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EINECS 200-782-5
CAS No. 72-48-0 Density 1.54 g/cm3
PSA 74.60000 LogP 1.87320
Solubility Soluble in hexane and chloroform. Slightly soluble in water. Melting Point 287 °C
Formula C14H8O4 Boiling Point 430 °C at 760 mmHg
Molecular Weight 240.22 Flash Point 228 °C
Transport Information Appearance orange-red crystals or powder
Safety 26-36-24/25-22 Risk Codes 36/38-36/37/38
Molecular Structure Molecular Structure of 72-48-0 (1,2-Dihydroxy-9,10-anthracenedione) Hazard Symbols IrritantXi

Alizarin B(6CI);Anthraquinone, 1,2-dihydroxy- (8CI);1,2-Anthraquinonediol;1,2-Dihydroxy-9,10-anthracenedione;Acid Metachrome Red B;Acid Mordant Red B;Alizarin;Alizarin Red;Alizarina;Alizarine;Alizarine 3B;Alizarine B;Alizarine Indicator;Alizarine L Paste;Alizarine Lake Red 2P;Alizarine LakeRed 3P;Alizarine NAC;Alizarine Paste 20 percentBluish;Alizarine Red B;Alizarine Red B2;Alizarine Red L;C Ext. Red 62;C.I. 58000;C.I. Mordant Red11;D And C Orange Number 15;Mitsui Alizarine B;NSC 7212;Qiansu;Turkey red;


1,2-Dihydroxy-9,10-anthracenedione Chemical Properties



Empirical Formula: C14H8O4
Molecular Weight: 240.2109 
EINECS: 200-782-5
Index of Refraction: 1.732
Molar Refractivity: 62.43 cm3
Molar Volume: 155.9 cm3
Surface Tension: 79.2 dyne/cm
Density: 1.54 g/cm3
Flash Point: 228 °C
Enthalpy of Vaporization: 71.19 kJ/mol
Boiling Point: 430 °C at 760 mmHg
Vapour Pressure: 5.34E-08 mmHg at 25 °C
Melting point: 287 °C
Appearance: Orange-red crystals or powder
Structure of 1,2-Dihydroxy-9,10-anthracenedione (CAS NO.72-48-0):
IUPAC Name: 1,2-Dihydroxyanthracene-9,10-dione
Canonical SMILES: C1=CC=C2C(=C1)C(=O)C3=C(C2=O)C(=C(C=C3)O)O
InChI: InChI=1S/C14H8O4/c15-10-6-5-9-11(14(10)18)13(17)8-4-2-1-3-7(8)12(9)16/h1-6,15,18H
Product Category of 1,2-Dihydroxy-9,10-anthracenedione (CAS NO.72-48-0): Intermediates of Dyes and Pigments;Anthraquinones, Hydroquinones and Quinones;Hydroxyanthraquinones

1,2-Dihydroxy-9,10-anthracenedione Uses

 1,2-Dihydroxy-9,10-anthracenedione (CAS NO.72-48-0) can be used as dye intermediates and  acid-base indicator.

1,2-Dihydroxy-9,10-anthracenedione Toxicity Data With Reference


eye-rbt 500 mg/24H MLD

    28ZPAK    Sbornik Vysledku Toxixologickeho Vysetreni Latek A Pripravku Marhold, J.V.,Institut Pro Vychovu Vedoucicn Pracovniku Chemickeho Prumyclu Praha,Czechoslovakia.: 1972,101.

mmo-sat 100 µg/plate

    MUREAV    Mutation Research. 40 (1976),203.

mma-sat 100 µg/plate

    MUREAV    Mutation Research. 40 (1976),203.

dnr-bcs 2 mg/disc

    TRENAF    Kenkyu Nenpo-Tokyo-toritsu Eisei Kenkyusho. Annual Report of Tokyo Metropolitan Research Laboratory of Public Health. 27 (1976),153.

orl-bwd LD50:316 mg/kg

    AECTCV    Archives of Environmental Contamination and Toxicology. 12 (1983),355.

1,2-Dihydroxy-9,10-anthracenedione Consensus Reports

Reported in EPA TSCA Inventory. EPA Genetic Toxicology Program.

1,2-Dihydroxy-9,10-anthracenedione Safety Profile

Poison by ingestion. Mutation data reported. An eye irritant. Flammable when exposed to oxidizers and heat. When heated to decomposition it emits acrid smoke and irritating fumes.
Hazard symbols: Xi.
Risk statements: 36/38-36/37/38.
36/38:  Irritating to eyes and skin.
36/37/38:  Irritating to eyes, respiratory system and skin.    
Safety statements: 26-36-24/25-22.
26:  In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
36:  Wear suitable protective clothing.
22:  Do not breathe dust.      
24/25:  Avoid contact with skin and eyes.

1,2-Dihydroxy-9,10-anthracenedione Specification

 1,2-Dihydroxy-9,10-anthracenedione , its cas register number is 72-48-0. It also can be called C.I. 58000 ; Mordant Red 11 ; 1,2-Dihydroxyanthraquinone ; Alizarin Red ; Dihydroxy-9,10-anthracenedione ; and 1,2-Dihydroxy anthraquinone . It is hazardous, so the first aid measures and others should be known. Such as: When on the skin: first, should flush skin with plenty of water immediately for at least 15 minutes while removing contaminated clothing. Secondly, get medical aid. Or in the eyes: Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Then get medical aid soon. While, it's inhaled: Remove from exposure and move to fresh air immediately. Give artificial respiration while not breathing. When breathing is difficult, give oxygen. And as soon as to get medical aid. Then you have the ingesting of the product: Wash mouth out with water, and get medical aid immediately. Notes to physician: Treat supportively and symptomatically.
In addition, 1,2-Dihydroxy-9,10-anthracenedione (CAS NO.72-48-0) could be stable under normal temperatures and pressures. It is not compatible with strong oxidizing agents, and you must not take it with incompatible materials. And also prevent it to broken down into hazardous decomposition products: Carbon monoxide, carbon dioxide.

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