Why does CAS 97-74-5 appear in more than one EU cosmetic annex?

A substance identified by CAS 97-74-5 may appear in multiple EU cosmetic regulation annexes when it is subject to different conditions in different contexts — for example, restricted under Annex III with specific conditions, while also appearing in Annex IV as an approved colorant under separate entry conditions. Each entry must be reviewed individually.

How do I check if my formula contains a substance with CAS 97-74-5?

Use the INCI Checker on CosIng Checker with INCI names, CAS numbers or EC numbers. Paste CAS 97-74-5 to screen it directly, then review every linked annex record and supplier document.

CAS 1 record

CAS 97-74-5

Q: How do I use CAS 97-74-5 for compliance screening?

Cross-reference CAS 97-74-5 against your raw material specification sheets and CoA documents. When it appears in Annex II, verify absence. When it appears in Annex III, verify that concentration limits and product type conditions are met. All annex entries sharing this CAS number are listed on this page.

CAS 97-74-5 matches 1 EU annex record across Annex II–VI of Regulation 1223/2009.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 97-74-5

CAS 97-74-5PubChem CID 7347

Tetramethylthiuram monosulfide

Tetramethylthiuram monosulfide is a Standardized Chemical Allergen. The physiologic effect of tetramethylthiuram monosulfide is by means of Increased Histamine Release and Cell-mediated Immunity. — FDA Pharm Classes

IUPAC name: dimethylcarbamothioyl N,N-dimethylcarbamodithioate

Molecular formula: C6H12N2S3
Molecular weight: 208.4 g/mol
Exact mass: 208.01626191 Da
XLogP3: 1.7
Topological polar surface area: 96.0 Å²
Hydrogen-bond donors: 0
Hydrogen-bond acceptors: 3
Covalent units: 1
Defined stereocentres: 0

Also known as

BIS(DIMETHYLTHIOCARBAMOYL) SULFIDEUnadsTMTMMonothiuramMono-thiuradAceto TMTMThiuram MMTMTMS

16 more reported names

Tetramethylthiuram sulfideCyuram MSEkagom TMVulkacit msVulkacit Thiuram MSPennac MSTetramethylthiuramide sulfideTetramethylthiuram monosulphideTetramethylthiurammonium sulfideTetramethylthiuramonosulfideVulkacit thiuram ms/CThiuram monosulfide, tetramethyl-Tetramethyldithiocarbamic acid anhydrosulfideMonosulfure de tetramethylthiurameN,N,N',N'-Tetramethylthiuram monosulfideBis(dimethylthiocarbamoyl)sulfide

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

ChEMBL:CHEMBL571700
EPA DTXSID:DTXSID0021333
PubMed:31652400
PubMed:21906074
PubMed:20530235
PubMed:20041260
PubMed:19256384
PubMed:18034975
PubMed:12492171
PubMed:11918604
PubMed:11526517

Retrieved from NIH PubChem on 2026-09-02 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Records for CAS 97-74-5

1 total

Annex

Entry

353

Thiuram monosulphides

202-605-7

How CAS 97-74-5 is used on this site

CAS 97-74-5 is the Chemical Abstracts Service identifier used to pin this page to a specific substance. In the current dataset, 1 EU annex record shares 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 97-74-5 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.

Frequently asked questions

A substance identified by CAS 97-74-5 may appear in multiple EU cosmetic regulation annexes when it is subject to different conditions in different contexts. For example, a substance might be restricted under Annex III with specific conditions, and the same CAS might also appear in Annex IV as an approved colorant under separate entry conditions. Each entry must be reviewed individually.

Cross-reference the CAS number against your raw material specification sheets and CoA documents. When a CAS appears in Annex II, verify absence. When it appears in Annex III, verify that concentration limits and product type conditions are met in your formulation. All annex entries sharing this CAS number are listed above.

A CAS number is assigned by the Chemical Abstracts Service (USA) and is globally recognised. An EC number is a European Commission identifier from inventories such as EINECS, ELINCS or the NLP list. Both identifiers may appear in EU cosmetic annex entries. Some substances have both, some have only one, and some older entries may have neither.

The INCI Checker accepts ingredient names, CAS numbers and EC numbers. Check this CAS number directly, then verify the result against supplier specification sheets and every linked annex condition.

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Tools & next steps

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