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1,4-Dihydroxyanthraquinone CAS 81-64-1

DSD ACID;CI NO 58050;CI 58050;LABOTEST-BB LT00052844;1,4-dihydroxy-10-anthracenedione;1,4-dihydroxy-9,10(9H,10H)anthracenedione;1,4-Dihydroxy-9,10-anthraquinone;1,4-Dihydroxyanthra-9,10-quinone
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  • 81-64-1

  • bosschem

  • 81-64-1

1,4-Dihydroxyanthraquinone Basic information
Product Name: 1,4-Dihydroxyanthraquinone
CAS: 81-64-1
MF: C14H8O4
MW: 240.21
EINECS: 201-368-7
1,4-Dihydroxyanthraquinone Chemical Properties
Melting point 198-199 °C(lit.)
Boiling point 450 °C
density 1.3032 (rough estimate)
vapor density 8.3 (vs air)
vapor pressure 1 mm Hg ( 196.7 °C)
refractive index 1.5430 (estimate)
Fp 222 °C
storage temp. Store below +30°C.
solubility <1g/l
form powder
pka pK (18°) 9.51
Colour Index 58,050
color red-brown
Water Solubility <1 g/L (20 ºC)
Merck 148,064
BRN 1914036
InChIKey GUEIZVNYDFNHJU-UHFFFAOYSA-N
CAS DataBase Reference 81-64-1(CAS DataBase Reference)
NIST Chemistry Reference 9,10-Anthracenedione, 1,4-dihydroxy-(81-64-1)
EPA Substance Registry System Quinizarin (81-64-1)

COA

Appearance Bright orange
Moisture ≤0.10%
Melting point ≥198°C
Te intolerance ≤0.3%
Content ≥99%
PH 5-7

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