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About This Item
Linear Formula:
C6H4-1,4-(OH)2
CAS Number:
Molecular Weight:
110.11
UNSPSC Code:
41116107
NACRES:
NA.24
PubChem Substance ID:
MDL number:
Beilstein/REAXYS Number:
605970
grade
pharmaceutical primary standard
vapor density
3.81 (vs air)
vapor pressure
1 mmHg ( 132 °C)
API family
hydroquinone
autoignition temp.
930 °F
manufacturer/tradename
USP
bp
285 °C (lit.)
mp
172-175 °C (lit.)
application(s)
pharmaceutical (small molecule)
format
neat
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
General description
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 issuing Pharmacopoeia.For further information and support please go to the website of the issuing Pharmacopoeia.
Application
Hydroquinone USP reference standard, intended for use in specified quality tests and assays as specified in the USP compendia.
Also, for use with USP monographs such as:
Also, for use with USP monographs such as:
- Hydroquinone Cream
- Hydroquinone Topical Solution
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.
Other Notes
Sales restrictions may apply.
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Danger
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
flash_point_f
329.0 °F - closed cup
flash_point_c
165 °C - closed cup
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Jacob Levitt
Journal of the American Academy of Dermatology, 57(5), 854-872 (2007-05-01)
Recently, the US Food and Drug Administration proposed a ban on over-the-counter hydroquinone mainly on the basis of high absorption, reports of exogenous ochronosis in humans, and murine hepatic adenomas, renal adenomas, and leukemia with large doses over extended time
J J Nordlund et al.
Journal of the European Academy of Dermatology and Venereology : JEADV, 20(7), 781-787 (2006-08-11)
Hydroquinone is one of the most effective molecules for the treatment of hyperpigmentary disorders, with over 40 years of efficacy and safety data. Concerns over its safety have been raised because of the fact that it is a derivative of
Mekhala Chandra et al.
Acta dermato-venereologica, 92(3), 232-235 (2011-10-18)
Post-inflammatory hyperpigmentation after acne can be as troublesome as the acne itself. Hydroquinone, a tyrosinase inhibitor, in a 4% cream can be used safely twice daily for up to 6 months to treat post-inflammatory hyperpigmentation. The efficacy of this treatment