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CAS 1455-77-2

CAS 1455-77-2 matches 0 EU annex records across Annex II–VI of Regulation 1223/2009.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 1455-77-2
CAS 1455-77-2PubChem CID 15078

3,5-Diamino-1,2,4-triazole

Guanazole is an aromatic amine that is 1,2,4-triazole substituted at positions 3 and 5 by amino groups. It has a role as an antineoplastic agent, a DNA synthesis inhibitor and an EC 1.17.4.1 (ribonucleoside-diphosphate reductase) inhibitor. It is an aromatic amine and a member of triazoles. — ChEBI

IUPAC name
1H-1,2,4-triazole-3,5-diamine
Molecular formula
C2H5N5
Molecular weight
99.10 g/mol
Exact mass
99.05449518 Da
XLogP3
-0.7
Topological polar surface area
93.6 Ų
Hydrogen-bond donors
3
Hydrogen-bond acceptors
4
Covalent units
1
Defined stereocentres
0

Also known as

Guanazole3,5-Diamino-s-triazole3,5-Diamino-1H-1,2,4-triazoles-Triazole, 3,5-diamino-NCI-C04819NSC 1895MC 51762NSC-1895
16 more reported names
NSC1895I01TWM5267CHEBI:75425NSC-166592NSC-167391NSC-167392RefChem:144636215-937-24H-1,2,4-triazole-3,5-diamine503-88-81,2,4-Triazolidine, 3,5-diimino-1H-124-Triazole-35-diamineAI3-51272BIDD:GT03663,5-Diamino-1h-[1,2,4]triazoleGuanazole (VAN)
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External database identifiers

Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

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How CAS 1455-77-2 is used on this site

CAS 1455-77-2 is the Chemical Abstracts Service identifier used to pin this page to a specific substance. In the current dataset, 0 EU annex records share 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 1455-77-2 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.