1,4-Benzoquinone
USP/1056504 - United States Pharmacopeia (USP) Reference Standard
Synonym: p-Benzoquinone; ,5-
CAS Number: 106-51-4
Empirical Formula (Hill Notation): C6H4O2
Molecular Weight: 108.09
MDL Number: MFCD00001591
Linear Formula: C6H4(=O)2
Product Type: Chemical
| application(s) | pharmaceutical (small molecule) |
| autoignition temp. | 815 °F |
| format | neat |
| grade | pharmaceutical primary standard |
| InChI | 1S/C6H4O2/c7-5-1-2-6(8)4- |
| InChI key | AZQWKYJCGOJGHM-UHFFFAOYSA |
| manufacturer/tradename | USP |
| mp | 113-115 °C (lit.) |
| SMILES string | O=C1C=CC(=O)C=C1 |
| vapor density | 3.73 (vs air) |
| vapor pressure | 0.1 mmHg ( 25 °C) |
| Analysis Note: | These products are for test and assay use only. They are not meant for administration to humans or animals and cannot be used to diagnose, treat, or cure diseases of any kind. |
| Application: | The USP pharmaceutical reference standard is intended for use in analytical or laboratory applications as specified in USP compendia. Also ideal for use as a primary reference standard in the following tests or assays according to USP General Chapter <11>: • pure steam • water for injection • sterile water for inhalation • sterile water for injection • sterile water for irrigation • purified water • sterile purified water • water for hemodialysis • <643>total organic carbon |
| General description: | 1,4-Benzoquinone, also known as para-quinone, is a benzene derivative with cyclic dienedione structure. This product is provided as delivered and specified by the issuing Pharmacopoeia. All information provided in support of this product, including SDS and any product information leaflets, have been developed and issued under the Authority of the 1,4-Benzoquinone is a dark yellow powder having a green cast. It is slightly soluble in water and soluble in alcohol, in ether, and in fixed alkali solutions. It may darken on standing. |
| Other Notes: | Sales restrictions may apply. |
| Symbol |      GHS02,GHS05,GHS06,GHS08,GHS09 |
| Signal word | Danger |
| Hazard statements | H228 - H301 + H331 - H314 - H317 - H335 - H341 - H410 |
| Precautionary statements | P210 - P260 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338 |
| RIDADR | UN 2587 6.1 / PGII |
| WGK Germany | WGK 3 |
| Flash Point(F) | 170.6 °F - closed cup |
| Flash Point(C) | 77 °C - closed cup |
| mp | 113-115 °C (lit.) |
| UNSPSC | 41116107 |