4-Chloro-1,2-benzenediol

Basic Information

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CAS Number

2138-22-9

Molecular Formula

C6H5ClO2

Molecular Weight

144.56 g/mol

Chemical Classification

Agricultural Chemicals Pesticides Herbicides

Basic Physical Properties

Melting Point

88.0 to 93.0 deg-C

Boiling Point

140°C/10.5mmHg

Flash Point

115.3

Refractive Index

1.4620 (estimate)

SMILES

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C1=CC(=C(C=C1Cl)O)O

InChI

InChI=1S/C6H5ClO2/c7-4-1-2-5(8)6(9)3-4/h1-3,8-9H

InChIKey

WWOBYPKUYODHDG-UHFFFAOYSA-N

LogP

1.7512000000000003

Topological Polar Surface Area

40.46 Å²

Hydrogen Bond Donor/Acceptor

2 / 2

Complexity

97.1

Safety Information

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GHS Hazard Pictograms

H314

Hazard Statement

H314 Causes severe skin burns and eye damage
Skin corrosion/irritation

Hazard Class

Class 8 Class 8

Sensitiveness

sensitive to air

Synonyms & References

English

BRN 1907691
CHEBI:27772
PD157484
EINECS 218-381-9
4-Chloro-benzene-1,2-diol
CS-0128330
4-Chloropyrocatechol
4-chloranylbenzene-1,2-diol
SCHEMBL70036
EN300-114668
4CL
2138-22-9
HY-133597
1,2-Benzenediol, 4-chloro-
CAA13822
4-Chloro catechol
DTXSID7022176
4-Chlorocatechol, 97%
4-Chloro-1,2-benzenediol #
FT-0618259
4-chlorobenzene-1,2-diol
1,2-Benzenediol, 4-chloro-; Pyrocatechol, 4-chloro- (6CI,7CI,8CI); 4-Chloro-1,2-benzenediol; 4-Chloro-1,2-dihydroxybenzene; 4-Chlorocatechol; 4-Chloropyrocatechol
J-014023
Q27103321
C02375
4-CHLORO-1,2-DIHYDROXYBENZENE
4-Chlorocatechol
InChI=1/C6H5ClO2/c7-4-1-2-5(8)6(9)3-4/h1-3,8-9
I01EXU3P3J
4-06-00-05614 (Beilstein Handbook Reference)
Pyrocatechol, 4-chloro-

MDL Number

MFCD00059614

Customs Code

2908199090

FAQ

What is 4-Chloro-1,2-benzenediol (CAS: 2138-22-9)?

4-Chloro-1,2-benzenediol is an organic compound with the CAS number 2138-22-9. It is a diol derivative of chlorobenzenes and is known for its yellow-to-orange solid crystalline form. This compound is used in various applications including pharmaceuticals, dyes, and intermediates in chemical synthesis.

What are the main uses of 4-Chloro-1,2-benzenediol (CAS: 2138-22-9)?

4-Chloro-1,2-benzenediol is primarily used in the pharmaceutical industry as an intermediate for synthesizing other chemical compounds. It is also utilized in the production of dyes and as a reagent in chemical research. Additionally, it serves as a starting material for the preparation of other organic compounds.

Is 4-Chloro-1,2-benzenediol (CAS: 2138-22-9) safe?

4-Chloro-1,2-benzenediol is generally considered safe when handled with appropriate precautions. However, it is important to avoid skin contact and inhalation. Proper personal protective equipment, such as gloves and a respirator, should be used when working with this compound to minimize exposure risks.

How should 4-Chloro-1,2-benzenediol (CAS: 2138-22-9) be stored?

4-Chloro-1,2-benzenediol should be stored in a cool, dry, well-ventilated area away from direct sunlight and heat sources. It should be kept in a tightly sealed container to prevent moisture absorption and contamination. The storage temperature should not exceed 25°C to maintain stability and minimize degradation.