2,3-NAPHTHALENEDICARBOXYLIC ANHYDRIDE

2,3-O-Isopropylidene-D-ribofuranoside

2,3-O-ISOPROPYLIDENE-D-ERYTHRONOLACTONE

2,3-Pyrazinedicarboxylic acid

2,4,4,6-TETRABROMO-2,5-CYCLOHEXADIENONE

3-Hydroxy-2,4,5-trifluorobenzoic acid

2,4,5-Trifluoro-3-methoxybenzoic acid

2,4,5-Trifluorobenzonitrile

trans-2,4,5-Trimethoxycinnamic acid

5-Nitroso-2,4,6-triaminopyrimidine