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CAS 1 record

CAS 615-66-7

CAS 615-66-7 matches 1 EU annex record across Annex II–VI of Regulation 1223/2009.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 615-66-7
CAS 615-66-7PubChem CID 11998

2-Chloro-p-Phenylenediamine

2-chloro-1,4-phenylenediamine is a diamine that is 1,4-phenylenediamine substituted at position 2 by a chloro group. It has a role as a dye. It is a diamine and a member of monochlorobenzenes. It is functionally related to a 1,4-phenylenediamine. It is a conjugate base of a 2-chloro-1,4-phenylenediaminium. — ChEBI

IUPAC name
2-chlorobenzene-1,4-diamine
Molecular formula
C6H7ClN2
Molecular weight
142.58 g/mol
Exact mass
142.0297759 Da
XLogP3
1.6
Topological polar surface area
52.0 Ų
Hydrogen-bond donors
2
Hydrogen-bond acceptors
2
Covalent units
1
Defined stereocentres
0

Also known as

2-Chloro-1,4-diaminobenzene1,4-Benzenediamine, 2-chloro-Ursol Brown O2-Chloro-1,4-phenylenediamine3-Chloro-4-aminoaniline1,4-Diamino-2-chlorobenzene2-Chloro-1,4-benzenediamineo-Chloro-p-phenylenediamine
16 more reported names
2-Chloro-4-phenylenediaminep-Phenylenediamine, 2-chloro-C.I. 760653-Chloro-p-fenylendiaminW949BCC82RCI 76065CHEBI:76598RefChem:470353210-441-22-Chlor-p-fenylendiamin3-Chlor-p-fenylendiaminHSDB 41262-Chlor-p-fenylendiamin [Czech]3-Chlor-p-fenylendiamin [Czech]2-Chloro-(1,4-phenylenediamine)3-Chloro-p-fenylendiamin [Czech]
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External database identifiers

Retrieved from NIH PubChem on 2026-09-02 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Records for CAS 615-66-7

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How CAS 615-66-7 is used on this site

CAS 615-66-7 is the Chemical Abstracts Service identifier used to pin this page to a specific substance. In the current dataset, 1 EU annex record shares this identifier, which helps you cross-check whether the same substance appears under one regulatory context or several.

Use this page when a supplier specification, SDS or raw-material dossier gives you CAS 615-66-7 and you need to see every linked Annex II–VI record in one place. The entry cards above are the quickest route to concentration limits, warnings, annex placement and product-type conditions.