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CAS 1 record

CAS 137-09-7

CAS 137-09-7 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 137-09-7
CAS 137-09-7PubChem CID 8715

2,4-Diaminophenol hydrochloride

Grayish-white crystals. (NTP, 1992) — CAMEO Chemicals

IUPAC name
2,4-diaminophenol;dihydrochloride
Molecular formula
C6H10Cl2N2O
Molecular weight
197.06 g/mol
Exact mass
196.0170183 Da
Topological polar surface area
72.3 Ų
Hydrogen-bond donors
5
Hydrogen-bond acceptors
3
Covalent units
3
Defined stereocentres
0

Also known as

2,4-DIAMINOPHENOL DIHYDROCHLORIDEAcrolPhenol, 2,4-diamino-, dihydrochloride2,4-Diaminophenol HClDiamidophenol hydrochloridePhenol, 2,4-diamino-, hydrochloride (1:2)NCI-C60026T1IYY101NX
16 more reported names
RODOL 24DAPCNSC-1536RefChem:908739205-279-4Amidol2,4-Diaminophenol.2HClDianolCAS-137-09-7CCRIS 2118HSDB 4363NSC 1536EINECS 205-279-4UNII-T1IYY101NX4-Hydroxy-m-phenylenediammonium dichloride2,4-diaminophenoldihydrochloride24-Diaminophenol dihydrochloride
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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 137-09-7

1 total
No records found for this CAS number.

How CAS 137-09-7 is used on this site

CAS 137-09-7 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 137-09-7 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.