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??????? ??
- ?? ?? (pKa)
- pK1:2.13(+2);pK2:8.62(+1);pK3:9.67(0) (38°C,μ=0.1)
- ??????(pH)
- 8.64
- optical activity
- +9.225 (H2O) +17.825 (5 mol dm-3 HCl)