low MW amino acids

high MW amino acids

high MW amino acids

Notes:

N-aliphatic substituent:
	5% HCl - soluble
	5% NaOH - soluble
	5% NaHCO3 - insoluble

N-aryl substituent
	5% HCl - soluble
	5% NaOH - soluble
	5% NaHCO3 - soluble

N-diaryl substituent
	5% HCl - insoluble
	5% NaOH - soluble
	5% NaHCO3 - soluble