2-Nitro-8-methoxy-9-bromonaphtho(2,1-b)furan 9-Bromo-8-methoxy-2-nitronaphtho(2,1-b)furan 92802-63-6 BRN 5582066 NAPHTHO(2,1-b)FURAN, 9-BROMO-8-METHOXY-2-NITRO- R 7521