Iso-butyric acid, 99%

Name: Iso-butyric acid, 99%
Brand: Vaqora Chemicals
SKU: VQ-019218

About Iso-butyric acid, 99%

Vaqora Chemicals supplies Iso-butyric acid (Synthesis grade), an aroma chemical registered under CAS number 79-31-2 with a typical assay of 99%. With the molecular formula C4H8O2, it has a molar mass of 88.11 g/mol. Systematically, it is named 2-methylpropanoic acid. Common synonyms include 2-Methylpropionic acid and Isobutyric Acid.

The material typically appears as a clear colourless liquid. Reported physical data include a melting point of -47 °C. Store in a cool, well-ventilated place, away from sources of ignition, with the container tightly sealed. The GHS classification uses the signal word “Warning”, so appropriate gloves, eye protection and ventilation are recommended.

It is commonly used for flavour formulation, fragrance compounding, aroma research and paints, coatings and inks. Typical end-use sectors are food and beverage processing, cosmetics and personal care and paints and coatings.

Standard pack sizes are 500 mL and 5 L, and every batch ships with a Certificate of Analysis (COA) and we export worldwide.

Typical applications

Flavour formulation
Fragrance compounding
Aroma research
Paints, coatings & inks

Industries

Specifications & identifiers

Chemical identifiers
Product name	Iso-butyric acid, 99%
Catalogue No.	VQ-019218
CAS Number	79-31-2
IUPAC name	2-methylpropanoic acid
Molecular formula	C₄H₈O₂
Molecular weight	88.11 g/mol
Exact mass	88.0524
Grade	Synthesis
Purity / assay	99%
HSN code	29157090
InChIKey	KQNPFQTWMSNSAP-UHFFFAOYSA-N
SMILES	CC(C)C(=O)O
PubChem CID	6590

Physical properties
Physical form	Liquid
Appearance	Clear colourless liquid
Melting point	-47 °C
LogP (XLogP3)	0.8
H-bond donors / acceptors	1 / 2
TPSA	37.3 Å²
UN number	UN 2529
Synonyms	2-Methylpropionic acid, Isobutyric Acid, Isobutanoic acid, Isopropylformic acid, Dimethylacetic acid, Propanoic acid, 2-methyl-, Cenex RP b2, alpha-Methylpropanoic acid, alpha-Methylpropionic acid, Acetic acid, dimethyl-, Propionic acid, 2-methyl-, Kyselina isomaselna

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H302Harmful if swallowed
H312Harmful in contact with skin

Precautionary statements: P264, P270, P280, P301 + P317, P302 + P352, P317, P321, P330, P362 + P364, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Other grades of CAS 79-31-2

AR

Iso-butyric acid, GR 99%+

CAS: 79-31-2
Formula: C₄H₈O₂
MW: 88.11 g/mol

VQ-019219

Reference Standard

Isobutyric Acid

CAS: 79-31-2
Formula: C₄H₈O₂
MW: 88.11 g/mol

In stock

Frequently asked questions

What is the CAS number of Iso-butyric acid, 99%?

The CAS Registry Number of Iso-butyric acid, 99% is 79-31-2. It is also known as 2-Methylpropionic acid, Isobutyric Acid, Isobutanoic acid.

What is the molecular formula and molecular weight of Iso-butyric acid, 99%?

Iso-butyric acid, 99% has the molecular formula C4H8O2 and a molecular weight of 88.11 g/mol. Its IUPAC name is 2-methylpropanoic acid.

Which grade and pack sizes of Iso-butyric acid, 99% can I order?

We supply Iso-butyric acid, 99% in Synthesis (99%) grade, in 500 mL, 5 L packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Iso-butyric acid, 99%?

Yes. Every lot of Iso-butyric acid, 99% is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Iso-butyric acid, 99% be shipped internationally?

Yes. Iso-butyric acid, 99% is classified as hazardous (UN 2529), so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.