PHENYLHYDROQUINONE

Synonym(s):2,5-Biphenyldiol;2,5-Dihydroxybiphenyl

white to grey-brownish powder

2-Phenylhydroquinone (cas# 1079-21-6) is a compound useful in organic synthesis.

Poison by intraperitoneal andintravenous routes. Mutation data reported. When heatedto decomposition it emits acrid smoke and irritatingfumes.

Melting point:	98-100 °C(lit.)
Boiling point:	280.69°C (rough estimate)
Density	1.228
refractive index	1.6010 (estimate)
storage temp.	Keep in dark place,Inert atmosphere,Room temperature
solubility	Chloroform (Slightly), DMSO (Slightly)
form	Solid
pka	10.46±0.18(Predicted)
color	Needles from EtOH (aq)
BRN	1949429
CAS DataBase Reference	1079-21-6(CAS DataBase Reference)
EPA Substance Registry System	[1,1'-Biphenyl]-2,5-diol (1079-21-6)

Signal word	Warning
Pictogram(s)	Exclamation Mark Irritant GHS07
GHS Hazard Statements	H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes	P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P271:Use only outdoors or in a well-ventilated area. P280:Wear protective gloves/protective clothing/eye protection/face protection. P302+P352:IF ON SKIN: wash with plenty of soap and water. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.