126136

Methylmalonsäure-diethylester

99%

• Synonym(e): Diethyl-methylmalonat
• Lineare Formel: CH₃CH(COOC₂H₅)₂
• CAS-Nummer: 609-08-5
• Molekulargewicht: 174.19
• Beilstein: 637028
• EG-Nummer: 210-175-7
• MDL-Nummer: MFCD00009162
• UNSPSC-Code: 12352100
• PubChem Substanz-ID: 24847702
• NACRES: NA.22

Eigenschaften

• Qualitätsniveau: 200
• Assay: 99%
• Brechungsindex: n20/D 1.413 (lit.)
• bp: 198-199 °C (lit.); 78-80 °C/10 mmHg
• Dichte: 1.022 g/mL at 20 °C (lit.)
• SMILES String: CCOC(=O)C(C)C(=O)OCC
• InChI: 1S/C8H14O4/c1-4-11-7(9)6(3)8(10)12-5-2/h6H,4-5H2,1-3H3
• InChIKey: UPQZOUHVTJNGFK-UHFFFAOYSA-N

Beschreibung

Allgemeine Beschreibung

Diethyl methylmalonate reacts with 2-cyclohexenone under abnormal Michael conditions form 2-(3-oxocyclohexyl)-2-cyclohexenone. It causes the alkylation of poly(chloromethylstyrene) during pahse transfer catalysis.

Anwendung

Diethyl methylmalonate was used to investigate the effect of direct supplementation of the medium with di-ester of methylmalonate on erythromycin fermentation in Saccharopolyspora erythraea mutB strain.

Sicherheitshinweise

• Lagerklassenschlüssel: 10 - Combustible liquids
• WGK: WGK 3
• Flammpunkt (°F): 179.6 °F - closed cup
• Flammpunkt (°C): 82 °C - closed cup
• Persönliche Schutzausrüstung: Eyeshields, Gloves, type ABEK (EN14387) respirator filter