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Isobutyric acid, also known as 2-methylpropanoic acid or isobutanoic acid, is a carboxylic acid with structural formula (CH 3) 2 CHCOOH. It is an isomer of butyric acid. It is classified as a short-chain fatty acid. Deprotonation or esterification gives derivatives called isobutyrates. Isobutyric acid is a colorless liquid with a somewhat ...
Butyric acid (/ ˈ b j uː t ɪ r ɪ k /; from Ancient Greek: βούτῡρον, meaning "butter"), also known under the systematic name butanoic acid, is a straight-chain alkyl carboxylic acid with the chemical formula CH 3 CH 2 CH 2 COOH. It is an oily, colorless liquid with an unpleasant odor. Isobutyric acid (2-methylpropanoic acid) is an ...
Acetic acid: Ethanoic acid Acetate: Ethanoate C 2 H 4 O 2: CH 3 COOH: 60.05 C3:0 Propionic acid: Propanoic acid Propionate: Propanoate C 3 H 6 O 2: CH 3 CH 2 COOH: 74.08 C4:0 Butyric acid: Butanoic acid Butyrate: Butanoate C 4 H 8 O 2: CH 3 (CH 2) 2 COOH: 88.11 C4:0 Isobutyric acid: 2-Methylpropanoic acid Isobutyrate: 2-Methylpropanoate C 4 H 8 ...
Isobutyric anhydride is an organic compound with the formula ((CH 3) 2 CHCO) 2 O. It is an acyclic carboxylic anhydride of isobutyric acid. [2] It is classified as an organic acid anhydride, being derived from dehydration of isobutyric acid. It is a colorless liquid with a strong, pungent odor. [3] [4]
2-Hydroxyisobutyric acid is the organic compound with the formula (CH 3) 2 C(OH)CO 2 H. A white solid, it is classified as an hydroxycarboxylic acid. It has been considered as a naturally occurring precursor to polyesters. [3] It is closely related to lactic acid (CH 3 CH(OH)CO 2 H). [4]
2-Aminoisobutyric acid (also known as α-aminoisobutyric acid, AIB, α-methylalanine, or 2-methylalanine) is the non-proteinogenic amino acid with the structural formula H 2 N-C(CH 3) 2-COOH. It is rare in nature, having been only found in meteorites, [ 2 ] and some antibiotics of fungal origin, such as alamethicin and some lantibiotics .
Its structure was initially unclear, with some chemists believing it corresponds to butyric acid, but theoretical considerations indicated that normal butanol should have a higher boiling point, and in 1867 Emil Erlenmeyer and independently Vladimir Markovnikov determined its actual structure by proving its oxidation product to be isobutyric acid.
3-Aminoisobutyric acid (also known as β-aminoisobutyric acid or BAIBA) is a product formed by the catabolism of thymine. During exercise, the increase of PGC-1α protein triggers the secretion of BAIBA from exercising muscles to blood (concentration 2 to 3 μM in human serum).