DP 25	N-methylmorpholin-2-one	115.06333	C₅H₉NO₂	MDEA Oxidative degradation	[14]
DP 26	N-methylmorpholin-2,6-dione	129.04259	C₅H₇NO₃	MDEA Oxidative degradation	[14]
DP 27	2-[Methyl (2-hydroxyethyl) amino] acetic acid	133.07389	C₅H₁₁NO₃	MDEA Oxidative degradation	[15]
DP 28	N, N, N-trimethyl-N-(2-hydroxyethyl) ethylenediamine	146.14191	C₇H₁₈N₂O	MDEA Oxidative degradation	[10]
DP 29	N-(carboxymethyl) diethanolamine (bicine)	163.08446	C₆H₁₃NO₄	MDEA Oxidative degradation	[10]
DP 30	Ethyl enediamine (EDA)	60.06875	C₂H₈N₂	PZ Thermal degradation	[11]
DP 31	Imidazolidin-2-one (2-Imid)	86.04801	C₃H₆N₂O	PZ Thermal degradation	[11]
DP 32	N-methylpiperazine (MPZ)	100.10005	C₅H₁₂N₂	PZ Thermal degradation	[11]
DP 33	N-formylpiperazine (FPZ)	114.07931	C₅H₁₀N₂O	PZ Thermal degradation	[11]
DP 34	N-ethylpiperazine (EPZ)	114.1157	C₆H₁₄N₂	PZ Thermal degradation	[11]
DP 35	N-(2-hydroxyethyl)-N-methyl piperazine (HMP)	129.1266	C₆H₁₅N₃	PZ Thermal degradation	[11]
DP 36	N-(2-hydroxyethyl) piperazine (HEP)	130.11061	C₆H₁₄N₂O	PZ Thermal degradation	[11]
DP 37	Nitrous Acid	47.00073	HNO₂	PZ Oxidative degradation	[11]
DP 38	Nitric acid	62.99564	HNO₃	PZ Oxidative degradation	[11]
DP 39	Ethylenediamine (EDA)	60.06875	C₂H₈N₂	PZ Oxidative degradation	[11]
DP 40	Glycolic Acid	76.01604	C₂H₄O₃	PZ Oxidative degradation	[11]
DP 41	N-Formylpiperazine (FPZ)	114.07931	C₅H₁₀N₂O	PZ Oxidative degradation	[11]