Hydroquinone
SIAL/74347 - certified reference material, TraceCERT®, Manufactured by: Sigma-Aldrich Production GmbH, Switzerland
Synonym: 1,4-Benzenediol; 1,4-Dihydroxybenzene; HQ
CAS Number: 123-31-9
Empirical Formula (Hill Notation): C6H6O2
Molecular Weight: 110.11
EC Number: 204-617-8
MDL Number: MFCD00002339
Linear Formula: C6H4-1,4-(OH)2
Product Type: Chemical
| application(s) | cleaning products cosmetics food and beverages personal care |
| autoignition temp. | 930 °F |
| bp | 285 °C (lit.) |
| format | neat |
| grade | TraceCERT® |
| certified reference material | |
| InChI | 1S/C6H6O2/c7-5-1-2-6(8)4- |
| InChI key | QIGBRXMKCJKVMJ-UHFFFAOYSA |
| manufacturer/tradename | Manufactured by: Sigma-Aldrich Production GmbH, Switzerland |
| mp | 172-175 °C (lit.) |
| product line | TraceCERT® |
| Quality Level | 300  |
| shelf life | limited shelf life, expiry date on the label |
| SMILES string | Oc1ccc(O)cc1 |
| technique(s) | gas chromatography (GC): suitable |
| HPLC: suitable | |
| vapor density | 3.81 (vs air) |
| vapor pressure | 1 mmHg ( 132 °C) |
| Application: | Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support. |
| General description: | This certified reference material (CRM) is produced and certified in accordance with ISO/IEC 17025 and ISO 17034. This CRM is traceable to primary material from an NMI, e.g. NIST or NMIJ. Certified content by quantitative NMR incl. uncertainty and expiry date are given on the certificate. Download your certificate at: http://www.sigma-aldrich. |
| General description: | This substance is listed on the positive list of the EU regulation 10/2011 for plastics intended to come into contact with food. Find all available reference materials for compounds listed in 10/2011 here |
| Legal Information: | TraceCERT is a registered trademark of Merck KGaA, Darmstadt, Germany |
| Packaging: | Bottomless glass bottle. Contents are inside inserted fused cone. |
| Symbol |     GHS05,GHS07,GHS08,GHS09 |
| Signal word | Danger |
| Hazard statements | H302 - H318 - H341 - H351 - H410 |
| Precautionary statements | P202 - P273 - P280 - P301 + P312 - P305 + P351 + P338 - P308 + P313 |
| Hazard Codes | Xn,N |
| Risk Statements | 22-40-41-43-50-68 |
| Safety Statements | 26-36/37/39-61 |
| RIDADR | UN 3077 9 / PGIII |
| WGK Germany | WGK 3 |
| Flash Point(F) | 329.0 °F - closed cup |
| Flash Point(C) | 165 °C - closed cup |
| bp | 285 °C (lit.) |
| mp | 172-175 °C (lit.) |
| UNSPSC | 41116107 |