Synonyms: 1,4-Benzenediol, 1,4-Dihydroxybenzene, HQ CAS: 123-31-9 Empirical Formula: C6H4-1,4-(OH)2 Molecular Weight: 110.11 g/mol Test Specification Appearance (Color) White to off-white Appearance (Form) Crystalline powder Assay (GLC) 99.00 - 100.00% Water