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8.20259

Sigma-Aldrich

1,4-Dihydroxyanthraquinone

for synthesis

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Synonym(s):
1,4-Dihydroxyanthraquinone, Quinizarin
Empirical Formula (Hill Notation):
C14H8O4
CAS Number:
Molecular Weight:
240.21
MDL number:
EC Index Number:
201-368-7

vapor pressure

1.3 hPa ( 197 °C)

Quality Level

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

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This Item
340014A89502263567
1,4-Dihydroxyanthraquinone for synthesis

8.20259

1,4-Dihydroxyanthraquinone

Anthrarufin technical grade, 85%

340014

Anthrarufin

Anthraflavic acid technical grade, 90%

A89502

Anthraflavic acid

1,4-Bis(trimethylsilyl)butadiyne 98%, stable crystalline form of butadiyne

263567

1,4-Bis(trimethylsilyl)butadiyne

Quality Level

200

Quality Level

-

Quality Level

100

Quality Level

-

mp

195-198 °C

mp

279 °C (dec.) (lit.)

mp

>320 °C (lit.)

mp

111-113 °C (lit.)

storage temp.

2-30°C

storage temp.

-

storage temp.

-

storage temp.

2-8°C

form

powder

form

solid

form

powder

form

solid

bp

450 °C/1013 hPa

bp

-

bp

-

bp

-

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

signalword

Warning

hcodes

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


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