19946-21-5 2-(Diphenylmethyl)-3-piperidinol succinate (1:1) 20068-86-4 21441-62-3 3-Piperidinol, 2-(diphenylmethyl)-, (-)-, succinate (1:1) (salt), (+)- 3-Piperidinol, 2-(diphenylmethyl)-, succinate (1:1) (salt)