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Chlorohydroquinone
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  • Name Chlorohydroquinone
  • EINECS210-442-8
  • CAS No. 615-67-8
  • Density1.471 g/cm3
  • PSA40.46000
  • LogP1.75120
  • SolubilitySoluble in water
  • Melting Point100-104 °C(lit.)
  • FormulaC6H5ClO2
  • Boiling Point263 °C at 760 mmHg
  • Molecular Weight144.558
  • Flash Point119.7 °C
  • Transport InformationUN 2811
  • Appearancelight brown to grey fine crystalline powder
  • Safety36/37-37/39-26
  • Risk Codes21-36/37/38-43
  • Molecular Structure
    Molecular Structure of 615-67-8 (Chlorohydroquinone)
  • Hazard SymbolsHarmfulXn,IrritantXi
  • SynonymsHarmfulXn,IrritantXi
  • Article Data70

Chlorohydroquinone Chemical Properties

Name of Substance: Chlorohydroquinone 
CAS Registry Number: 615-67-8
Synonyms: 1,4-Benzenediol, 2-chloro- ; 1,4-Dihydroxy-2-chlorobenzene ; 2,5-Dihydroxychlorobenzene ; 2-Chloro-1,4-benzenediol ; 2-Chloro-1,4-dihydroxybenzene ; 2-Chlorohydroquinone ; 4-06-00-05767 (Beilstein Handbook Reference) ; AI3-08933 ; BRN 0636835 ; Chlorohydroquinone ; Chloroquinol  ; EINECS 210-442-8 ; HSDB 2766 ; Hydroquinone, chloro- ; Monochlorohydroquinone ; NSC 427 ; NSC 5934 ; Hydroquinone, chloro- 
IUPAC Name: 2-chlorobenzene-1,4-diol 
Molecular Weight: 144.5557 [g/mol]
Molecular Formula: C6H5ClO2
XLogP3: 1.4
H-Bond Donor: 2
H-Bond Acceptor: 2 
Surface Tension: 59.7 dyne/cm
Density: 1.471 g/cm3
Flash Point: 119.7 °C
Enthalpy of Vaporization: 52.1 kJ/mol
Boiling Point: 263 °C at 760 mmHg
Vapour Pressure: 0.00647 mmHg at 25°C 
Following is the molecular structure of Chlorohydroquinone (CAS NO.615-67-8) is:

Chlorohydroquinone Uses

 Chlorohydroquinone (CAS NO.615-67-8) can be used to make photographic developer, organic intermediate, in dyestuffs and bactericide.

Chlorohydroquinone Toxicity Data With Reference

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
guinea pig LD50 skin 500mg/kg (500mg/kg)   Kodak Company Reports. Vol. 21MAY1971,
rat LDLo intraperitoneal 100mg/kg (100mg/kg)   Kodak Company Reports. Vol. 21MAY1971,
rat LDLo oral 200mg/kg (200mg/kg)   Kodak Company Reports. Vol. 21MAY1971,
rat LDLo skin 500mg/kg (500mg/kg)   Kodak Company Reports. Vol. 21MAY1971,

Chlorohydroquinone Consensus Reports

Reported in EPA TSCA Inventory.

Chlorohydroquinone Safety Profile

Safty information about Chlorohydroquinone (CAS NO.615-67-8) is:
Poison by ingestion and intraperitoneal routes. Moderately toxic by skin contact. Experimental reproductive effects. When heated to decomposition it emits toxic fumes of Cl−. 
Hazard Codes:
 HarmfulXn,Xi
Risk Statements:
R21:Harmful in contact with skin. 
R36/37/38:Irritating to eyes, respiratory system and skin. 
R43:May cause sensitization by skin contact.
Safety Statements:
S36/37:Wear suitable protective clothing and gloves. 
S37/39:Wear suitable gloves and eye/face protection. 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
RIDADR: UN2811
WGK Germany: 3
RTECS: MX4800000
HazardClass: 6.1
PackingGroup: III

Chlorohydroquinone Specification

 Chlorohydroquinone (CAS NO.615-67-8) is a white to light-tan fine crystals.

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