Pharmaceutical Materials

CAS No.123-31-9

 

Attribute	Details
Chemical Name	Hydroquinone
CAS Number	123-31-9
Synonyms	1.4-Benzenediol; p-Benzenediol; p-Dihydroxybenzene
Molecular Formula	C6H6O2
Molecular Weight	110.11 g/mol
Appearance	White to pale crystalline powder
Density	1.323 g/cm³ at 20 °C
Melting Point	158-161 °C
Solubility	Soluble in water, alcohol, ether, and glycerol; slightly soluble in benzene and chloroform
Uses	Used as a skin-lightening agent in cosmetics and pharmaceuticals; in the development of photographic films and printing plates; as an antioxidant in rubber and petroleum products; as a reducing agent in the chemical industry; in the synthesis of dyes and other chemicals.
Health Effects	May cause skin irritation and sensitization. Ingestion may cause gastrointestinal distress. Long-term exposure may affect the liver, kidneys, and central nervous system. Carcinogenic potential has been reported in some studies.
Safety Information	Handle with caution. Avoid contact with skin, eyes, and clothing. Wear appropriate personal protective equipment. Store in a cool, dry place, away from incompatible materials and sources of ignition. Follow safety regulations and MSDS guidelines. In case of spill, contain and dispose of according to local regulations. Avoid prolonged or repeated exposure.

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