Biphosphate
# Biphosphate

A biphosphate is any of the following (due to fluctuations in chemical nomenclature over the centuries):

* One of the two phosphate ions which can be singular to 1 metal ion
   * Monohydrogen phosphate, commonly known as hydrogenphosphate, also known as biphosphate(2-).
   * Dihydrogen phosphate, also known as biphosphate(1-).
* Any salt of phosphoric acid in which only one of the hydrogen atoms has been replaced by a metal ion
   * Calcium biphosphate is monocalcium phosphate
   * Potassium biphosphate is monopotassium phosphate
   * Magnesium biphosphate is monomagnesium phosphate
   * Sodium biphosphate is monosodium phosphate
* Any diphosphate, which may be:
   * Any pyrophosphate
      * Any simple pyrophosphate salt (which have no hydrogen atoms)
         * Calcium pyrophosphate
         * Tetrasodium pyrophosphate
         * Zinc pyrophosphate
      * Any organic pyrophosphate or any organic molecule with two phosphate groups
         * Adenosine diphosphate
            * Deoxyadenosine diphosphate
         * Cytidine diphosphate
            * Deoxycytidine diphosphate
         * Guanosine diphosphate
            * Deoxyguanosine diphosphate
         * Thiamine pyrophosphate
         * Thymidine diphosphate
         * Uridine diphosphate
   * Any salt or ester with two phosphate groups
      * Hexestrol diphosphate
