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Formulas which begin with C₂₁H₁₉N

All formulas are in Hill order.

• C₂₁H₁₉NO______ (3 species)
• C₂₁H₁₉NS (2-n-butyl-5-(4'-cyanobiphenyl-4-yl)thiophene)
• C₂₁H₁₉N₂NaO₄S (2-Biphenylylpenicillin, sodium salt)
• C₂₁H₁₉N₃O₂ (P-phenylazo carbanilic acid, phenethyl ester)
• C₂₁H₁₉N₅O₄ (1,3-Bis(4-methoxyphenyl)-5-(4-nitrophenyl)formazan)