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HomeProduct name list2,5-DICHLOROHYDROQUINONE

2,5-DICHLOROHYDROQUINONE

  • CAS NO.:824-69-1
  • Empirical Formula: C6H4Cl2O2
  • Molecular Weight: 179
  • MDL number: MFCD00041749
  • EINECS: 212-533-8
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2024-04-28 16:56:32
2,5-DICHLOROHYDROQUINONE Structural

What is 2,5-DICHLOROHYDROQUINONE?

Chemical properties

almost white to pink-brown crystalline powder

Definition

ChEBI: A dichlorohydroquinone that is hydroquinone substituted by chloro groups at positions 2 and 5 respectively.

General Description

2,5-Dichlorohydroquinone (2,5-DCHQ) is a hydroquinone derivative that can be synthesized by reducing 2,5-dichloroquinone using sodium dithionite (Na2S2O4). The kinetics of the reaction of 2,5-DCHQ and N-phenyl-1,4-benzoquinonemonoimine has been studied. The transformation of 2,5-DCHQ to 2-chloromaleylacetate using PcpA (Pcp = pentachlorophenol) protein, isolated from Escherichia coli has been investigated. It is reported to be the degradation product of 2,4,5-trichlorophenoxyacetic acid and γ-hexachlorocyclohexane.

Properties of 2,5-DICHLOROHYDROQUINONE

Melting point: 168-171 °C (lit.)
Boiling point: 255.02°C (rough estimate)
Density  1.4512 (rough estimate)
refractive index  1.4420 (estimate)
pka 7.96±0.23(Predicted)
CAS DataBase Reference 824-69-1(CAS DataBase Reference)
EPA Substance Registry System 1,4-Benzenediol, 2,5-dichloro- (824-69-1)

Safety information for 2,5-DICHLOROHYDROQUINONE

Signal word Danger
Pictogram(s)
ghs
Corrosion
Corrosives
GHS05
ghs
Exclamation Mark
Irritant
GHS07
GHS Hazard Statements H314:Skin corrosion/irritation
H315:Skin corrosion/irritation
H319:Serious eye damage/eye irritation
H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes P261:Avoid breathing dust/fume/gas/mist/vapours/spray.
P280:Wear protective gloves/protective clothing/eye protection/face protection.
P310:Immediately call a POISON CENTER or doctor/physician.
P304+P340:IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P405:Store locked up.

Computed Descriptors for 2,5-DICHLOROHYDROQUINONE

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