Skip to Content
MilliporeSigma
All Photos(1)

Key Documents

8.20259

Sigma-Aldrich

1,4-Dihydroxyanthraquinone

for synthesis

Synonym(s):

1,4-Dihydroxyanthraquinone, Quinizarin

Sign Into View Organizational & Contract Pricing
All Photos(1)

About This Item

Empirical Formula (Hill Notation):
C14H8O4
CAS Number:
81-64-1
Molecular Weight:
240.21
MDL number:
MFCD00001209
UNSPSC Code:
12352115
EC Index Number:
201-368-7
NACRES:
NA.22

vapor pressure

1.3 hPa ( 197 °C)

Quality Level

200

assay

≥97.0% (acidimetric)

form

powder

potency

>5000 mg/kg LD50, oral (Rat)

bp

450 °C/1013 hPa

mp

195-198 °C

transition temp

flash point 222 °C

bulk density

350 kg/m3

storage temp.

2-30°C

InChI

1S/C14H8O4/c15-9-5-6-10(16)12-11(9)13(17)7-3-1-2-4-8(7)14(12)18/h1-6,15-16H

InChI key

GUEIZVNYDFNHJU-UHFFFAOYSA-N

Application

1,4-Dihydroxyanthraquinone for synthesis. CAS 81-64-1, molar mass 240.21 g/mol.

Analysis Note

Assay (acidimetric): ≥ 97.0 %
Melting range (lower value): ≥ 195 °C
Melting range (upper value): ≤ 198 °C
Identity (IR): passes test

pictograms

Environment
GHS09

signalword

Warning

hcodes

H410

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 1

Storage Class

13 - Non Combustible Solids

wgk_germany

WGK 2

flash_point_f

431.6 °F

flash_point_c

222 °C

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?

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

Visit the Document Library

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