Butanoic acid, 2-(cyanomethyl)-3-oxo-, ethyl ester, also known as ethyl 2-(cyanomethyl)-3-oxobutanoate, is a chemical compound with the molecular formula C7H9NO3. It is an ester derivative of butanoic acid, featuring a cyanomethyl group (-CNCH2-) attached to the second carbon and a keto group (C=O) on the third carbon. Butanoic acid, 2-(cyanomethyl)-3-oxo-, ethyl ester is characterized by its potential reactivity due to the presence of the cyano and keto functional groups, which can participate in various chemical reactions, such as nucleophilic addition and condensation reactions. Ethyl 2-(cyanomethyl)-3-oxobutanoate is primarily used as an intermediate in the synthesis of pharmaceuticals and other organic compounds, owing to its unique structural features that can be further modified to achieve desired chemical properties.
The CAS Registry Mumber 921-84-6 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 9,2 and 1 respectively; the second part has 2 digits, 8 and 4 respectively. Calculate Digit Verification of CAS Registry Number 921-84: (5*9)+(4*2)+(3*1)+(2*8)+(1*4)=76 76 % 10 = 6 So 921-84-6 is a valid CAS Registry Number.