1-Methyl-2-nitro-6,7,8,9-tetrahydronaphtho(2,1-b)furan 6,7,8,9-Tetrahydro-1-methyl-2-nitronaphtho(2,1-b)furan 86295-60-5 BRN 5050282 NAPHTHO(2,1-b)FURAN, 6,7,8,9-TETRAHYDRO-1-METHYL-2-NITRO- R 7370