MCC1000 Acid_anhydrides < 0 or > 0 MCC1003 Acid_anhydrides < 0 or > 0 MCC1009 Acid_anhydrides < 0 or > 0 MCC1221 Acid_anhydrides < 0 or > 0 MCC1281 Propenals < 0 or > 2 MCC1319 Chloramidines < 0 or > 0 MCC1335 Heptanes < 0 or > 0 MCC1610 Alkyl_halides < 0 or > 1 MCC1925 Phosphenes < 0 or > 0 MCC1948 Acid_anhydrides < 0 or > 0 MCC2238 Acid_halides < 0 or > 1 MCC2463 Acid_anhydrides < 0 or > 0 MCC2497 Chloramidines < 0 or > 0 MCC2506 Chloramidines < 0 or > 0 MCC2515 Chloramidines < 0 or > 0 MCC2945 Alkyl_halides < 0 or > 1 MCC2950 Propenals < 0 or > 2 MCC2961 Acid_anhydrides < 0 or > 0 MCC3015 Alkyl_halides < 0 or > 1 MCC3027 Alkyl_halides < 0 or > 1 MCC3065 Phosphenes < 0 or > 0 MCC3066 Phosphenes < 0 or > 0 MCC3074 Phosphenes < 0 or > 0 MCC3445 Acyl_cyanides < 0 or > 0 MCC3470 chiral_centers < 0 or > 11 MCC3437 chiral_centers < 0 or > 13 MCC3358 chiral_centers < 0 or > 13 MCC3436 chiral_centers < 0 or > 15 MCC3477 chiral_centers < 0 or > 14 MCC3618 Cyanohydrines < 0 or > 0 MCC4192 Alkyl_halides < 0 or > 1 MCC5021 MW < 50.0 or > 500.0 MCC6907 MW < 50.0 or > 500.0 MCC6909 MW < 50.0 or > 500.0 MCC6908 MW < 50.0 or > 500.0