I1754

Isobuttersäure

99%

• Synonym(e): 2-Methyl-propionsäure
• Lineare Formel: (CH₃)₂CHCO₂H
• CAS-Nummer: 79-31-2
• Molekulargewicht: 88.11
• Beilstein: 635770
• EG-Nummer: 201-195-7
• MDL-Nummer: MFCD00002658
• UNSPSC-Code: 12352100
• PubChem Substanz-ID: 24895944
• NACRES: NA.22

Eigenschaften

• Dampfdichte: 3.04 (vs air)
• Dampfdruck: 1.5 mmHg ( 20 °C)
• Assay: 99%
• Form: liquid
• Selbstzündungstemp.: 824 °F
• Expl.-Gr.: 10 %
• Brechungsindex: n20/D 1.393 (lit.)
• bp: 153-154 °C (lit.)
• mp (Schmelzpunkt): −47 °C (lit.)
• Dichte: 0.95 g/mL at 25 °C (lit.)
• SMILES String: CC(C)C(O)=O
• InChI: 1S/C4H8O2/c1-3(2)4(5)6/h3H,1-2H3,(H,5,6)
• InChIKey: KQNPFQTWMSNSAP-UHFFFAOYSA-N

Beschreibung

Allgemeine Beschreibung

Isobutyric acid is a carboxylic acid used as a building block in the production of active pharmaceutical ingredients (APIs).

Anwendung

Isobutyric acid can be used:

• to synthesize butyl isobutyrate via esterification with n-butanol using lipases
• as a precursor for Methacrylic acid (MAA) through catalytic oxidative dehydrogenation. It can be produced through fermentative pathways

Sicherheitshinweise

• Piktogramme: GHS02,GHS06,GHS05
• Signalwort: Danger
• H-Sätze: H226,H302,H311,H314
• P-Sätze: P210 - P233 - P280 - P301 + P312 - P303 + P361 + P353 - P305 + P351 + P338
• Gefahreneinstufungen: Acute Tox. 3 Dermal - Acute Tox. 4 Oral - Eye Dam. 1 - Flam. Liq. 3 - Skin Corr. 1B
• Lagerklassenschlüssel: 3 - Flammable liquids
• WGK: WGK 1
• Flammpunkt (°F): 131.0 °F - closed cup
• Flammpunkt (°C): 55 °C - closed cup
• Persönliche Schutzausrüstung: Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter