4-Chlorobenzene-1,2-diol Property

Melting point:

90-94 °C (lit.)

Boiling point:

140°C 10,5mm

Density 

1.2558 (rough estimate)

refractive index 

1.4620 (estimate)

storage temp. 

Inert atmosphere,Room Temperature

solubility 

Chloroform (Slightly), Methanol (Slightly)

form 

powder to crystal

pka

8.84±0.10(Predicted)

color 

White to Light yellow to Light orange

InChIKey

WWOBYPKUYODHDG-UHFFFAOYSA-N

CAS DataBase Reference

2138-22-9(CAS DataBase Reference)

Safety

Hazard Codes 

C

Risk Statements 

34

Safety Statements 

26-36/37/39-45

RIDADR 

UN 1759 8/PG 2

WGK Germany 

3

RTECS 

UX1490000

HazardClass 

8

PackingGroup 

II

HS Code 

29081990

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H314Causes severe skin burns and eye damage

Precautionary statements

P260Do not breathe dust/fume/gas/mist/vapours/spray.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P363Wash contaminated clothing before reuse.

4-Chlorobenzene-1,2-diol Chemical Properties,Usage,Production

Uses

4-chlorocatechol was a major degradation product of 4-chloro-2-aminophenol (4C2AP)1. The degradation of 4-chlorocatechol was catalyzed by cphA-I enzyme2.

Definition

ChEBI: A chlorocatechol that is catechol substituted by a chloro group at position 4.

Synthesis Reference(s)

Tetrahedron Letters, 33, p. 865, 1992 DOI: 10.1016/S0040-4039(00)91561-2

General Description

4-chlorocatechol was a major degradation product of 4-chloro-2-aminophenol (4C2AP). The degradation of 4-chlorocatechol was catalyzed by cphA-I enzyme.