The Histamine diphosphate, with the CAS registry number 23297-93-0, has the systematic name of 2-(1H-imidazol-5-yl)ethanamine phosphate (1:2). It is a kind of white crystalline powder, and belongs to the following product categories: Heterocycles; Heterocyclic Compounds; Amino acid salt. And the molecular formula of the chemical is C₅H₉N₃^.2(H₃PO₄).

The characteristics of Histamine diphosphate are as followings: (1)ACD/LogP: -0.92; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): -4.41; (4)ACD/LogD (pH 7.4): -3.65; (5)ACD/BCF (pH 5.5): 1; (6)ACD/BCF (pH 7.4): 1; (7)ACD/KOC (pH 5.5): 1; (8)ACD/KOC (pH 7.4): 1; (9)#H bond acceptors: 3; (10)#H bond donors: 3; (11)#Freely Rotating Bonds: 3; (12)Polar Surface Area: 21.06 Å² ; (13)Flash Point: 180.3 °C; (14)Enthalpy of Vaporization: 57.36 kJ/mol; (15)Boiling Point: 331 °C at 760 mmHg; (16)Vapour Pressure: 0.00016 mmHg at 25°C. 

Addtionally, the following datas could be converted into the molecular structure:
(1)SMILES: O=P(O)(O)O.O=P(O)(O)O.n1cc(nc1)CCN
(2)InChI: O=P(O)(O)O.O=P(O)(O)O.n1cc(nc1)CCN
(3)InChIKey: ZHIBQGJKHVBLJJ-UHFFFAOYAX