t-Butylhydroquinone

Synonyms

1,4-Benzenediol (1,1-dimethylethyl)-; 1,4-Benzenediol, 2-(1,1-dimethylethyl)-; 2-(1,1-Dimethylethyl)-1,4-benzenediol; 2-t-Butylhydroquinone; 2-tert-Butyl(1,4)hydroquinone; 2-tert-Butyl-1,4-benzenediol; 2-tert-Butylhydroquinone; Banox 20BA; Hydroquinone, t-butyl-; Hydroquinone, tert-butyl-; MTBHQ; Mono-tert-butylhydroquinone; Mono-tertiarybutylhydroquinone; Sustane; TBHQ; Tenox TBHQ; t-Butyl hydroquinone; tert-Butyl-1,4-benzenediol; tert-Butylhydrochinone\r\n; tert-Butylhydroquinone; tertiary-Butylhydroquinone; Butylhydroquinone, tert-; [ChemIDplus] UN3077

Category

Phenols

Description

White to light tan solid; [HSDB] Tan powder; [MSDSonline]

Sources/Uses

Used as antioxidant for fats and oils (approved for use in foods); [HSDB] Used at concentrations of 0.1 to 1.0% in cosmetics; Also used to prevent rancidity in food at concentrations of 0.02%; [REPROTOX]

Comments

Causes ataxia in inhalation studies and changes in liver weight in feeding studies of laboratory animals; [RTECS] Not likely to be embryotoxic in humans based on studies of rats exposed to 0.5% in the diet; [REPROTOX] A skin and eye irritant; [CAMEO] Skin sensitization has been reported in cosmetics and cutting oils; [Kanerva, p. 1763] An irritant; [MSDSonline] See "Hydroquinone."

Biomedical References

LCLo (rat) = 2,900 mg/m3/4h

Explanatory Notes

The Guide in the Emergency Response Guidebook is for "Environmentally hazardous substances, solid, n.o.s."

Yes

Diseases

Occupational diseases associated with exposure to this agent:

• Contact dermatitis, allergic

Processes

Industrial Processes with risk of exposure:

• Metal Machining