2-Oxazolidinone, 3-(p-ethoxycarbonylphenyl)-5-(2-propynyloxymethyl)- 23598-65-4 BENZOIC ACID, 4-(2-OXO-5-(2-PROPYNYLOXYMETHYL)-3-OXAZOLIDINYL)-, ETHYL ESTER BRN 0572075