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CAS 64296-20-4

CAS 64296-20-4 matches 0 EU annex records across Annex II–VI of Regulation 1223/2009.

Chemical identity and properties

PubChem 2D chemical structure for CAS 64296-20-4
CAS 64296-20-4PubChem CID 21117946

Neosaxitoxin

Neosaxitoxin is under investigation in clinical trial NCT01786655 (Safety Study of Long-Acting Local Anesthetic). DrugBank

IUPAC name
[(3aS,4R,10aS)-2-amino-5,10,10-trihydroxy-6-imino-3a,4,8,9-tetrahydro-1H-pyrrolo[1,2-c]purin-4-yl]methyl carbamate
Molecular formula
C10H17N7O5
Molecular weight
315.29 g/mol
Exact mass
315.12911667 Da
XLogP3
-4.3
Topological polar surface area
194.0 Ų
Hydrogen-bond donors
7
Hydrogen-bond acceptors
7
Covalent units
1
Defined stereocentres
3

Also known as

NeoSTX6YRL8BWD9HCHEBI:167561(3aS,4R,10aS)-2-amino-4-(((aminocarbonyl)oxy)methyl)-3a,4,5,6,8,9-hexahydro-5-hydroxy-6-imino-1H,10H-pyrrolo(1,2-c)purine-10,10-diol1H,10H-Pyrrolo(1,2-c)purine-10,10-diol, 2-amino-4-(((aminocarbonyl)oxy)methyl)-3a,4,5,6,8,9-hexahydro-5-hydroxy-6-imino-, (3aS,4R,10aS)-((3aS,4R,10aS)-5,10,10-Trihydroxy-2,6-diiminooctahydro-1H,8H-pyrrolo(1,2-c)purin-4-yl)methyl carbamate[(3aS,4R,10aS)-5,10,10-Trihydroxy-2,6-diiminooctahydro-1H,8H-pyrrolo[1,2-c]purin-4-yl]methyl carbamateRefChem:165395
8 more reported names
((4R,10aS,10bS)-2-amino-5,10,10-trihydroxy-6-imino-3H,4H,5H,6H,8H,9H,10H,10bH-pyrrolo(1,2-c)purin-4-yl)methyl carbamateneosaxitoxinaNSTX[(3aS,4R,10aS)-2-Amino-5,10,10-trihydroxy-6-imino-3a,4,5,6,9,10-hexahydro-1H,8H-pyrrolo[1,2-c]purin-4-yl]methyl carbamate[(3aS,4R,10aS)-2-amino-5,10,10-trihydroxy-6-imino-3a,4,5,6,9,10-hexahydro-3H,8H-pyrrolo[1,2-c]purin-4-yl]methyl carbamate1H,10H-PYRROLO(1,2-C)PURINE-10,10-DIOL, 2-AMINO-4-(((AMINOCARBONYL)OXY)METHYL)-3A,4,5,6,8,9-HEXAHYDRO-5-HYDROXY-6-IMINO-, (3AS-(3A.ALPHA.,4.ALPHA.,10AR*))-1H,10H-Pyrrolo(1,2-c)purine-10,10-diol, 2-amino-4-((aminocarbonyl)oxy)methyl-3a,4,5,6,8,9-hexahydro-5-hydroxy-6-imino-, (3aS,4R,10aS)-1H,10H-Pyrrolo(1,2-c)purine-10,10-diol, 2-amino-4-((aminocarbonyl)oxy)methyl-3a,4,5,6,8,9-hexahydro-5-hydroxy-6-imino-, (3aS-(3aalpha,4alpha,10aR*))-
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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CAS 64296-20-4 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 64296-20-4 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.