2,3,5-Trimethylhydroquinone

Agent Name
2,3,5-Trimethylhydroquinone
CAS Number
700-13-0
Formula
C9-H12-O2
Major Category
Other Classes
2,3,5-Trimethylhydroquinone formula graphical representation
Synonyms
2,3,5-Trimethylquinol; 2,3,5-Trimethyl-1,4-benzenediol; 2,3,6-Trimethylhydroquinone; Pseudocumohydroquinone; psi-Cumohydroquinone; Trimethylhydroquinone; 1,4-Benzenediol, 2,3,5-trimethyl-; Hydroquinone, trimethyl-; [ChemIDplus] 1,4-Dihydroxy-2,3,5-trimethylbenzene; Trimethyl-p-hydroquinone; Trimethylhydrochinon; [IUCLID] 3,6-Dihydroxypseudocumol; TMHQ; [RTECS] 2,3,5-Trimethylbenzene-1,4-diol; [ECHA REACH Registrations] 3,6-Dihydroxypseudocumene; [Sigma-Aldrich MSDS] UN3077
Category
Phenols
Description
Beige powder; [Sigma-Aldrich MSDS]
Sources/Uses
"Reducing agent." [ChemIDplus] Used to make fine chemicals; [ExPub: ECHA REACH Registrations]
Comments
Causes burns or irritation to rabbit skin; A severe eye irritant in rabbits; A skin sensitizer in guinea pig skin painting test; [IUCLID] Danger of skin sensitization; [MAK] Causes corneal damage, other cardiac changes, and emphysema in inhalation lethal-concentration studies of rats; [RTECS] An irritant that may cause serious eye injury; May cause skin sensitization; Harmful by inhalation; [Sigma-Aldrich MSDS] See "Hydroquinone."
Biomedical References

Exposure Assessment

Vapor Pressure
0.000204 mm Hg
Lethal Concentration
LC50 (rat) = 1,500 mg/m3/4hr
Explanatory Notes
The Guide in the Emergency Response Guidebook is for "Environmentally hazardous substances, solid, n.o.s."

Adverse Effects

Skin Sensitizer
Yes

Diseases, Processes, and Activities Linked to This Agent

Diseases

Occupational diseases associated with exposure to this agent: