Amine compounds and their use as zero or low VOC neutralizers

A compound of formula I:

• or a salt or zwitterion thereof,
• wherein R and R1 are each H;
• R4 is H or linear or branched C1-C3 alkyl;
• R2 and R3 are independently linear or branched C1-C6 alkyl, or R2, R3, together with the carbon to which they are attached, form C3-C8 cycloalkyl;
• and
• R5 is H or linear or branched C1-C6 alkyl optionally substituted with:
• OH, C(═O)OH, C(═O)NH2, SH, CH3S, HOOCCH(NH2)CH2S—S—CH2—, phenyl, hydroxyphenyl, imidazolyl, or indoyl;
• or
• R4 and R5, together with the atoms to which they are attached, form a pyrrolidine ring optionally substituted with OH.