MilliporeSigma
All Photos(1)

1.04610

Sigma-Aldrich

Hydroquinone

Technipur®

Sign Into View Organizational & Contract Pricing

Select a Size

Synonym(s):
1,4-Benzenediol, 1,4-Dihydroxybenzene, 4-Hydroxyphenol, p-Benzenediol, p-Dihydroxybenzene, p-Hydroquinone, p-Hydroxyphenol, Benzoquinol, Quinol, HQ
Linear Formula:
C6H4-1,4-(OH)2
CAS Number:
Molecular Weight:
110.11
Beilstein:
605970
MDL number:

vapor density

3.81 (vs air)

Quality Level

vapor pressure

1 mmHg ( 132 °C)

autoignition temp.

930 °F

bp

285 °C (lit.)

mp

172-175 °C (lit.)

density

1.358 g/cm3 at 20 °C

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

Looking for similar products? Visit Product Comparison Guide

Compare Similar Items

View Full Comparison

Show Differences

1 of 4

This Item
H17902H900374347
Hydroquinone Technipur®

Sigma-Aldrich

1.04610

Hydroquinone

Hydroquinone ReagentPlus®, 99%

Sigma-Aldrich

H17902

Hydroquinone

Hydroquinone ReagentPlus®, ≥99%

Sigma-Aldrich

H9003

Hydroquinone

Hydroquinone certified reference material, TraceCERT®, Manufactured by: Sigma-Aldrich Production GmbH, Switzerland

Supelco

74347

Hydroquinone

vapor pressure

1 mmHg ( 132 °C)

vapor pressure

1 mmHg ( 132 °C)

vapor pressure

1 mmHg ( 132 °C)

vapor pressure

1 mmHg ( 132 °C)

autoignition temp.

930 °F

autoignition temp.

930 °F

autoignition temp.

930 °F

autoignition temp.

930 °F

bp

285 °C (lit.)

bp

285 °C (lit.)

bp

285 °C (lit.)

bp

285 °C (lit.)

mp

172-175 °C (lit.)

mp

171-175 °C, 172-175 °C (lit.)

mp

172-175 °C (lit.)

mp

172-175 °C (lit.)

density

1.358 g/cm3 at 20 °C

density

-

density

-

density

-

Application

Hydroquinone can be used as:
  • A reducing agent in the preparation of silver sols, gold nanoparticles and nanorods for material science applications.(1)(2)(3)
  • A polymerization inhibitor in the synthesis of industrially important 4-vinylphenols via decarboxylation of 4-hydroxycinnamic acids.(4)
  • A phase change material (PCM) applicable in solar cooling refrigeration technology.(5)

Legal Information

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

Signal Word

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 Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

329.0 °F - closed cup

Flash Point(C)

165 °C - closed cup


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Documents related to the products that you have purchased in the past have been gathered in the Document Library for your convenience.

Visit the Document Library

Difficulty Finding Your Product Or Lot/Batch Number?

Product numbers are combined with Pack Sizes/Quantity when displayed on the website (example: T1503-25G). Please make sure you enter ONLY the product number in the Product Number field (example: T1503).

Example:

T1503
Product Number
-
25G
Pack Size/Quantity

Additional examples:

705578-5MG-PW

PL860-CGA/SHF-1EA

MMYOMAG-74K-13

1000309185

enter as 1.000309185)

Having trouble? Feel free to contact Technical Service for assistance.

Lot and Batch Numbers can be found on a product's label following the words 'Lot' or 'Batch'.

Aldrich Products

  • For a lot number such as TO09019TO, enter it as 09019TO (without the first two letters 'TO').

  • For a lot number with a filling-code such as 05427ES-021, enter it as 05427ES (without the filling-code '-021').

  • For a lot number with a filling-code such as STBB0728K9, enter it as STBB0728 without the filling-code 'K9'.

Not Finding What You Are Looking For?

In some cases, a COA may not be available online. If your search was unable to find the COA you can request one.

Request COA

Controlled particle growth of silver sols through the use of hydroquinone as a selective reducing agent
Gentry ST, et al.
Langmuir, 25(5), 2613-2621 (2009)
Experimental analysis of hydroquinone used as phase change material (PCM) to be applied in solar cooling refrigeration
Gil A, et al.
International Journal of Refrigeration, 39, 95-103 (2014)
Obtaining 4-vinylphenols by decarboxylation of natural 4-hydroxycinnamic acids under microwave irradiation
Bernini R, et al.
Tetrahedron, 63(39), 9663-9667 (2007)
High-yield synthesis of gold nanorods with longitudinal SPR peak greater than 1200 nm using hydroquinone as a reducing agent
Vigderman L and Zubarev ER
Chemistry of Materials, 25(8), 1450-1457 (2013)
The formation of gold nanoparticles using hydroquinone as a reducing agent through a localized pH change upon addition of NaOH to a solution of HAuCl4
Mechler A, et al.
Colloids and Surfaces. A, Physicochemical and Engineering Aspects, 370(1-3), 35-41 (2010)

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service