Hydroquinone
SIAL/H9003 - ReagentPlus®, ≥99%
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
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material.
This image depicts SKU: H9003-100G
This image depicts SKU: H9003-100G
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: H9003-1KG
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material.
This image depicts SKU: H9003-500G
This image depicts SKU: H9003-500G
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: H9003-500G
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material.
This image depicts SKU: H9003-1KG
This image depicts SKU: H9003-1KG
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: H9003-100G
| assay | ≥99% |
| autoignition temp. | 930 °F |
| biological source | synthetic |
| bp | 285 °C (lit.) |
| form | powder |
| InChI | 1S/C6H6O2/c7-5-1-2-6(8)4- |
| InChI key | QIGBRXMKCJKVMJ-UHFFFAOYSA |
| mp | 172-175 °C (lit.) |
| product line | ReagentPlus® |
| Quality Level | 200  |
| SMILES string | Oc1ccc(O)cc1 |
| solubility | water: 50 mg/mL, clear |
| vapor density | 3.81 (vs air) |
| vapor pressure | 1 mmHg ( 132 °C) |
| Application: | Hydroquinone has been used as reagent for the conversion of DNA by sodium bisulfite. It has also been used as a chemical in Timm′s staining. |
| General description: | Hydroquinone is a phenolic compound, which is naturally found in coffee, tea and wine. It is used in photographic, chemical and cosmetic industries. Hydroquinone is used as a skin lightening agent. It is topically applied to treat melisma, freckles and senile lentigines. Hydroquinone is linked to exogenous ochronosis, dermatitis and skin irritation. It inhibits melanogenesis. |
| Legal Information: | ReagentPlus is a registered trademark of Sigma-Aldrich Co. LLC |
| Packaging: | 1 kg in poly bottle |
| Packaging: | 100, 500 g in poly bottle |
| Symbol |     GHS05,GHS07,GHS08,GHS09 |
| Signal word | Danger |
| Hazard statements | H302 - H317 - H318 - H341 - H351 - H410 |
| Precautionary statements | P273 - P280 - P301 + P312 - P302 + P352 - 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 |
| Purity | ≥99% |
| bp | 285 °C (lit.) |
| mp | 172-175 °C (lit.) |
| UNSPSC | 12352200 |