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W222208 Sigma-Aldrich

Isobutyric acid

≥99%, FCC, FG

Synonym: 2-Methylpropionic acid, Isobutanoic acid

  • CAS Number 79-31-2

  • Linear Formula (CH3)2CHCO2H

  • Molecular Weight 88.11

  •  FEMA Number 2222

  •  Beilstein/REAXYS Number 635770

  •  EC Number 201-195-7

  •  Council of Europe no. 6

  •  MDL number MFCD00002658

  •  PubChem Substance ID 24900936

  •  Flavis number 8.006

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Properties

Related Categories Alphabetical Listings, Certified Food Grade Products, Flavors and Fragrances, H-J, I-L,
biological source   synthetic
grade   FG
  Kosher
reg. compliance   FCC
  FDA 21 CFR (172.515)
  EU Regulation 1334/2008 & 872/2012
vapor density   3.04 (vs air)
vapor pressure   1.5 mmHg ( 20 °C)
InChI Key   KQNPFQTWMSNSAP-UHFFFAOYSA-N
assay   ≥99%
autoignition temp.   824 °F
expl. lim.   10 %
refractive index   n20/D 1.393 (lit.)
bp   153-154 °C (lit.)
mp   −47 °C (lit.)
density   0.95 g/mL at 25 °C (lit.)
Agency/Method   meets purity specifications of JECFA
Documentation   see Safety & Documentation for available documents
Organoleptic   butter; acidic; rancid
food allergen   no known allergens

Description

General description

Isobutyric acid is a volatile fatty acid that can be used as a flavoring agent. It occurs naturally in Ceratonia siliqua L. The gum obtained from the kernels of this species is used as a thickener in the food industry.

Packaging

1 kg in glass bottle

5, 10, 25 kg in composite drum

Biochem/physiol Actions

Odor at 10 ppm

Taste at 15 ppm

Other Notes

Natural occurrence: Roman chamomile, strawberry, dairy products.

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Safety & Documentation

Safety Information

Symbol 
Signal word 
Danger
Hazard statements 
RIDADR 
UN 2529 8(3) / PGIII
WGK Germany 
1
RTECS 
NQ4375000
Flash Point(F) 
131 °F
Flash Point(C) 
55 °C

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Protocols & Articles

Articles

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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Keywords: Allergens, Food Safety, Solvents

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