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H9003

Hydroquinone

ReagentPlus®, ≥99%

Synonym(s):

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

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100 g

Available to ship TODAYfromMILWAUKEE

$40.50
500 g

Available to ship TODAYfromMILWAUKEE

$124.00
$105.40
1 kg

Available to ship TODAYfromMILWAUKEE

$171.00
$128.25

About This Item

Linear Formula:
C6H4-1,4-(OH)2
CAS Number:
123-31-9
Molecular Weight:
110.11
UNSPSC Code:
12352005
NACRES:
NA.77
PubChem Substance ID:
57654278
EC Number:
204-617-8
Beilstein/REAXYS Number:
605970
MDL number:
MFCD00002339

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biological source

synthetic

Quality Segment

200

vapor density

3.81 (vs air)

vapor pressure

1 mmHg ( 132 °C)

product line

ReagentPlus®

assay

≥99%

form

powder

autoignition temp.

930 °F

bp

285 °C (lit.)

mp

172-175 °C (lit.)

solubility

water: 50 mg/mL, clear

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

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.

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.

Legal Information

ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany

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This Item
H3660PHR1469452440
Hydroquinone ReagentPlus®, ≥99%

Sigma-Aldrich

H9003

Hydroquinone

Hydroquinone meets USP testing specifications

Sigma-Aldrich

H3660

Hydroquinone

Hydroquinone Pharmaceutical Secondary Standard; Certified Reference Material

Supelco

PHR1469

Hydroquinone

Hydroquinone-d6 98 atom % D, 99% (CP)

Sigma-Aldrich

452440

Hydroquinone-d6

description

ReagentPlus®, ≥99%

description

meets USP testing specifications

description

Pharmaceutical Secondary Standard; Certified Reference Material

description

98 atom % D, 99% (CP)

assay

≥99%

assay

99.0-100.5% anhydrous basis

assay

-

assay

99% (CP)

biological source

synthetic

biological source

-

biological source

-

biological source

-

Quality Level

200

Quality Level

200

Quality Level

300

Quality Level

200

form

powder

form

-

form

-

form

solid

solubility

water: 50 mg/mL, clear

solubility

-

solubility

-

solubility

-

mp

172-175 °C (lit.)

mp

172-175 °C (lit.)

mp

172-175 °C (lit.)

mp

174-177 °C (lit.)

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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

ppe

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

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Questions

1–2 of 2 Questions  

  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

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