Home Categories Organic Chemistry 1,4-Dihydroxyanthraquinone
A3143312

1,4-Dihydroxyanthraquinone , 96% , 81-64-1

Synonym(s):
1,4-Dihydroxyanthraquinone;Quinizarin

CAS NO.:81-64-1

Empirical Formula: C14H8O4

Molecular Weight: 240.21

MDL number: MFCD00001209

EINECS: 201-368-7

Pack Size Price Stock Quantity
25G RMB23.20 In Stock
100G RMB64.00 In Stock
250g RMB111.20 In Stock
500G RMB206.40 In Stock
2.5KG RMB835.20 In Stock
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Update time: 2022-07-08

PRODUCT Properties

Melting point: 195-200 °C
Boiling point: 450 °C
bulk density 350kg/m3
Density  1.3032 (rough estimate)
vapor density  8.3 (vs air)
vapor pressure  1 mm Hg ( 196.7 °C)
refractive index  1.5430 (estimate)
Flash point: 222 °C
storage temp.  Store below +30°C.
solubility  <1g/l
pka pK (18°) 9.51
Colour Index  58050
form  powder
color  red-brown
Water Solubility  <1 g/L (20 ºC)
Merck  14,8064
BRN  1914036
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
InChIKey GUEIZVNYDFNHJU-UHFFFAOYSA-N
SMILES Oc1ccc(O)c2C(=O)c3ccccc3C(=O)c12
LogP 4.2 at 25℃
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)

Description and Uses

1,4-Dihydroxyanthraquinone, also known as quinizarin, is of great importance in manufacturing disperse, acid, and vat dyes.

Safety

Symbol(GHS) 
GHS09
Signal word  Warning
Hazard statements  H410
Precautionary statements  P273
PPE Eyeshields, Faceshields, Gloves, type N95 (US)
Hazard Codes  Xi,N
Risk Statements  36/37/38-43-50/53
Safety Statements  22-24/25-36/37-26-61-60
RIDADR  UN 3077 9 / PGIII
WGK Germany  2
RTECS  CB6600000
TSCA  TSCA listed
HS Code  2914 69 80
PackingGroup  III
Storage Class 13 - Non Combustible Solids
Hazard Classifications Aquatic Acute 1
Aquatic Chronic 1
Hazardous Substances Data 81-64-1(Hazardous Substances Data)
Toxicity LD50 orally in Rabbit: > 5000 mg/kg

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