 2-PROPENOIC ACID, 3-(2-HYDROXYPHENYL)-, DELTA-LACTONE, 2H-1-BENZOPYRAN-2-ONE, 5,6-BENZO-2-PYRONE, BENZO-ALPHA-PYRONE, CIS-O-COUMARINIC ACID LACTONE, COUMARINAC LACTONE, COUMARINIC ANHYDRIDE, CUMARIN, NCI-C07103, O-COUMARIC ACID LACTONE, O-HYDROXYCINNAMIC ACID DELTA-LACTONE, O-HYDROXYCINNAMIC ACID LACTONE, O-HYDROXYCINNAMIC LACTONE, RATTEX, TONKA BEAN CAMPHOR
Physical Properties
Mol Wt State MP (°C) BP (°C) VP (Hg) VP (°C) SG LEL (ppm)
146.15 S 0.935
PAC Values
PAC Values (Original Units: mg/m3)
PAC-1 PAC-2 PAC-3
0.88 9.7 58
Converted PAC Values (ppm)
PAC-1 PAC-2 PAC-3
0.15 1.6 9.7
Technical Basis
No technical basis available
References
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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.