{HEAD ~ An organic base}; such as methanolamine, ethanolamine, propanolamine, {TAIL ~ dimethanolamine}, diethanolamine, dipropanolamine, trimethanolamine, triethanolamine, or tripropanolamine; may be used in place of ammonium hydroxide 
such as
{ HEAD ~ An organic base } ; such as methanolamine , ethanolamine , propanolamine , { TAIL ~ dimethanolamine } , diethanolamine , dipropanolamine , trimethanolamine , triethanolamine , or tripropanolamine ; may be used in place of ammonium hydroxide
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH