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CAS 300-84-5

CAS 300-84-5 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 300-84-5
CAS 300-84-5PubChem CID 107812

Hypotaurine

Hypotaurine is an aminosulfinic acid comprising ethylamine having the sulfo group at the 2-position. It has a role as a metabolite, a mouse metabolite and a human metabolite. It is a conjugate acid of a hypotaurine(1-). It is a tautomer of a hypotaurine zwitterion. — ChEBI

IUPAC name
2-aminoethanesulfinic acid
Molecular formula
C2H7NO2S
Molecular weight
109.15 g/mol
Exact mass
109.01974964 Da
XLogP3
-1.5
Topological polar surface area
82.5 Ų
Hydrogen-bond donors
2
Hydrogen-bond acceptors
4
Covalent units
1
Defined stereocentres
0

Also known as

Ethanesulfinic acid, 2-amino-2-aminoethane-1-sulfinic acidaminoethanesulfinic acid5L08GE4332CHEBI:166682-azaniumylethanesulfinateRefChem:147481428-720-4
16 more reported names
627-467-92-Aminoethylsulfinic acidCystaminesulfinic acidCystaminesulfinateUNII-5L08GE43322-Aminoethylsulfinic Acid; 2-Aminoethanesulfinic Acid2-Aminoethylsulfinic AcidCystaminesulfinic Acid2-AminoethylsulfinateTocris-02082-amino-EthanesulfinateLopac-H-1384Taurolithocholic Impurity 92-amino-Ethanesulfinic acidLopac0_0005732-aminoethane-1-sulfinicacidHypotaurine, >=98% (TLC)HMS3261D08
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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.

Records for CAS 300-84-5

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How CAS 300-84-5 is used on this site

CAS 300-84-5 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 300-84-5 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.