Source:http://linkedlifedata.com/resource/umls/id/C0022171
MSH: The pH in solutions of proteins and related compounds at which the dipolar ions are at a maximum.,CSP: condition in which a substance has a neutral charge; pH level above which the substance would act as a base and below which it would act as an acid.,NCI: The pH at which a molecule in solution has no net charge and does not migrate in an electric field.