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CAS 96702-03-3

CAS 96702-03-3 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 96702-03-3
CAS 96702-03-3PubChem CID 126041

Ectoine

Ectoine is a carboxamidine heterocycle obtained by formal condensation of (2S)-2,4-diaminobutanoic acid with acetic acid. It has a role as an osmolyte. It is a monocarboxylic acid, a carboxamidine and a member of 1,4,5,6-tetrahydropyrimidines. It is a conjugate acid of an ectoinate. It is a tautomer of an ectoine zwitterion. — ChEBI

IUPAC name
(6S)-2-methyl-1,4,5,6-tetrahydropyrimidine-6-carboxylic acid
Molecular formula
C6H10N2O2
Molecular weight
142.16 g/mol
Exact mass
142.074227566 Da
XLogP3
-0.8
Topological polar surface area
61.7 Ų
Hydrogen-bond donors
2
Hydrogen-bond acceptors
3
Covalent units
1
Defined stereocentres
1

Also known as

ectoin7GXZ3858RY(4S)-2-methyl-1,4,5,6-tetrahydropyrimidine-4-carboxylic acidCHEBI:27592NSC-6146161,4,5,6-Tetrahydro-2-methyl-4-pyrimidinecarboxylic acid(4S)-3,4,5,6-Tetrahydro-2-methyl-4-pyrimidinecarboxylic acid4-Pyrimidinecarboxylic acid, 1,4,5,6-tetrahydro-2-methyl-, (+)-
16 more reported names
(4S)-2-methyl-1,4,5,6-tetrahydropyrimidine-4-carboxylate(6S)-2-methyl-1,4,5,6-tetrahydropyrimidin-3-ium-6-carboxylateRefChem:5905672-methyl-3,4,5,6-tetrahydropyrimidine-4-carboxylic acidL-Ectoine(S)-2-Methyl-3,4,5,6-tetrahydropyrimidine-4-carboxylic acid(S)-2-Methyl-1,4,5,6-tetrahydropyrimidine-4-carboxylic acidUS9138393, Ectoine4-Pyrimidinecarboxylicacid, 3,4,5,6-tetrahydro-2-methyl-, (4S)-(S)-2-Methyl- 1,4,5,6-tetrahydropyrimidine-4-carboxylic acid(+)-1,4,5,6-tetrahydro-2-methyl-4-pyrimidinecarboxylic acidUNII-7GXZ3858RY(S)-1,4,5,6-Tetrahydro-2-methyl-4-pyrimidincarbonsureEctoine?4CSEctoine (Standard)
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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 96702-03-3 is used on this site

CAS 96702-03-3 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 96702-03-3 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.