DIMETHYL CYSTINATE
L-Cystine, dimethyl ester
DIMETHYL CYSTINATE is listed in the EU CosIng inventory, but no direct annex records are linked on this page yet.
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.
Chemical identity and properties
L-Cystine, 1,1'-dimethyl ester
- IUPAC name
- methyl (2R)-2-amino-3-[[(2R)-2-amino-3-methoxy-3-oxopropyl]disulfanyl]propanoate
- Molecular formula
- C8H16N2O4S2
- Molecular weight
- 268.4 g/mol
- Exact mass
- 268.05514934 Da
- XLogP3
- -1.1
- Topological polar surface area
- 155.0 Ų
- Hydrogen-bond donors
- 2
- Hydrogen-bond acceptors
- 8
- Covalent units
- 1
- Defined stereocentres
- 2
Also known as
5 more reported names
External database identifiers
- ChEMBL:CHEMBL4228994
Evidence from additional scientific databases
NIH PubChem PUG-View
Attributed physical-property, hazard, environmental and use annotations.
Mapped by: Existing checksum-valid CAS to unique PubChem CID match. Retrieved: 2026-08-31. Open source record
Scientific classifications and hazard annotations provide context and do not replace the market-specific regulatory decision shown above.
Additional source coverage and match status
| Source | Result | Checked |
|---|---|---|
| EMBL-EBI ChEBI | No exact record | 2026-08-31 |
| NIH PubChem PUG-View | Exact match | 2026-08-31 |
A recorded no-match is useful evidence that the source was checked; it is not a claim that the substance does not exist elsewhere.
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 DIMETHYL CYSTINATE
INCI name
DIMETHYL CYSTINATE
Description
L-Cystine, dimethyl ester
Record provenance
- Inventory reference
- 75862
- Imported identity
- DIMETHYL CYSTINATE
- Source update
- 15/10/2010
Annex records for DIMETHYL CYSTINATE
Key data
- ANTISTATIC
- Preventing and/or reducing static electricity by neutralising electrical charge on surfaces.
- SKIN CONDITIONING
- Maintaining the skin in good condition.
Official EU ingredient-name evidence
The ingredient name exactly matches the official 2025 EU glossary of common ingredient names.
Related inventory evidence
Ingredients with overlapping formulation functions
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
How DIMETHYL CYSTINATE appears in the CosIng inventory
The CosIng inventory lists DIMETHYL CYSTINATE 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.
DIMETHYL CYSTINATE is also tagged with 2 cosmetic functions 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
Source note for DIMETHYL CYSTINATE
This page reproduces the CosIng inventory entry for DIMETHYL CYSTINATE 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 DIMETHYL CYSTINATE and compare linked records, but verify restrictions and legal status against the current official source text and law before making regulatory decisions.
Tools & next steps
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