15960-90-4 2-(Diethylamino)-4-pentyno-2',6'-xylidide hydrochloride 2-Diethylaminopent-4-ynoyl-2,6-xylidide hydrochloride 4-Pentynamide, 2-(diethylamino)-N-(2,6-dimethylphenyl)-, monohydrochloride (9CI) 4-Pentyno-2',6'-xylidide, 2-(diethylamino)-, monohydrochloride WY 21745