4-氯邻苯二胺

Description

4-chloro-o-phenylenediamine · CAS 95-83-0 · C6H7ClN2. UNII 8E72QRZ33H. Melting Point: 153 to 158 °F (NTP, 1992); Melting Point: 76 °C; Vapor Pressure: 0.00206 [mmHg].

Identification

CAS Registry Number	95-83-0
PubChem CID	7263
Molecular formula	C6H7ClN2
IUPAC name	4-chlorobenzene-1,2-diamine
UNII (FDA)	8E72QRZ33H

Computed Descriptors

Molecular Weight	142.58
XLogP3	1.3
Hydrogen Bond Donor Count	2
Hydrogen Bond Acceptor Count	2
Rotatable Bond Count	0
Exact Mass	142.0297759
Monoisotopic Mass	142.0297759
Topological Polar Surface Area	52
Heavy Atom Count	9
Formal Charge	0

Physical & Chemical Properties

Melting Point	153 to 158 °F (NTP, 1992)
Melting Point	76 °C
Vapor Pressure	0.00206 [mmHg]
LogP	log Kow = 1.28
LogP	1.28

Physical description & handling notes

• 4-chloro-o-phenylenediamine appears as brown crystalline solid or powder. (NTP, 1992)
• Brown solid; May be sensitive to prolonged exposure to air and light; [CAMEO] Deep brown powder; [MSDSonline]
• Crystals
• less than 1 mg/mL at 66 °F (NTP, 1992)
• Soluble in benzene, very soluble in ethanol, ether.
• Slightly soluble in water

GHS Hazard Classification

Reported hazard statements	H302 (10%), H315 (84%), H319 (84%), H335 (84%), H351 (84%), H341

Documented Uses

• Used as an ingredient in hair dyes, a curing agent for epoxy resins, a reagent in gas chromatographic analyses, and a chemical intermediate for dyes; [HSDB]
• Plastic Composites Manufacturing [Category: Industry]
• Dressing Hair [Category: Other]
• OXIDATION BASE; CHEM INT FOR CI VAT BROWN 22 & 5-CHLOROBENZOTRIAZOLE; INGREDIENT IN HAIR DYES; CURING AGENT FOR EPOXY RESINS; REAGENT IN GAS CHROMATOGRAPHIC ANALYSES
• GAS CHROMATOGRAPHIC METHOD WAS DEVELOPED FOR DETERMINATION OF SELENIUM IN VARIOUS SAMPLES. SE WAS EXTRACTED WITH HOT HCL & REACTED WITH 4-CHLORO-O-PHENYLENEDIAMINE.
• The 1979 TSCA Inventory identified one US firm producing 6,000 lb in 1977 ... It has been produced commercially in the US since 1941 ... .

Synonyms

95-83-0; 4-chlorobenzene-1,2-diamine; 4-Chloro-o-phenylenediamine; 4-Chloro-1,2-diaminobenzene; 4-Chloro-1,2-phenylenediamine; 1,2-Diamino-4-chlorobenzene; 4-CHLORO-1,2-BENZENEDIAMINE; Ursol Olive 6G; 1,2-Benzenediamine, 4-chloro-; 2-Amino-4-chloroaniline; 3,4-Diaminochlorobenzene; p-Chloro-o-phenylenediamine; o-Phenylenediamine, 4-chloro-; NCI-C03292; 3,4-Diamino-1-chlorobenzene; MFCD00011691

Frequently Asked Questions

What are the CAS number and molecular formula of 4-chloro-o-phenylenediamine?

CAS 95-83-0; molecular formula C6H7ClN2; molecular weight — g/mol.

What other names is 4-chloro-o-phenylenediamine known by?

95-83-0, 4-chlorobenzene-1,2-diamine, 4-Chloro-o-phenylenediamine, 4-Chloro-1,2-diaminobenzene, 4-Chloro-1,2-phenylenediamine, 1,2-Diamino-4-chlorobenzene.

Is 4-chloro-o-phenylenediamine classified as hazardous?

Hazard statements reported: H302, H315, H319, H335, H351.

What are the key physical properties of 4-chloro-o-phenylenediamine?

Melting Point: 153 to 158 °F (NTP, 1992); Melting Point: 76 °C; Vapor Pressure: 0.00206 [mmHg]; LogP: log Kow = 1.28.

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.