Flavors & Fragrances
REACH
2-acetylthiophene
CAS Number
88-15-3
EC Number
201-804-6
What is 2-acetylthiophene?
2-Acetylthiophene (CAS 88-15-3), also known as methyl 2-thienyl ketone, is a sulfur-containing heterocyclic compound used as a flavoring and fragrance ingredient.
Where is 2-acetylthiophene used?
- Flavor creation: roasted and savory notes in snack seasonings, meat analogs and processed foods
- Fragrance: smoky, woody or gourmand accords in fine fragrance and personal care
- Coffee and cocoa flavor systems: roasted sulfurous character
- Tobacco flavor formulations: warm and earthy profile
- It delivers a roasted, nutty and slightly meaty character for complex aroma profiles.
Commercial specifications
- Liquid at standard commercial purity levels
- Typically 98% and above
- Flavor-grade quality suitable for food and cosmetic applications
- Documentation to support regulatory compliance in major global markets
Other Names (Synonyms)
1-(2-Thienyl)-ethanone|methyl 2-thienyl ketone|1-thiophen-2-yl-ethanone|2-Acetothienone|2-Acetothiophene|Ethanone, 1-(2-thienyl)-|2-Thienyl methyl ketone|Ketone, methyl 2-thienyl
What are the physical properties of 2-acetylthiophene?
Melting Point 10.5 °C
Boiling Point 214.0 °C
Density 1.16711 g/cm³ (liquid) @ Temp: 65 °C; Press: 4.88 x 10⁵ Torr
Flash Point 196 °F
Appearance clear colorless to slightly yellow liquid
Color Clear pale yellow to light brown
Odor at 100.00 %. sulfurous nutty hazelnut walnut
Form Liquid
Water Solubility Insoluble in water.
Vapor Pressure 2.7 hPa (50 °C)
Refractive Index n 20/D 1.565(lit.)
Log P 1.250
How is 2-acetylthiophene classified and handled safely? Learn More
Danger
GHS06· Toxic GHS07· Irritant
Hazard Statements
H302 H302
H311 H311
H312 H312
H332 H332
Precautionary Statements
P261 P261
P262 P262
P264 P264
P270 P270
Which trade and regulatory codes apply to 2-acetylthiophene?
HS Code 29349990
UN Number 2810
ADR Class 6.1
Packing Group II
Storage Class 6.1A - Combustible acute toxic Cat. 1 and 2
very toxic hazardous materials
WGK (Germany) 3