4-METHYLUMBELLIFERYL BETA-D-N,N',N',N''-TETRAACETYLCHITOTETRAOSIDE

TRANS-4-METHYL-BETA-NITROSTYRENE

4-N-BUTOXYPHENYL ISOCYANATE

4-NITRO-2,1,3-BENZOTHIADIAZOLE

4-Nitro-1,3-phenylenediamine

4-NITROBENZALDEHYDE HYDRAZONE,98