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Merck

1324002

USP

Hydroquinone

United States Pharmacopeia (USP) Reference Standard

Sinónimos:

1,4-Benzenediol, 1,4-Dihydroxybenzene, HQ

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About This Item

Fórmula lineal:
C6H4-1,4-(OH)2
Número de CAS:
Peso molecular:
110.11
Beilstein/REAXYS Number:
605970
MDL number:
UNSPSC Code:
41116107
PubChem Substance ID:
NACRES:
NA.24

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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

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Este artículo
GF16609057GF64187792GF36594838
Alumina foam, thickness 12.7 mm, diameter 38 mm, porosity 0.86

GF95382771

Alumina

Alumina foam, thickness 7 mm, size 50 × 50 mm, porosity 0.86

GF16609057

Alumina

Alumina foam, thickness 12.7 mm, size 100 × 100 mm, porosity 0.86

GF64187792

Alumina

Alumina foam, thickness 12.7 mm, size 100 × 100 mm, porosity 0.84

GF36594838

Alumina

diam.

38 mm

diam.

-

diam.

-

diam.

-

thickness

12.7 mm

thickness

7 mm

thickness

12.7 mm

thickness

12.7 mm

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:
  • 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.

related product

Referencia del producto
Descripción
Precios

signalword

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

wgk_germany

WGK 3

flash_point_f

329.0 °F - closed cup

flash_point_c

165 °C - closed cup


  • Certificados de análisis (COA)

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    Visite la Librería de documentos

    A P DeCaprio
    Critical reviews in toxicology, 29(3), 283-330 (1999-06-24)
    Hydroquinone (HQ) is a high-volume commodity chemical used as a reducing agent, antioxidant, polymerization inhibitor, and chemical intermediate. It is also used in over-the-counter (OTC) drugs as an ingredient in skin lighteners and is a natural ingredient in many plant-derived
    Changming Chen et al.
    Plant physiology, 166(1), 370-383 (2014-07-23)
    A seed's ability to properly germinate largely depends on its oxidative poise. The level of reactive oxygen species (ROS) in Arabidopsis (Arabidopsis thaliana) is controlled by a large gene network, which includes the gene coding for the hydrogen peroxide-scavenging enzyme
    Douglas McGregor
    Critical reviews in toxicology, 37(10), 887-914 (2007-11-21)
    The toxicology of hydroquinone has been reviewed on a number of previous occasions. This review targets its potential for carcinogenicity and possible modes of carcinogenic action. The evaluation made by IARC (1999) of its carcinogenic risk to humans was that
    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
    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

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