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Key Documents

Safety Information

W371602

Sigma-Aldrich

4-Methylthiazole

≥98%, FG

Synonym(s):

4-methyl-1,3-thiazole

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About This Item

Empirical Formula (Hill Notation):
C4H5NS
CAS Number:
Molecular Weight:
99.15
FEMA Number:
3716
EC Number:
Council of Europe no.:
11627
MDL number:
UNSPSC Code:
12164502
PubChem Substance ID:
Flavis number:
15.035
NACRES:
NA.21
Organoleptic:
green; vegetable; nutty
grade:
FG
Halal
Kosher
biological source:
synthetic
Agency:
meets purity specifications of JECFA
food allergen:
no known allergens

biological source

synthetic

Quality Level

grade

FG
Halal
Kosher

Agency

meets purity specifications of JECFA

reg. compliance

EU Regulation 1334/2008 & 178/2002

Assay

≥98%

refractive index

n20/D 1.524 (lit.)

bp

133-134 °C (lit.)

density

1.09 g/mL at 25 °C (lit.)

application(s)

flavors and fragrances

Documentation

see Safety & Documentation for available documents

food allergen

no known allergens

Organoleptic

green; vegetable; nutty

SMILES string

Cc1cscn1

InChI

1S/C4H5NS/c1-4-2-6-3-5-4/h2-3H,1H3

InChI key

QMHIMXFNBOYPND-UHFFFAOYSA-N

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General description

4-Methylthiazole is one of the key volatile flavor products formed during the thermal degradation of thiamin. It is reported to be found in roasted peanuts and roasted beef.

Pictograms

FlameExclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Acute Tox. 4 Oral - Eye Irrit. 2 - Flam. Liq. 3 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

3 - Flammable liquids

WGK

WGK 3

Flash Point(F)

89.6 °F - closed cup

Flash Point(C)

32 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

FSL

Group 4: Flammable liquids
Type 2 petroleums
Hazardous rank III
Water insoluble liquid

JAN Code

W371602-VAR-K:
W371602-1KG-K:4548173980034
W371602-SAMPLE:
W371602-100G:
W371602-SAMPLE-K:
W371602-100G-K:4548173980027
W371602-1KG:
W371602-5KG-K:4548173980041
W371602-5KG:
W371602-BULK-K:


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Nitrogen-containing heterocyclic compounds identified in the volatile flavor constituents of roasted beef.
Hartman GJ, et al.
Journal of Agricultural and Food Chemistry, 31(5), 1030-1033 (1983)
Thermally degraded thiamin: a potent source of interesting flavor compounds.
Guntert M, et al.
ACS Symp. Ser., 490, 140?163-140?163 (1992)
Thiazoles, oxazoles, and oxazolines identified in the volatile flavor of roasted peanuts.
Lee MH, et al.
Journal of Agricultural and Food Chemistry, 29(3), 684-686 (1981)
Volatile products formed from the thermal degradation of thiamin at high and low moisture levels.
Hartman GJ, et al.
Journal of Agricultural and Food Chemistry, 32(5), 1015-1018 (1984)
M K Cho et al.
Toxicology, 146(2-3), 111-122 (2000-05-18)
Microsomal epoxide hydrolase (mEH) is inducible by a number of xenobiotics. Induction of mEH by certain chemopreventive agents may implicate the protective effect. In contrast, many of carcinogenic agents also induce the enzyme. The hepatotoxicity and mEH expression by methylthiazoles

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