2BA 619-64-7 4-ethyl benzoic acid white solid 3BA 2438-5-3 4-propyl benzoic acid white solid 4BA 20651-71-2 4-butyl benzoic acid white solid 5BA 26311-45-5 4-pentyl benzoic acid white solid 6BA 21643-38-9 4-hexyl benzoic acid white solid PCA 4-alkylcyclohexyl benzoic acid Abbr. CAS NO. Name Appearance 2PCA 87592-41-4 4-trans-ethylcyclohexyl benzoic acid white solid 3PCA 65355-29-5 4-trans-propylcyclohexyl benzoic acid white solid 4PCA 83626-35-1 4-trans-butylcyclohexyl benzoic acid white solid 5PCA 65355-30-8 4-trans-pentylcyclohexyl benzoic acid white solid 7PCA 65355-31-9 4-trans-heptylcyclohexyl benzoic acid white solid