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CAS 18640-74-9

CAS 18640-74-9 matches 0 EU annex records across Annex II–VI of Regulation 1223/2009.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 18640-74-9
CAS 18640-74-9PubChem CID 62725

2-Isobutylthiazole

2-isobutylthiazole is a 1,3-thiazole in which the hydrogen at position 2 has been replaced by an isobutyl group. A food flavour component with a green note that adds the characteristics of ripe tomatoes. Used in blackcurrent, papaya, melon, raspberry, and roast beef flavours, it also enhances the flavour of fresh lime. It has a role as a pheromone, a flavouring agent and a Maillard reaction product. — ChEBI

IUPAC name
2-(2-methylpropyl)-1,3-thiazole
Molecular formula
C7H11NS
Molecular weight
141.24 g/mol
Exact mass
141.06122053 Da
XLogP3
2.6
Topological polar surface area
41.1 Ų
Hydrogen-bond donors
0
Hydrogen-bond acceptors
2
Covalent units
1
Defined stereocentres
0

Also known as

Thiazole, 2-isobutyl-2-Isobutyl-1,3-thiazoleThiazole, 2-(2-methylpropyl)-FEMA No. 31347N03TDY75DNSC-290430CHEBI:133683RefChem:473818
16 more reported names
242-470-12-(2-Methylpropyl)thiazole2-(2-Methylpropyl) thiazole2-ISOBUTYL THIAZOLEThiazole, (2-methylpropyl)-EINECS 242-470-1NSC 290430UNII-7N03TDY75D2-(2-Methylpropyl)-thiazole2-iso-butylthiazole2-isobutyl-thiazole2-Isobutylthiazole, 8CI2-Isobutylthiazole, 99%2-Isobutyl-1,3-thiazole #Thiazole, 2-isobutyl- (8CI)FEMA 3134
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External database identifiers

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

Records for CAS 18640-74-9

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How CAS 18640-74-9 is used on this site

CAS 18640-74-9 is the Chemical Abstracts Service identifier used to pin this page to a specific substance. In the current dataset, 0 EU annex records share 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 18640-74-9 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.