W254606 Sigma-Aldrich


≥97%, FG

Synonym: Butyrone, Dipropyl ketone

  • CAS Number 123-19-3

  • Linear Formula (CH3CH2CH2)2CO

  • Molecular Weight 114.19

  •  FEMA Number 2546

  •  Beilstein Registry Number 1699049

  •  EC Number 204-608-9

  •  Council of Europe no. 2034

  •  MDL number MFCD00009403

  •  PubChem Substance ID 24901133

  •  Flavis number 7.058



Related Categories Alphabetical Listings, Certified Food Grade Products, E - H, Flavors and Fragrances, Follows IFRA Guidelines,
biological source   synthetic
grade   FG
  follows IFRA guidelines
reg. compliance   EU Regulation 1223/2009
  FDA 21 CFR (117)
  FDA 21 CFR (172.515)
  EU Regulation 1334/2008 & 178/2002
vapor density   3.93 (vs air)
vapor pressure   5.2 mmHg ( 20 °C)
assay   ≥97%
refractive index   n20/D 1.407(lit.)
bp   145 °C(lit.)
mp   −33 °C (lit.)
density   0.817 g/mL at 25 °C(lit.)
Documentation   see Safety & Documentation for available documents
Organoleptic   cheese; fruity; pineapple; sweet
food allergen   no known allergens
fragrance allergen   no known allergens


Biochem/physiol Actions

Taste at 5 ppm

Other Notes

Natural occurrence: Baked potato, cabbage, coffee, papaya, roasted peanut.

Download our Flavors and Fragrances Catalog to view our entire product line.

Subscribe to our Newsletter to keep up to date on our latest Flavors and Fragrances offerings.


1 kg in poly bottle

4, 8 kg in steel drum

Safety & Documentation
Protocols & Articles


GC Analysis of Volatiles in Roasted Coffee Beans on Omegawax® after SPME using a 50/30 μm DVB/Carboxen/PDMS Fiber

From our library of Articles, Sigma-Aldrich presents GC Analysis of Volatiles in Roasted Coffee Beans on Omegawax® after SPME using a 50/30 μm DVB/Carboxen/PDMS Fiber
Keywords: Chromatography, Gas chromatography, Mass spectrometry, Purification, Size-exclusion chromatography, Solid phase microextractions

Securing a Traceable Supply Chain for Food Grade Flavor Ingredients

Introduction Defining "Food Grade" Understanding "Food Grade" Versus "Industrial Grade" Top Questions to Ask a Flavor & Fragrances Supplier The Sigma-Aldrich Approach
Dr. Luke Grocholl
Quality Assurance Supervisor, Sigma-Aldrich Flavors & Fragrances
Keywords: Food & Beverage, Food Safety, Solvents

Related Content

Flavors and Fragrances Quality and Regulatory

From a comprehensive vendor approval process, to the testing of raw material at receipt as well as when product is ready to be shipped; we prove our dedication to supply chain transparency, every day.
Keywords: Allergens, Food Safety, Solvents

Peer-Reviewed Papers


Related Products

related product

Product #


Add to Cart

07475 Timestrip® Food
06732 Timestrip® Seafood

Technical Service:

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Bulk Ordering & Pricing:

Need larger quantities for your development, manufacturing or research applications?