Isobutyric anhydride, 98%

Name: Isobutyric anhydride, 98%
Brand: Vaqora Chemicals
SKU: VQ-009143

About Isobutyric anhydride, 98%

Vaqora Chemicals supplies Isobutyric anhydride in Synthesis grade, an acylating agent registered under CAS number 97-72-3 with a typical assay of 98%. With the molecular formula C8H14O3, it has a molar mass of 158.19 g/mol. Systematically, it is named 2-methylpropanoyl 2-methylpropanoate. Common synonyms include 2-Methylpropionic anhydride and Iso-butyric anhydride.

In its supplied form it is a colourless liquid. Reported physical data include a melting point of -56 °C and a density of 0.954 g/mL. Keep containers tightly closed in a cool, well-ventilated area away from heat and ignition sources. Under GHS it is labelled “Danger”, so handle it with suitable PPE and consult the SDS.

Key uses span organic synthesis, fine chemical synthesis, catalysis and dyes and pigments manufacture. Buyers come mainly from pharmaceutical manufacturing, academic and industrial research and agrochemical production.

Available in 500 mL, 2.5 L and 200 kg packs, Isobutyric anhydride is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

Organic synthesis
Fine chemical synthesis
Catalysis
Dyes & pigments manufacture
Food & flavour applications

Industries

Specifications & identifiers

Chemical identifiers
Product name	Isobutyric anhydride, 98%
Catalogue No.	VQ-009143
CAS Number	97-72-3
IUPAC name	2-methylpropanoyl 2-methylpropanoate
Molecular formula	C₈H₁₄O₃
Molecular weight	158.19 g/mol
Exact mass	158.0943
Grade	Synthesis
Purity / assay	98%
HSN code	29420090
InChIKey	LSACYLWPPQLVSM-UHFFFAOYSA-N
SMILES	CC(C)C(=O)OC(=O)C(C)C
PubChem CID	7346

Physical properties
Physical form	Liquid
Appearance	Colourless liquid
Melting point	-56 °C
Density	0.954 g/mL
LogP (XLogP3)	2
H-bond donors / acceptors	0 / 3
TPSA	43.4 Å²
Synonyms	2-Methylpropionic anhydride, Iso-butyric anhydride, Isobutyric acid anhydride, Propanoic acid, 2-methyl-, anhydride, Isobutyryl anhydride, isobutanoic anhydride, 2-Methylpropanoic acid anhydride, Propanoic acid, 2-methyl-, 1,1'-anhydride, 2-thiophenecarboxaldehyde, 5-[[5-[(5-methoxy-2-thienyl)ethynyl]-2-thienyl]ethynyl]-, 2-thiophenecarboxaldehyde, 5-((5-((5-methoxy-2-thienyl)ethynyl)-2-thienyl)ethynyl)-, 2Methylpropanoic anhydride, Propanoic acid, 2methyl, anhydride

Safety & hazard information (GHS)

Corrosive

Toxic

Harmful / irritant

Signal word: Danger

Hazard statements

H301Toxic if swallowed
H302Harmful if swallowed
H311Toxic in contact with skin
H312Harmful in contact with skin
H314Causes severe skin burns and eye damage
H318Causes serious eye damage
H331Toxic if inhaled

Precautionary statements: P260, P261, P262, P264, P264 + P265, P270, P271, P280, P301 + P316, P301 + P317, P301 + P330 + P331, P302 + P352, P302 + P361 + P354, P304 + P340, P305 + P354 + P338, P316, P317, P321, P330, P361 + P364, P362 + P364, P363, P403 + P233, P405

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

Frequently asked questions

What is the CAS number of Isobutyric anhydride, 98%?

The CAS Registry Number of Isobutyric anhydride, 98% is 97-72-3. It is also known as 2-Methylpropionic anhydride, Iso-butyric anhydride, Isobutyric acid anhydride.

What is the molecular formula and molecular weight of Isobutyric anhydride, 98%?

Isobutyric anhydride, 98% has the molecular formula C8H14O3 and a molecular weight of 158.19 g/mol. Its IUPAC name is 2-methylpropanoyl 2-methylpropanoate.

Which grade and pack sizes of Isobutyric anhydride, 98% can I order?

We supply Isobutyric anhydride, 98% in Synthesis (98%) grade, in 500 mL, 2.5 L, 200 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Isobutyric anhydride, 98%?

Yes. Every lot of Isobutyric anhydride, 98% 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 Isobutyric anhydride, 98% be shipped internationally?

Yes. Isobutyric anhydride, 98% is classified as hazardous, 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.