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CAS 33007-83-9 may appear across multiple EU annex records. The CAS lookup page shows all Annex II–VI entries sharing this identifier, useful for identifying cross-annex regulatory status of the same chemical substance.

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InventoryRef 9465306/09/2016

TRIMETHYLOLPROPANE TRIS-MERCAPTOPROPIONATE

Propanoic acid, 3-mercapto-, 1,1'-[2-ethyl-2-[(3-mercapto-1-oxopropoxy)methyl]-1,3-propanediyl] ester

TRIMETHYLOLPROPANE TRIS-MERCAPTOPROPIONATE is listed in the EU CosIng inventory, but no direct annex records are linked on this page yet.

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Regulatory evidence by market

No rule for this ingredient has been imported for any of the 13 markets tracked here.

That describes this inventory, not the law. No imported rule is not evidence that an ingredient is permitted: a rule may exist under another name or identifier, or in a dataset not yet imported here.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 33007-83-9

CAS 33007-83-9PubChem CID 118379

Trimethylolpropane tris(3-mercaptopropionate)

IUPAC name: 2,2-bis(3-sulfanylpropanoyloxymethyl)butyl 3-sulfanylpropanoate

Molecular formula: C15H26O6S3
Molecular weight: 398.6 g/mol
Exact mass: 398.08915207 Da
XLogP3: 1.6
Topological polar surface area: 81.9 Å²
Hydrogen-bond donors: 3
Hydrogen-bond acceptors: 9
Covalent units: 1
Defined stereocentres: 0

Also known as

BYN53W5D3L2,2-bis{[(3-sulfanylpropanoyl)oxy]methyl}butyl 3-sulfanylpropanoatePropanoic acid, 3-mercapto-, 2-ethyl-2-((3-mercapto-1-oxopropoxy)methyl)-1,3-propanediyl esterPropanoic acid, 3-mercapto-, 1,1'-(2-ethyl-2-((3-mercapto-1-oxopropoxy)methyl)-1,3-propanediyl) ester2-Ethyl-2-((3-mercapto-1-oxopropoxy)methyl)propane-1,3-diyl bis(3-mercaptopropionate)2,2-BIS(((3-SULFANYLPROPANOYL)OXY)METHYL)BUTYL 3-SULFANYLPROPANOATEPROPANOIC ACID, 3-MERCAPTO-, 1,1'-(2-ETHYL-2-((3-MERCAPTO-1-1,3-PROPANEDIOL, 2-ETHYL-2-(HYDROXYMETHYL)-, TRIS(3-MERCAPTOPROPIONATE)

16 more reported names

2-ethyl-2-[(3-mercapto-1-oxopropoxy)methyl]propane-1,3-diyl bis[3-mercaptopropionate]PROPIONIC ACID, 3-MERCAPTO-, TRIESTER WITH 2-ETHYL-2-(HYDROXYMETHYL)-1,3-PROPANEDIOLPropanoic acid, 3-mercapto-, 2-ethyl-2-[(3-mercapto-1-oxopropoxy)methyl]-1,3-propanediyl esterPropanoic acid, 3-mercapto-, 1,1'-[2-ethyl-2-[(3-mercapto-1-oxopropoxy)methyl]-1,3-propanediyl] esterRefChem:899873Epicure QX 30UNII-BYN53W5D3LEINECS 251-336-13-Mercaptopropionic acid triester with trimethylolpropane1,1,1-Tris(3-mercaptopropionyloxymethyl)propane3-Mercaptopropanoic acid, 2-ethyl-2-(hydroxymethyl)-1,3-propanediol triesterTRIMETHYLOLPROPANE TRI(3-MERCAPTO PROPIONATE)C15H26O6S33TP6IMQFZQVZKBIPCQ-UHFFFAOYSA-NTox21_301639

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

ChEMBL:CHEMBL3182472
EPA DTXSID:DTXSID8044919
PubMed:18576285
PubMed:16046232

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

Inventory details for TRIMETHYLOLPROPANE TRIS-MERCAPTOPROPIONATE

INCI name

TRIMETHYLOLPROPANE TRIS-MERCAPTOPROPIONATE

Description

Propanoic acid, 3-mercapto-, 1,1'-[2-ethyl-2-[(3-mercapto-1-oxopropoxy)methyl]-1,3-propanediyl] ester

Record provenance

Inventory reference: 94653
Imported identity: TRIMETHYLOLPROPANE TRIS-MERCAPTOPROPIONATE
Source update: 06/09/2016

European Commission CosIng source notes

Annex records for TRIMETHYLOLPROPANE TRIS-MERCAPTOPROPIONATE

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Key data

CAS

33007-83-9

—

Restriction

—

Function

NOT REPORTED: No function currently reported.

Official EU ingredient-name evidence

The ingredient name exactly matches the official 2025 EU glossary of common ingredient names.

#29292 · TRIMETHYLOLPROPANE TRIS-MERCAPTOPROPIONATE

Ingredients with overlapping formulation functions

TRIFLUOROMETHYL DEHYDROLATANOPROSTNOT REPORTED

TRIMELLITIC ANHYDRIDENOT REPORTED

TRIMETHYLHEXAMETHYLENE DIISOCYANATENOT REPORTED

TRIMETHYLOLPROPANE DIALLYL ETHERNOT REPORTED

TRIMETHYLPENTYL/METHOXY PEG-10 PROPYL POLYSILSESQUIOXANENOT REPORTED

TRIPEPTIDE-110NOT REPORTED

TRIPEPTIDE-70NOT REPORTED

TRIPEPTIDE-75NOT REPORTED

Additional official and scientific sources

11 external databases to check this identity in

Each link searches that source for this identity. What each source is, and its legal weight

ECHA CHEM / Information on chemicals PubChem PUG REST EU Safety Gate cosmetic product alerts ECHA CHEM US EPA CompTox 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

How TRIMETHYLOLPROPANE TRIS-MERCAPTOPROPIONATE appears in the CosIng inventory

The CosIng inventory lists TRIMETHYLOLPROPANE TRIS-MERCAPTOPROPIONATE as a cosmetic ingredient and this page links it to 0 annex records. The inventory entry captures names and identifiers, while the annex records show where the substance is prohibited, restricted or positively listed in EU cosmetics law.

TRIMETHYLOLPROPANE TRIS-MERCAPTOPROPIONATE is also tagged with 1 cosmetic function in the official data. Function labels describe intended use, but they do not replace regulatory review of linked annex records before formulation or labelling work.

Frequently asked questions

TRIMETHYLOLPROPANE TRIS-MERCAPTOPROPIONATE is listed in the EU CosIng ingredient inventory with no direct annex restriction records linked at this time. Absence of an annex link does not guarantee unrestricted use — always verify against the current official CosIng database before formulating.

According to the EU CosIng inventory, TRIMETHYLOLPROPANE TRIS-MERCAPTOPROPIONATE carries the following function designation(s):

NOT REPORTED

CAS 33007-83-9 may appear across multiple EU annex records. Viewing the CAS lookup page shows all Annex II–VI entries sharing this identifier, which is useful for identifying cross-annex regulatory status of the same chemical substance.

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Source note for TRIMETHYLOLPROPANE TRIS-MERCAPTOPROPIONATE

This page reproduces the CosIng inventory entry for TRIMETHYLOLPROPANE TRIS-MERCAPTOPROPIONATE from public European Commission cosmetic ingredient materials and shows linked identifiers even when no direct annex match is currently attached.

Use this inventory page to research TRIMETHYLOLPROPANE TRIS-MERCAPTOPROPIONATE and compare linked records, but verify restrictions and legal status against the current official source text and law before making regulatory decisions.

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