2-Nitro-6,7,8,9-tetrahydronaphtho(1,2-b)furan 6,7,8,9-Tetrahydro-2-nitronaphtho(1,2-b)furan 86311-67-3 BRN 5040167 NAPHTHO(1,2-b)FURAN, 6,7,8,9-TETRAHYDRO-2-NITRO- R 7334