Skip to Content
Merck
CN

Key Documents

View All Documentation

13-1930

Hydroquinone

JIS special grade, ≥99.0%

Synonym(s):

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

Sign In to View Organizational & Contract Pricing.

Select a Size

Change View

About This Item

Linear Formula:
C6H4-1,4-(OH)2
CAS Number:
123-31-9
Molecular Weight:
110.11
EC Number:
204-617-8
UNSPSC Code:
12352002
PubChem Substance ID:
329750095
Beilstein/REAXYS Number:
605970
MDL number:
MFCD00002339
Assay:
≥99.0%
Grade:
JIS special grade
Bp:
285 °C (lit.)
Vapor pressure:
1 mmHg ( 132 °C)
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

grade

JIS special grade

vapor density

3.81 (vs air)

vapor pressure

1 mmHg ( 132 °C)

assay

≥99.0%

form

crystalline

autoignition temp.

930 °F

availability

available only in Japan

dilution

(for analytical testing)

pH

3.7 (70 g/L)

bp

285 °C (lit.)

mp

172-175 °C (lit.)

solubility

water: soluble 50 g/L

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

Still not finding the right product?

Explore all of our products under Hydroquinone

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

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

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

It looks like we've run into a problem, but you can still download Certificates of Analysis from our Documents section.

If you need assistance, please contact Customer Support

Already Own This Product?

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

Visit the Document Library