4-氯邻邻苯二酚

Description

4-chloropyrocatechol · CAS 2138-22-9 · C6H5ClO2. UNII I01EXU3P3J. Melting Point: 90.5 °C.

Identification

CAS Registry Number	2138-22-9
PubChem CID	16496
Molecular formula	C6H5ClO2
IUPAC name	4-chlorobenzene-1,2-diol
UNII (FDA)	I01EXU3P3J

Computed Descriptors

Molecular Weight	144.55
XLogP3	2.3
Hydrogen Bond Donor Count	2
Hydrogen Bond Acceptor Count	2
Rotatable Bond Count	0
Exact Mass	143.9978071
Monoisotopic Mass	143.9978071
Topological Polar Surface Area	40.5
Heavy Atom Count	9
Formal Charge	0

Physical & Chemical Properties

Melting Point	90.5 °C

Physical description & handling notes

• Solid

GHS Hazard Classification

Reported hazard statements	H314 (100%)

Synonyms

4-Chlorocatechol; 4-chlorobenzene-1,2-diol; 2138-22-9; 4-Chloropyrocatechol; 4-Chloro-1,2-benzenediol; 1,2-Benzenediol, 4-chloro-; Pyrocatechol, 4-chloro-; I01EXU3P3J; DTXSID7022176; CHEBI:27772; RefChem:521976; DTXCID902176; 218-381-9; 4-Chloro catechol; 4-CHLORO-1,2-DIHYDROXYBENZENE; 4-Chloro-benzene-1,2-diol

Frequently Asked Questions

What are the CAS number and molecular formula of 4-chloropyrocatechol?

CAS 2138-22-9; molecular formula C6H5ClO2; molecular weight — g/mol.

What other names is 4-chloropyrocatechol known by?

4-Chlorocatechol, 4-chlorobenzene-1,2-diol, 2138-22-9, 4-Chloropyrocatechol, 4-Chloro-1,2-benzenediol, 1,2-Benzenediol, 4-chloro-.

Is 4-chloropyrocatechol classified as hazardous?

Hazard statements reported: H314.

What are the key physical properties of 4-chloropyrocatechol?

Melting Point: 90.5 °C.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.