Skip to Content
Merck
All Photos(3)

Documents

H3660

Sigma-Aldrich

Hydroquinone

meets USP testing specifications

Synonym(s):

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

Sign Into View Organizational & Contract Pricing
All Photos(3)

About This Item

Linear Formula:
C6H4-1,4-(OH)2
CAS Number:
123-31-9
Molecular Weight:
110.11
Beilstein:
605970
EC Number:
204-617-8
MDL number:
MFCD00002339
UNSPSC Code:
41116107
PubChem Substance ID:
24895587
NACRES:
NA.77

Agency

USP/NF
meets USP testing specifications

Quality Level

200

vapor density

3.81 (vs air)

vapor pressure

1 mmHg ( 132 °C)

Assay

99.0-100.5% anhydrous basis

autoignition temp.

930 °F

bp

285 °C (lit.)

mp

172-175 °C (lit.)

suitability

suitable for pesticide residue analysis

application(s)

pharmaceutical (small molecule)

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

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

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
MKCT0821
MKCL9921
MKCL5274
MKCJ2274
MKCD6795

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

P Carbonnelle et al.
Toxicology and applied pharmacology, 132(2), 220-226 (1995-06-01)
Decreased interleukin-1 (IL-1) production by mononuclear phagocytes has been shown to contribute to benzene myelotoxicity in animals. The study presented here was designed to examine the relevance of this mechanism in humans. Fresh human blood monocytes were exposed to 0.001-10
Nuan P Cheah et al.
Toxicology in vitro : an international journal published in association with BIBRA, 27(3), 1072-1081 (2013-02-19)
Tobacco smoke consists of thousands of harmful components. A major class of chemicals found in tobacco smoke is formed by aldehydes, in particular formaldehyde, acetaldehyde and acrolein. The present study investigates the gene expression changes in human lung alveolar epithelial
Anna Gulkowska et al.
Chemosphere, 107, 366-372 (2014-01-28)
Soil incubation experiments using (14)C-labelled sulfamethazine were carried out to assess the factors governing its nonextractable residue (NER) formation via nucleophilic addition reactions. Circumstantial evidence on possible mechanisms of NER formation was derived from a selective manipulation of soil samples.
Yaqi Hu et al.
Biosensors & bioelectronics, 47, 45-49 (2013-04-03)
A novel light "on-off" photoelectrochemical sensing for the sensitive determination of hydroquinone was developed based on the porphyrin-functionalized Au nanoparticles on graphene (porphyrin/AuNPs/graphene). Gold nanoparticles (AuNPs) were firstly modified onto graphene sheets using NaBH4 as reductant and the porphyrin/AuNPs/graphene nanocomposites
Xiaoyun Lin et al.
Analytica chimica acta, 765, 54-62 (2013-02-16)
Electrochemical behavior of three antioxidants: butylated hydroxyanisole (BHA), butylated hydroxytoluene (BHT) and butylated hydroquinone (TBHQ), was investigated at a glassy carbon electrode modified with gold nanoparticles (AuNPs/GCE). This electrode was characterized by scanning electron microscopy (SEM). The experimental results indicated
View All Related Papers

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