22819-24-5 4-11-00-00184 (Beilstein Handbook Reference) BRN 2667086 Benzenesulfonamide, N-(ethoxycarbonyl)-m-nitro- CARBAMIC ACID, ((m-NITROPHENYL)SULFONYL)-, ETHYL ESTER Ethyl N-(m-nitrophenylsulfonyl)carbamate