Why does CAS 693-98-1 appear in more than one EU cosmetic annex?

A substance identified by CAS 693-98-1 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 693-98-1?

Use the INCI Checker on CosIng Checker with INCI names, CAS numbers or EC numbers. Paste CAS 693-98-1 to screen it directly, then review every linked annex record and supplier document.

CAS 1 record

CAS 693-98-1

Q: How do I use CAS 693-98-1 for compliance screening?

Cross-reference CAS 693-98-1 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 693-98-1 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 693-98-1

CAS 693-98-1PubChem CID 12749

2-Methylimidazole

2-Methylimidazole can cause cancer according to California Labor Code. — California Office of Environmental Health Hazard Assessment (OEHHA)

IUPAC name: 2-methyl-1H-imidazole

Molecular formula: C4H6N2
Molecular weight: 82.10 g/mol
Exact mass: 82.053098200 Da
XLogP3: 0.2
Topological polar surface area: 28.7 Å²
Hydrogen-bond donors: 1
Hydrogen-bond acceptors: 1
Covalent units: 1
Defined stereocentres: 0

Also known as

1H-Imidazole, 2-methyl-T0049Z45LZCUREZOL-2MZ-PIMICURE-AMI 2EPICURE-MI 2EPIKURE-MI 2NSC-21394RefChem:88340

16 more reported names

211-765-7Imidazole, 2-methyl-2-MethylglyoxalineOndansetron EP Impurity F2-methyl imidazole2MZ2-methylimidazol2-Methyl-1H-imidazole; 1H-2-Methylimidazole; 2-Methylimidazole; 2MI; 2MZ; 2MZ-HCAS-693-98-1CCRIS 2459EINECS 211-765-7NSC 21394methylimidazolMethyl imidazolUNII-T0049Z45LZ2methylimidazole

Open full PubChem record PubChem annotations 3D structure image

External database identifiers

ChEMBL:CHEMBL293391
EPA DTXSID:DTXSID4022107
PubMed:23086493
PubMed:23013360
PubMed:22985442
PubMed:22973881
PubMed:22961286
PubMed:22834763
PubMed:22824462
PubMed:22807348
PubMed:22806466
PubMed:22742206
PubMed:22740287
PubMed:22666533

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 693-98-1

1 total

Annex

Entry

1654

2-methylimidazole

211-765-7

How CAS 693-98-1 is used on this site

CAS 693-98-1 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 693-98-1 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 693-98-1 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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