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Chemical Properties

CAS Registry Number: 117-10-2

Selected information from two of the National Library of Medicine's databases: ChemIDPlus2 and HSDB3.

Names 1

  • 9,10-Anthracenedione, 1,8-Dihydroxy-
  • Antrapurol
  • Danthron


Chemical Structure for Chemical Abstracts Service Registry Number 117-10-2 from NLM

Synonyms (Sources: NTP,HSDB,RTECS,MESH)2

  • 1,4,5,8-Tetroxyantraquinone
  • 1,8-Dihydroxy-9,10-anthracenedione
  • 1,8-Dihydroxyanthrachinon [Czech]
  • 1,8-Dihydroxyanthraquinone
  • Altan
  • Antrapurol
  • Chrysazin
  • Diaquone
  • Dionone
  • Dorbane
  • Duolax
  • HSDB 7764
  • Istizin
  • Laxanorm
  • Laxanthreen
  • Laxipurin
  • Modane
  • Neokutin S
  • Pastomin
  • Prugol
  • Roydan
  • Scatron D
  • USAF ND-59
  • Zwitsalax

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Other Registry Numbers2

  • 32073-07-7
  • 343235-40-5

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Chemical Properties3

Property Description
Boiling Point
  • Sublimes
  • Orange needles from alcohol
  • Orange powder or reddish-brown needles
  • Red or red-yellow needles or leaves (from alcohol)
  • None Found
Critical Temperature & Pressure
  • None Found
Density/Specific Gravity
  • None Found
Dissociation Constants
  • pKa1 = 8.45 (phenol); pKa2 = 10.85 (phenol) (est)
Heat Of Combustion
  • None Found
Heat Of Vaporization
  • None Found
Melting Point
  • 193 deg C
Molecular Weight
  • 240.212
  • None Found
Other Chemical/Physical Properties
  • Henry's Law constant = 5.5X10-11 atm-cu m/mol at 25 deg C (est)
  • Hydroxyl radical reaction rate constant = 2.6X10-11 cu cm/molec-sec at 25 deg C (est)
  • When heated to decomposition it emits acrid smoke and irritating fumes
Relative Evaporation Rate
  • None Found
  • Almost insoluble in water (6.5X10-6 mols/L at 25 deg C), in alcohol (1:2000). Moderately soluble in ether (1:500), in chloroform; soluble in 10 parts hot glacial acetic acid. Very slightly soluble in aqueous solutions of alkali hydroxides: about 0.8 g dissolves in 100 ml 0.5N NaOH.
  • Insoluble in water; slightly soluble in ethanol, diethyl ether; soluble in acetone, acetic acid, alkali
Spectral Properties
  • Absorption max: 430, 250 nm (log E 4.35, 4.60)
  • IR: 5147 (Coblentz Society Spectral Collection)
  • MASS: 70813 (NIST/EPA/MSDC Mass Spectral Database 1990 version)
  • UV: 4318 (Sadtler Research Laboratories Spectral Collection)
Surface Tension
  • None Found
  • None Found
Vapor Density
  • 8.3 (Air = 1)
Vapor Pressure
  • 8.6X10-10 mm Hg at 25 deg C (est)
  • None Found
log P (octanol-water)
  • log Kow = 3.94 (est)
  • None Found

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  • Important intermediate in the manufacture of alizarin and indanthrene dyestuffs; forms insoluble calcium, barium, and lead lakes. Antioxidant in synthetic lubricants; fungicide. **PEER REVIEWED**
  • It is currently used as an antioxidant in synthetic lubricants, in the synthesis of experimental antitumor agents, and as a fungicide for control of powdery mildew ... It is also used, to a lesser extent, as an intermediate in the manufacture of dyes and forms lakes with calcium, barium, and lead. **PEER REVIEWED**
  • Therapeutic category (Vet): Purgative /Former use in USA/ **PEER REVIEWED**
  • Therapeutic category: Cathartic /Former use in USA/ **PEER REVIEWED**

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Notes (Sources: NTP,HSDB,RTECS,MESH)2

  • None Found.

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Superlist Classes2

  • Overall Carcinogenic Evaluation: Group 2B
  • Reasonably Anticipated to be a Carcinogen

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Links to Additional Information2

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1 Source: the NTP's CEBS database.

2 Source: the National Library of Medicine's ChemIDPlus, 02/28/2017.

3 Source: the National Library of Medicine's Hazardous Substance Database, 02/28/2017.

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