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W270008 Sigma-Aldrich

Methyl cyclopentenolone

anhydrous, 98%, FCC, FG

Synonym: Cyclotene

  • CAS Number 80-71-7

  • Empirical Formula (Hill Notation) C6H8O2

  • Molecular Weight 112.13

  •  FEMA Number 2700

  •  EC Number 201-303-2

  •  Council of Europe no. 758

  •  PubChem Substance ID 24901268

  •  Flavis number 7.056



Related Categories Alphabetical Listings, Certified Food Grade Products, Flavors and Fragrances, Follows IFRA Guidelines, Halal Certified Products,
biological source   synthetic
grade   FG
  follows IFRA guidelines
reg. compliance   EU Regulation 1223/2009
  FDA 21 CFR (172.515)
  EU Regulation 1334/2008 & 178/2002
assay   98%
mp   104-108 °C
Documentation   see Safety & Documentation for available documents
Organoleptic   caramel; coffee; maple; roasted; sweet
food allergen   no known allergens
fragrance allergen   no known allergens


General description

Methyl cyclopentenolone has been identified in maple syrup, Wasanbon sugar and raw cane sugar.


This material is found primarily as the enol form (CAS 80-71-7) in its pure, anhydrous state. Readily forms the diketone form (CAS 765-70-8) in solution.


1 kg in poly bottle

5 kg in poly drum

100 g in poly bottle

25 kg in fiber drum

Other Notes

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Safety & Documentation

Safety Information

NONH for all modes of transport
WGK Germany 

New Product Offerings
Protocols & Articles


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

Understanding the Complexities of Kosher Ingredients

Introduction What is Kosher Product Considerations for Kosher Certification Kosher's Added Benefit to the Food Industry Sigma-Aldrich's Kosher Experience and Offering
Dr. Luke Grocholl1, Rabbi Gershon Segal

1Dr. Luke Grocholl, Quality Assurance Supervisor, Sigma-Aldrich Flavors & Fragrances
Keywords: Fermentation, Food & Beverage, Safety industry

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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


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