4-DIMETHYLAMINOAZOBENZENE‡

Chemical Identification
CAS # 60-11-7
Formula

C₁₄H₁₅N₃

Synonyms

butter yellow; DAB; p-dimethylaminoazobenzene; N,N-dimethyl-4-aminoazobenzene; methyl yellow

Physical Properties
Physical description Yellow, leaf-shaped crystals.
Boiling point sublimes Molecular weight 225.3
Freezing point/melting point 232°F Vapor pressure 0.0000003 mmHg (est.)
Flash point Vapor density 7.78
Specific gravity Ionization potential
Lower explosive limit (LEL) Upper explosive limit (UEL)
NFPA health rating NFPA fire rating
NFPA reactivity rating NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs
Monitoring Methods Used by OSHA
Analyte code (IMIS no.)
Sampling group
Sampler/Sampling media
Sampling time*
Sampling volume (TWA)*
Sampling flow rate (TWA)*
Sampling volume (STEL/Peak/C)*
Sampling flow rate (STEL/Peak/C)*
Analytical method instruments
Method reference
Notes
Special requirements

* All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details.

Wipe Method
Sampler/Sampling media
Bulk Method
Bulk Method
On-Site Screening Techniques
Device
Model/Type
Sampling information
(see manufacturer instructions)
Exposure Limits
OSHA PEL
8-hour TWA
(ST) STEL
(C) Ceiling
Peak
NIOSH REL
Up to 10-hour TWA
(ST) STEL
(C) Ceiling
ACGIH TLV©
8-hour TWA
(ST) STEL
(C) Ceiling
CAL/OSHA PEL
8-hour TWA
(ST) STEL
(C) Ceiling
Peak
PEL-TWA REL-TWA
 

 

TLV-TWA
 

 

PEL-TWA
 

 

PEL-STEL REL-STEL
 

 

TLV-STEL
 

 

PEL-STEL
 

 

PEL-C REL-C
 

 

TLV-C
 

 

PEL-C
 

 

Skin notation

N

Skin notation
 

N

Skin notation
 

NA

Skin notation
 

N

Notes:
 

See 29 CFR 1910.1015, 4- Dimethylaminoazobenzene and 29 CFR 1910.1003, 13 Carcinogens.

Notes:
 

CARCINOGEN (Ca): REDUCE EXPOSURE TO LOWEST FEASIBLE CONCENTRATION. See Appendix A, NIOSH Potential Occupational Carcinogens.

Notes:
 

Not established

Notes:
 

See California Code of Regulations, Title 8, Section 5209. Carcinogens.

Health factors:  See NIH-NLM PubChem. IDLH
Carcinogenic classifications: IARC-2B, NIOSH-Ca, NTP-R, OSHA-Ca Notes:
 

Ca

AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:
 

 

Last Updated Date : 12/15/2020