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