| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | = 6–8; R = e.g., H, CH2OH; , = e.g., H, alkyl | | = 2–8; R = R′, CONH(OH); = H, R′′ or SO3M; R′, R′′ = lower hydrocarbon; = H or monovalent metal | | | = H, halogen, acetyl, amino, phosphate, nitro, sulfate, carboxyl, carboxylic, thiocarboxylic, carbamate, thiocarbamate radical, alkyl C1–C60, alkenyl C2–C60, alkynyl C2–C60, cycloalkyl C13-C12, cycloalkyl with at least one ethylenic or acetylenic unsaturation, aryl, naphthyl, aryl(C1–C30 Alkyl), (C1–C30 Alkyl)Aryl, and R1 = R2 = R3 or R1 = R2≠ R3 or R1≠ R2 = R3 or R1≠ R3 = R2 or R1≠ R3≠ R2. |
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