2-(1-Pyrrolidinyl)cyclohexyl 3-pentyloxycarbanilic acid ester 76875-69-9 Carbamic acid, (3-(pentyloxy)phenyl)-, (1R,2R)-2-(1-pyrrolidinyl)cyclohexyl ester, rel- Carbamic acid, (3-(pentyloxy)phenyl)-, 2-(1-pyrrolidinyl)cyclohexyl ester, trans- K 1902 Pentacaine Trapencaine