structural formula business number 025y molecular formula c10h11no2 molecular weight 177.20 label (3,4-dimethoxyphenyl)acetonitrile, verat ...

structural formula business number 02bs molecular formula c6h3cln2o4 molecular weight 202 label 2,4-dinitrochlorobenzene, 4-chloro-1,3-din ...

structural formula business number 01hm molecular formula ch5n molecular weight 31.06 label aminomethane, monomethylamine, ...

structural formula business number 02br molecular formula c7h4clno4 molecular weight 201.57 label 3-nitro-4-chlorobenzoic acid numbering system physical prope ...