MilliporeSigma
All Photos(1)

Documents

W222208

Sigma-Aldrich

Isobutyric acid

≥99%, FCC, FG

Sign Into View Organizational & Contract Pricing

Synonym(s):
Isobutanoic acid, 2-Methylpropionic acid
Linear Formula:
(CH3)2CHCO2H
CAS Number:
Molecular Weight:
88.11
FEMA Number:
2222
Beilstein/REAXYS Number:
635770
EC Number:
Council of Europe no.:
6
MDL number:
PubChem Substance ID:
Flavis number:
8.006
NACRES:
NA.21

biological source

synthetic

Quality Level

grade

FG
Kosher

agency

meets purity specifications of JECFA

reg. compliance

EU Regulation 1334/2008 & 872/2012
FCC
FDA 21 CFR 172.515

vapor density

3.04 (vs air)

vapor pressure

1.5 mmHg ( 20 °C)

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.)

application(s)

flavors and fragrances

documentation

see Safety & Documentation for available documents

food allergen

no known allergens

organoleptic

butter; acidic; rancid

SMILES string

CC(C)C(O)=O

InChI

1S/C4H8O2/c1-3(2)4(5)6/h3H,1-2H3,(H,5,6)

InChI key

KQNPFQTWMSNSAP-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

Related Categories

Compare Similar Items

View Full Comparison

Show Differences

1 of 4

This Item
W2222169649958360
Isobutyric acid ≥99%, FCC, FG

W222208

Isobutyric acid

Isobutyric acid natural, ≥99%, FCC, FG

W222216

Isobutyric acid

Isobutyric acid certified reference material, TraceCERT®, Manufactured by: Sigma-Aldrich Production GmbH, Switzerland

96499

Isobutyric acid

Isobutyric acid puriss. p.a., ≥99.5%

58360

Isobutyric acid

organoleptic

butter; acidic; rancid

organoleptic

butter; acidic; rancid

organoleptic

-

organoleptic

-

biological source

synthetic

biological source

-

biological source

-

biological source

-

food allergen

no known allergens

food allergen

no known allergens

food allergen

-

food allergen

-

assay

≥99%

assay

≥99%

assay

-

assay

≥99.5% (GC)

agency

meets purity specifications of JECFA

agency

follows IFRA guidelines, meets purity specifications of JECFA

agency

-

agency

-

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.

Biochem/physiol Actions

Odor at 10 ppm
Taste at 15 ppm

Other Notes

Natural occurrence: Roman chamomile, strawberry, dairy products.

signalword

Danger

Hazard Classifications

Acute Tox. 3 Dermal - Acute Tox. 4 Oral - Eye Dam. 1 - Flam. Liq. 3 - Skin Corr. 1B

Storage Class

3 - Flammable liquids

wgk_germany

WGK 1

flash_point_f

131.0 °F - closed cup

flash_point_c

55 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Documents related to the products that you have purchased in the past have been gathered in the Document Library for your convenience.

Visit the Document Library

Difficulty Finding Your Product Or Lot/Batch Number?

Product numbers are combined with Pack Sizes/Quantity when displayed on the website (example: T1503-25G). Please make sure you enter ONLY the product number in the Product Number field (example: T1503).

Example:

T1503
Product Number
-
25G
Pack Size/Quantity

Additional examples:

705578-5MG-PW

PL860-CGA/SHF-1EA

MMYOMAG-74K-13

1000309185

enter as 1.000309185)

Having trouble? Feel free to contact Technical Service for assistance.

Lot and Batch Numbers can be found on a product's label following the words 'Lot' or 'Batch'.

Aldrich Products

  • For a lot number such as TO09019TO, enter it as 09019TO (without the first two letters 'TO').

  • For a lot number with a filling-code such as 05427ES-021, enter it as 05427ES (without the filling-code '-021').

  • For a lot number with a filling-code such as STBB0728K9, enter it as STBB0728 without the filling-code 'K9'.

Not Finding What You Are Looking For?

In some cases, a COA may not be available online. If your search was unable to find the COA you can request one.

Request COA

Customers Also Viewed

Slide 1 of 10

1 of 10

Butyl butyryllactate ≥98%, FCC, FG

Sigma-Aldrich

W219002

Butyl butyryllactate

Hexanoic acid ≥98%, FCC, FG

Sigma-Aldrich

W255904

Hexanoic acid

Propionic acid ≥99.5%, FCC, FG

Sigma-Aldrich

W292400

Propionic acid

Butyric acid ≥99%, FG

Sigma-Aldrich

W222100

Butyric acid

Valeraldehyde ≥97%, FG

Sigma-Aldrich

W309818

Valeraldehyde

Isovaleric acid analytical standard

Supelco

78651

Isovaleric acid

Valeric acid ≥99%, FCC, FG

Sigma-Aldrich

W310107

Valeric acid

Butyric acid ≥99%

Sigma-Aldrich

B103500

Butyric acid

Octanoic acid natural, ≥98%, FG

Sigma-Aldrich

W279927

Octanoic acid

Burdock GA
Encyclopedia of Food and Color Additives, 1, 1463-1464 (1997)
Manipulation of colonic bacteria and volatile fatty acid production by dietary high amylose maize (amylomaize) starch granules
Wang X, et al
Journal of Applied Microbiology, 93(3), 390-397 (2002)
Effect of temperature on isobutyric acid loss during roasting of carob kibble
Berna A, et al
Journal of Agricultural and Food Chemistry, 45(10), 4084-4087 (1997)
A Vyalikh et al.
Physical chemistry chemical physics : PCCP, 9(18), 2249-2257 (2007-05-10)
Solid state deuterium NMR has been used to study the molecular motion of d(6)-isobutyric acid (d(6)-iBA) in the pure (unconfined) state and confined in the cylindrical pores of two periodic mesoporous silica materials (MCM-41, pore size 3.3 nm and SBA-15
Ritu Lal et al.
The Journal of pharmacology and experimental therapeutics, 330(3), 911-921 (2009-06-09)
Baclofen is a racemic GABA(B) receptor agonist that has a number of significant pharmacokinetic limitations, including a narrow window of absorption in the upper small intestine and rapid clearance from the blood. Arbaclofen placarbil is a novel transported prodrug of

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

Contact Technical Service