33214-M

Acetic anhydride

puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., ≥99% (GC)

• Synonyme(s) : Acetanhydride, Acetic acid anhydride, Acetyl acetate, Acetyl anhydride, Ethanoic anhydride
• Formule linéaire : (CH₃CO)₂O
• Numéro CAS: 108-24-7
• Poids moléculaire : 102.09
• Numéro Beilstein : 385737
• Numéro CE : 203-564-8
• Numéro MDL: MFCD00008705
• Code UNSPSC : 12352100
• ID de substance PubChem : 329754473
• Nomenclature NACRES : NA.21

Propriétés

• Qualité: ACS reagent; puriss. p.a.
• Niveau de qualité: 100
• Agence: USP/NF; reag. ISO; reag. Ph. Eur.
• Densité de vapeur: 3.5 (vs air)
• Pression de vapeur: 10 mmHg ( 36 °C); 4 mmHg ( 20 °C)
• Pureté: ≥99% (GC)
• Température d'inflammation spontanée: 629 °F
• Limite d'explosivité: 10.3 %
• Impuretés: ≤0.003% non-volatile matter; ≤0.01% KMnO₄ red. matter (as O)
• Indice de réfraction: n20/D 1.390 (lit.)
• Point d'ébullition: 138-140 °C (lit.)
• Pf: −73 °C (lit.)
• Densité: 1.08 g/mL (lit.)
• Traces d'anions: chloride (Cl^-): ≤2 mg/kg; phosphate (PO₄^3-): ≤10 mg/kg; sulfate (SO₄^2-): ≤5 mg/kg
• Traces de cations: Al: ≤0.5 mg/kg; B: ≤0.02 mg/kg; Ba: ≤0.1 mg/kg; Ca: ≤0.5 mg/kg; Cd: ≤0.05 mg/kg; Co: ≤0.02 mg/kg; Cr: ≤0.05 mg/kg; Cu: ≤0.02 mg/kg; Fe: ≤0.1 mg/kg; Mg: ≤0.1 mg/kg; Mn: ≤0.02 mg/kg; Ni: ≤0.02 mg/kg; Pb: ≤0.1 mg/kg; Sn: ≤0.1 mg/kg; Zn: ≤0.2 mg/kg
• Adéquation: passes test for reaction against H₂SO₄
• Chaîne SMILES: CC(=O)OC(C)=O
• InChI: 1S/C4H6O3/c1-3(5)7-4(2)6/h1-2H3
• Clé InChI: WFDIJRYMOXRFFG-UHFFFAOYSA-N

Description

Description générale

Acetic anhydride is a colorless liquid. On dissolution in water, it undergoes solvolysis to afford acetic acid. It is widely employed as acetylation reagent for the acetylation of various alcohols. Wacher process (starting reagent + a ketene) and Knapsack process (starting reagent = acetaldehyde) have been reported for the industrial preparation of acetic anhydride. It is employed as solvent for various organic reactions.

Application

• Insights into the Mechanism of Catalytic Activity of Plasmodium Parasite Malate-Quinone Oxidoreductase.: This study delves into the catalytic mechanisms of malate-quinone oxidoreductase, a target for antimalarial drugs, detailing the role of acetic anhydride in probing the enzyme′s structure and function (Ito et al., 2024).
• Adsorption simulation of 2,4-D pesticide on novel zinc-based 2-amino-4-(1H-1,2,4-triazole-4-yl)benzoic acid coordination complexes using machine learning approach.: Research exploring zinc-based coordination complexes for pesticide adsorption, where acetic anhydride plays a crucial role in the synthesis process, improving adsorption characteristics (Mansab and Rafique, 2024).
• Lysine acetylation of Hsp16.3: Effect on its structure, chaperone function and influence towards the growth of Mycobacterium tuberculosis.: Investigates the impact of lysine acetylation, facilitated by acetic anhydride, on the tuberculosis pathogen, providing insights into bacterial pathogenesis and potential therapeutic targets (Barik et al., 2024).

Informations sur la sécurité

• Pictogrammes: GHS02,GHS06,GHS05
• Mention d'avertissement: Danger
• Mentions de danger: H226,H302,H314,H330
• Conseils de prudence: P210 - P280 - P301 + P312 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• Classification des risques: Acute Tox. 2 Inhalation - Acute Tox. 4 Oral - Eye Dam. 1 - Flam. Liq. 3 - Skin Corr. 1B
• Code de la classe de stockage: 3 - Flammable liquids
• Classe de danger pour l'eau (WGK): WGK 1
• Point d'éclair (°F): 120.2 °F - closed cup
• Point d'éclair (°C): 49 °C - closed cup