(1)-2-Methylbutyric acid 116-53-0 2-METHYLBUTYRIC ACID 2-Methybutyric acid 2-Methylbutanoic acid 2-Methylbutyrate 2-Methylbutyric acid (VAN) 2-Methylbutyric acid (natrual) 4-02-00-00889 (Beilstein Handbook Reference) 600-07-7 AI3-24202 Active valeric acid BRN 1098537 Butanoic acid, 2-methyl- Butyric acid, 2-methyl- Butyric acid, 2-methyl- (6CI,8CI) EINECS 204-145-2 EINECS 209-982-7 Ethylmethylacetic acid FEMA No. 2695 Methylethylacetic acid NSC 7304 Valeric acid, active alpha-Methylbutyric acid