2-Pyridylmethyl alpha-phenylbutyrate hydrochloride 42023-67-6 BUTYRIC ACID, alpha-PHENYL-, 2-PYRIDYLMETHYL ESTER, HYDROCHLORIDE Benzeneacetic acid, alpha-ethyl-, 2-pyridylmethyl ester hydrochloride F 1172 Methanol, 2-pyridyl-, alpha-phenylbutyrate, hydrochloride