Alpha-ketoisocaproate (KIC) is a keto acid of the amino acid leucine. Branched-chain keto acids are very similar to branched-chain amino acids, the only difference being the presence of a keto group instead of an amino group. KIC is anticatabolic, which means it contributes to muscle growth by helping to move the body from a catabolic (muscle wasting) to anabolic (muscle building) state.

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Name of Substance: alpha-ketoisocaproic acid

CAS Type 1 Name: 4-methyl-2-oxopentanoic acid

Registry Number: 816-66-0

Related Number: 4502-00-5 (Na salt)

Related Number: 51828-95-6 (Ca salt)

Entry Term: 2-keto-4-methylvalerate

Entry Term: 2-ketoisocaproate

Entry Term: 2-oxo-4-methylpentanoic acid

Entry Term: 2-oxo-4-methylvaleric acid

Entry Term: 2-oxoisocaproic acid

Entry Term: 4-methyl-2-oxopentanoate

Entry Term: 4-methyl-2-oxopentanoic acid

Entry Term: 4-methyl-2-oxovalerate

Entry Term: alpha-keto-isocaproic acid

Entry Term: alpha-ketoisocaproate

Entry Term: alpha-ketoisocaproic acid, calcium salt

Entry Term: alpha-ketoisocaproic acid, sodium salt

Entry Term: alpha-oxoisocaproate

PureKIC - Calcium KIC