19270

Butyric anhydride

purum, ≥97.0% (NT)

• Synonym(s): Butanoic anhydride
• Linear Formula: (CH₃CH₂CH₂CO)₂O
• CAS Number: 106-31-0
• Molecular Weight: 158.19
• Beilstein: 1099474
• EC Number: 203-383-4
• MDL number: MFCD00009389
• UNSPSC Code: 12352100
• PubChem Substance ID: 329751708
• NACRES: NA.22

Properties

• vapor density: 5.45 (vs air)
• Quality Level: 100
• vapor pressure: 10 mmHg ( 79.5 °C)
• grade: purum
• Assay: ≥97.0% (NT)
• autoignition temp.: 535 °F
• expl. lim.: 1.1 %, 104 °F; 7.6 %, 144 °F
• refractive index: n20/D 1.413 (lit.); n20/D 1.413
• bp: 198-199 °C (lit.)
• mp: −75-−66 °C (lit.)
• solubility: alcohol: soluble (with decomposition)(lit.); diethyl ether: soluble(lit.); water: soluble (with decomposition)(lit.)
• density: 0.967 g/mL at 25 °C (lit.)
• functional group: anhydride; ester
• SMILES string: CCCC(=O)OC(=O)CCC
• InChI: 1S/C8H14O3/c1-3-5-7(9)11-8(10)6-4-2/h3-6H2,1-2H3
• InChI key: YHASWHZGWUONAO-UHFFFAOYSA-N

Description

Application

Butyric anhydride was used in the synthesis of:

• dibutyrylchitin, a lipophilic chitin diester
• N-(2-acetamido-2-deoxy-β-D-glucopyranosyl)-n-butyramide
• butyric-ester derivatives of hyaluronic acid

Safety Information

• Pictograms: GHS05,GHS07
• Signal Word: Danger
• Hazard Statements: H302,H314
• Precautionary Statements: P280 - P301 + P312 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338 - P363
• Hazard Classifications: Acute Tox. 4 Oral - Eye Dam. 1 - Skin Corr. 1B
• Supplementary Hazards: EUH014
• Storage Class Code: 8A - Combustible corrosive hazardous materials
• WGK: WGK 1
• Flash Point(F): 188.6 °F - closed cup
• Flash Point(C): 87 °C - closed cup
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves