Isobutyric acid anhydride

Modify Date: 2026-08-05 22:34:52

Isobutyric acid anhydride Structure
Isobutyric acid anhydride structure
Common Name Isobutyric acid anhydride
CAS Number 97-72-3 Molecular Weight 158.195
Density 1.0±0.1 g/cm3 Boiling Point 183.6±8.0 °C at 760 mmHg
Molecular Formula C8H14O3 Melting Point -53 °C
MSDS Chinese USA Flash Point 59.4±0.0 °C
Symbol GHS05 GHS06
GHS05, GHS06
Signal Word Danger

Summary: Isobutyric acid anhydride (Chinese name: 异丁酸酐,CAS number: 97-72-3,molecular formula: C8H14O3,molecular weight: 158.195) is a transparent liquid with a melting point of -53°C and a boiling point of 183.6±8.0°C. For research-use only, not for medical or clinical usage.


 Names

This table lists Chinese names, IUPAC names and various aliases of this chemical substance.

Name isobutyric acid anhydride
Synonym More Synonyms

 Chemical & Physical Properties

This table shows physicochemical parameters including melting point, boiling point, density, solubility and optical rotation. Missing data is marked as N/A.

Density 1.0±0.1 g/cm3
Boiling Point 183.6±8.0 °C at 760 mmHg
Melting Point -53 °C
Molecular Formula C8H14O3
Molecular Weight 158.195
Flash Point 59.4±0.0 °C
Exact Mass 158.094299
PSA 43.37000
LogP 1.27
Vapour density 5.45 (vs air)
Vapour Pressure 0.8±0.3 mmHg at 25°C
Index of Refraction 1.418
InChIKey LSACYLWPPQLVSM-UHFFFAOYSA-N
SMILES CC(C)C(=O)OC(=O)C(C)C
Water Solubility decomposes

 MSDS

This table provides MSDS information including hazard classification, first‑aid, fire‑fighting, spill handling, operation and storage instructions.

 Safety Information

This table covers safety warnings, protective measures, incompatible substances and disposal guidelines for this compound.

Symbol GHS05 GHS06
GHS05, GHS06
Signal Word Danger
Hazard Statements H301 + H311-H314
Precautionary Statements P280-P301 + P310-P305 + P351 + P338-P310
Personal Protective Equipment Eyeshields;Faceshields;full-face respirator (US);Gloves;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter
Hazard Codes C:Corrosive;
Risk Phrases R21/22;R34
Safety Phrases S26-S36/37/39-S45
RIDADR 2922
WGK Germany 3
RTECS NQ5550000
Packaging Group II
Hazard Class 8
HS Code 2915900090

 Synthetic Route

This table presents publicly reported synthetic routes, reaction conditions, reactants and product information of the compound.

 Customs

This table shows customs‑related data including HS‑code, tariff and regulatory conditions for import and export.

HS Code 2915900090
Summary 2915900090 other saturated acyclic monocarboxylic acids and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward) MFN tariff:5.5% General tariff:30.0%

 Articles3

More Articles

This table lists relevant public references with title, journal and publication metadata for this compound.

A catalytic one-step process for the chemo- and regioselective acylation of monosaccharides.

J. Am. Chem. Soc. 129(42) , 12890-5, (2007)

An organocatalytic method for the chemo- and regioselective acylation of monosaccharides has been developed. Treatment of octyl beta-D-glucopyranoside with isobutyric anhydride in the presence of 10 m...

Theoretical prediction of selectivity in kinetic resolution of secondary alcohols catalyzed by chiral DMAP derivatives.

J. Am. Chem. Soc. 134(22) , 9390-9, (2012)

The mechanism of esterification of the secondary alcohol 1-(1-naphthyl)ethanol 9 by isobutyric anhydride catalyzed by 4-pyrrolidinopyridine (PPY, 11) and a series of single enantiomer atropisomeric 4-...

Three-Component Supramolecular System with Multistimuli-Responsive Properties in Water.

Chem. Asian J. 10 , 1690-7, (2015)

Hyperbranched polyethylenimine terminated with isobutyramide groups (HPEI-IBAm), 4-(phenylazo)benzoic acid (PABA), and α-cyclodextrin (α-CD) were assembled together at pH≈7 to form the three-component...

 Isobutyric acid anhydrideBioassay

View more

This table contains target information, in‑vitro & in‑vivo assay data for this compound.

Name: p53 small molecule agonists, cell-based qHTS assay
Source: 824
External Id: P53344
Name: p53 small molecule agonists, cell-based qHTS assay with human liver microsomes
Source: 824
Target: tumor suppressor p53 [Homo sapiens]
External Id: P53MS233
Name: p53 small molecule agonists, cell-based qHTS assay with rat liver microsomes
Source: 824
Target: tumor suppressor p53 [Homo sapiens]
External Id: P53MS898
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 Synonyms

This table collects all English aliases, systematic names and CAS‑related synonyms of the compound.

1Y1&VOVY1&1
Isobutyric acid anhydride
MFCD00008913
2-Methylpropanoic anhydride
2-methylpropanoyl 2-methylpropanoate
Propanoic acid, 2-methyl-, anhydride
EINECS 202-603-6
Isobutyric anhydride

 Isobutyric acid anhydride | FAQ

This section contains frequently‑asked‑questions about this compound, including basic parameters, properties, storage conditions and corresponding answers.

Q: What is the English name of isobutyric acid anhydride?
A: The English name of isobutyric acid anhydride is isobutyric acid anhydride.
Q: What is the molecular formula of isobutyric acid anhydride?
A: Molecular formula of isobutyric acid anhydride is C8H14O3.
Q: What is the LogP of isobutyric acid anhydride?
A: LogP of isobutyric acid anhydride is 1.27.
Q: What is the molecular weight of isobutyric acid anhydride?
A: Molecular weight of isobutyric acid anhydride is 158.195.
Q: What is the CAS number of isobutyric acid anhydride?
A: CAS number of isobutyric acid anhydride is 97-72-3.
Q: What English synonyms does isobutyric acid anhydride have?
A: English synonyms of isobutyric acid anhydride: 1Y1&VOVY1&1, Isobutyric acid anhydride, MFCD00008913, 2-Methylpropanoic anhydride, 2-methylpropanoyl 2-methylpropanoate, Propanoic acid, 2-methyl-, anhydride, EINECS 202-603-6, Isobutyric anhydride.
Q: What is the InChIKey of isobutyric acid anhydride?
A: InChIKey of isobutyric acid anhydride is LSACYLWPPQLVSM-UHFFFAOYSA-N.
Q: What is the polar surface area (PSA) of isobutyric acid anhydride?
A: Polar surface area (PSA) of isobutyric acid anhydride is 43.37000.
Q: What is the safety information for isobutyric acid anhydride?
A: Safety information for isobutyric acid anhydride: S26-S36/37/39-S45.
Q: How is the water solubility of isobutyric acid anhydride?
A: Water solubility of isobutyric acid anhydride: decomposes.

 Isobutyric acid anhydridefactory

This table lists manufacturers and suppliers of this compound, including vendor names and product supply reference information.

Shanghai Nianxing Industrial Co., Ltd
Dayang Chem (Hangzhou) Co., Ltd.
Henan Tianfu Chemical Co., Ltd.
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