Specification
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Concerning Product: |
| Article number | 123319BUGMP |
| Trade name / designation / denomination | Hydroquinone USP, GMP |
| CAS number | 123-31-9 |
| Other names / synonyms | •1,4-dihydroxybenzene;
•Benzene-1,4-diol;
•HYDROQUINONE;
•Hydroquinone;
•Hydroquinone, Crystal;
•Hydroquinone, USP;
•Hydroquinone-d4-(ring-d4);
•Hydroquinone;Quinol;
•Quinol;
•benzene-1,4-diol; |
| EC number | 204-617-8 |
| EC index number | 604-005-00-4 |
| Customs tariff number / CN code / TARIC | 29072200 |
| Molecular weight [g / mol] | 110,11 |
| Formula | C6H6O2 |
Danger
3077, 9 (Verschiedene gefährliche Stoffe und Gegenstände), III<... neuer Inhalt ...> |
Harmful if swallowed. May cause an allergic skin reaction. Causes serious eye damage. Suspected of causing genetic defects . Suspected of causing cancer . Very toxic to aquatic life.
Avoid release to the environment. Wear protective gloves/protective clothing/eye protection/face protection. IF IN EYES: IF exposed or concerned: Get medical advice/attention. Remove contact lenses, if present and easy to do. Continue rinsing. Rinse cautiously with water for several minutes. Wash with plenty of soap and water. |
| Parameter |
Specification |
Unit |
Organoleptic test |
| Appearance |
fine, crystalline powder |
| Colour |
colorless to white |
Physical parameter |
| Loss on drying |
≤ 0.5 |
% |
| Melting range |
172 – 174 |
°C |
| Solubility |
soluble in water, alcohol and ether |
Identity |
| Assay |
(calc. on anhydous basis) 99.0 – 100.5 |
% |
| Identification |
C (UV): 293 -2nm |
| Identification |
A (IR): corresponds to standard |
| Identification |
B (TLC): corresponds to standard |
Impurities |
| Residue on ignition |
≤ 0.5 |
% |
Residual Solvents |
| Residual solvents |
Benzene ≤ 2 |
ppm |
| Residual solvents |
Ethanol: ≤ 5000 |
ppm |
| Residual solvents |
Methylenechloride: ≤ 600 |
ppm |
| Residual solvents |
Methylisobutyketone ≤ 5000 |
ppm |
Chemische Werke Hommel GmbH & Co.KG
This document was generated electronically and is valid without signature.
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Waltrop, 30. Oct. 2019
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We only confirm that we took over the data from our supplier accordingly. Despite careful working, errors in the
takeover are not totally excluded. Some or all parts off the document may be translated due to our best knowledge from the original
to give a better understanding. If you have any questions about specific details, please call us directly. Unless otherwise marked,
these data do not originate from us and have not been tested by us on the correctness. The above information corresponds to the present state of our
knowledge and is intended as a general description of our products and their possible applications. We make no warranties, expressed
or implied, as to the information's accuracy, adequacy, sufficiency or freedom from defect and assumes no liability in connection with any
use of this information. Any user of this product is responsible for determining the suitability of our products for its particular application.
The foregoing information does not absolve the buyer of its own tests. Observing existing laws and regulations, is the responsibility of the buyer of our product.
Nothing included in this information waives any of our General Terms and Conditions of Sale, which control unless it agrees other in
writing. Any existing intellectual/industrial property rights must be observed. Due to possible changes in our products and applicable
national and international regulations and laws, the status of our products could change. Material Safety Data Sheets providing safety
precautions, that should be observed when handling or storing our products, are available upon request and are provided in compliance
with applicable law. The user should obtain and review the applicable Material Safety Data Sheet information before handling any of
these products. For additional information, please contact us.
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