H3660

Hydroquinone

meets USP testing specifications

• Synonym(s): 1,4-Benzenediol, 1,4-Dihydroxybenzene, HQ
• Linear Formula: C₆H₄-1,4-(OH)₂
• CAS Number: 123-31-9
• Molecular Weight: 110.11
• Beilstein/REAXYS Number: 605970
• EC Number: 204-617-8
• MDL number: MFCD00002339
• UNSPSC Code: 41116107
• PubChem Substance ID: 24895587
• NACRES: NA.77

Properties

• agency: USP/NF; meets USP testing specifications
• Quality Level: 200
• vapor density: 3.81 (vs air)
• vapor pressure: 1 mmHg ( 132 °C)
• assay: 99.0-100.5% anhydrous basis
• autoignition temp.: 930 °F
• bp: 285 °C (lit.)
• mp: 172-175 °C (lit.)
• suitability: suitable for pesticide residue analysis
• application(s): pharmaceutical (small molecule)
• SMILES string: Oc1ccc(O)cc1
• InChI: 1S/C6H6O2/c7-5-1-2-6(8)4-3-5/h1-4,7-8H
• InChI key: QIGBRXMKCJKVMJ-UHFFFAOYSA-N

Safety Information

• pictograms: GHS08,GHS05,GHS07,GHS09
• signalword: Danger
• hcodes: H302,H317,H318,H341,H351,H410
• pcodes: P273 - P280 - P301 + P312 - P302 + P352 - P305 + P351 + P338 - P308 + P313
• Hazard Classifications: Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 2 - Eye Dam. 1 - Muta. 2 - Skin Sens. 1B
• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 3
• flash_point_f: 329.0 °F - closed cup
• flash_point_c: 165 °C - closed cup
• ppe: Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges