Isobutyric anhydride, 97%

Description

CAS: 97-72-3 | C8H14O3 | 158.197 g/mol

Isobutyric anhydride is used in the preparation of 4-O-isobutyryl derivative by reacting with octyl beta-D-glucopyranoside using C₂-symmetric chiral 4-pyrrolidinopyridine as a catalyst. It acts as a starting material for esters like sucrose acetate isobutyrate, dyes and agrochemicals. It finds application as fragrance intermediate and flavorings.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Applications
Isobutyric anhydride is used in the preparation of 4-O-isobutyryl derivative by reacting with octyl beta-D-glucopyranoside using C₂-symmetric chiral 4-pyrrolidinopyridine as a catalyst. It acts as a starting material for esters like sucrose acetate isobutyrate, dyes and agrochemicals. It finds application as fragrance intermediate and flavorings.

Solubility
Miscible with water and ether.

Notes
Moisture sensitive. Incompatible with strong oxidizing agents and strong bases.

Specifications

Chemical Identifiers

• CAS: 97-72-3
• Molecular Formula: C8H14O3
• Molecular Weight (g/mol): 158.197
• MDL Number: MFCD00008913
• InChI Key: LSACYLWPPQLVSM-UHFFFAOYSA-N
• Synonym: isobutyric anhydride, isobutyric acid anhydride, propanoic acid, 2-methyl-, anhydride, 2-methylpropanoic anhydride, isobutyricanhydride, isobutyryl anhydride, 2-methylpropionic anhydride, unii-n85a80fjdt, n85a80fjdt, 2-methylpropanoic acid anhydride
• PubChem CID: 7346
• ChEBI: CHEBI:84261
• IUPAC Name: 2-methylpropanoyl 2-methylpropanoate
• SMILES: CC(C)C(=O)OC(=O)C(C)C

• Melting Point: -56°C
• Density: 0.954
• Boiling Point: 182°C
• Flash Point: 67°C (152°F)
• Odor: Pungent
• Refractive Index: 1.406
• Quantity: 100 mL
• UN Number: UN2922
• Beilstein: 386267
• Sensitivity: Moisture sensitive
• Solubility Information: Miscible with water and ether.
• Formula Weight: 158.2
• Percent Purity: 97%
• Chemical Name or Material: Isobutyric anhydride

Safety and Handling

Hazard Category	H227-H311+H331-H314
Hazard Statement	GHS H Statement H314-H318-H302-H312-H227 Causes severe skin burns and eye damage. Causes serious eye damage. Harmful if swallowed. Harmful in contact with skin. Combustible liquid.
Precautionary Statement	P210-P233-P240-P243-P260-P264b-P271-P280-P301+P330+P331-P303+P361+P353-P304+P340-P305+P351+P338-P310-P311-P363-P374-P501c
DOTInformation	Transport Hazard Class: 8; Packing Group: II; Proper Shipping Name: CORROSIVE LIQUIDS, TOXIC, N.O.S.
EINECSNumber	202-603-6
TSCA	Yes
Recommended Storage	Ambient temperatures; Store under Nitrogen

SDS

RUO – Research Use Only