Official EU label nameGlossary entry 7975

CYSTEAMINE SULFATE

This record confirms an official common ingredient name for EU cosmetic product labelling. It does not by itself confirm that the substance is permitted, unrestricted or safe.

Global evidence snapshot

The resolved identity has matching regulatory evidence in 0 of 13 indexed market datasets: 0 country records and 0 EU Annex records. Every result and evidence gap is listed below.

0 markets with evidence

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Markets with evidence

Evidence gaps

Resolved identifiers

Resolved substance identity

CAS:157-09-516214-16-7

EC:240-340-9

Ingredient index records:

CYSTEAMINE SULFATE

Cosmetic functions: HAIR WAVING OR STRAIGHTENING

Cysteamine Sulfate is the amine salt that conforms to the formula

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1 matched or reported name

CYSTEAMINE SULFATE

Regulatory evidence across markets

None of the 13 markets tracked here holds an imported rule under the name CYSTEAMINE SULFATE.

That is a statement about this inventory, not about the law: no imported rule is not evidence that a substance is permitted. A rule may exist under a different name, under a CAS or EC number this glossary entry does not carry, or in a dataset not yet imported.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 157-09-5

CAS 157-09-5CAS 16214-16-7PubChem CID 12998627

Cystamine Sulfate

IUPAC name: 2-(2-aminoethyldisulfanyl)ethanamine;sulfuric acid

Molecular formula: C4H14N2O4S3
Molecular weight: 250.4 g/mol
Exact mass: 250.01157045 Da
Topological polar surface area: 186.0 Å²
Hydrogen-bond donors: 4
Hydrogen-bond acceptors: 8
Covalent units: 2
Defined stereocentres: 0

Also known as

RefChem:4402942,2'-Disulfanediyldiethanamine sulfateEINECS 240-340-9Cysteamine Sulfate,98per cent minimum2,2'-Dithiobis(ethylammonium) sulphate2-[(2-aminoethyl)disulfanyl]ethan-1-amine; sulfuric acidCrystaminesulfateC4H14N2O4S3

6 more reported names

Cystamine (sulfate)XVCYODCCYCPADG-UHFFFAOYSA-N2,2'-Dithiobis(ethylamine) Sulfate2,2'-Diaminodiethyl Disulfide SulfateAS-64968Sulfuric acid--2,2'-disulfanediyldi(ethan-1-amine) (1/1)

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External database identifiers

EPA DTXSID:DTXSID90936642

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

Additional authoritative substance research

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Cosmetic Ingredient Review safety assessments FDA Global Substance Registration System ILO/WHO International Chemical Safety Cards Japan NITE-CHRIP NIOSH Pocket Guide to Chemical Hazards OECD eChemPortal US EPA CompTox CTX APIs

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Official source and scope

Imported from Commission Implementing Decision (EU) 2025/1175 (dataset version EU 2025/1175). The glossary supplies common ingredient names for the ingredient list required by Article 19(1)(g); it is not an approval or safety list.

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