IUPAC Name: Sulfuric acid ; 2,5,6-Triamino-1H-pyrimidin-4-one 
Following is the structure of 2,4,5-Triamino-6-hydroxypyrimidine sulfate (CAS NO.35011-47-3):
                         
Empirical Formula: C₄H₉N₅O₅S
Molecular Weight: 239.2098 g/mol
Flash Point: 121.3 °C
Melting point: >300 °C
Enthalpy of Vaporization: 51.55 kJ/mol
Boiling Point: 277 °C at 760 mmHg
Vapour Pressure: 0.00465 mmHg at 25 °C 
Product Categories of 2,4,5-Triamino-6-hydroxypyrimidine sulfate (CAS NO.35011-47-3): Heterocyclic Compounds
Appearance of 2,4,5-Triamino-6-hydroxypyrimidine sulfate (CAS NO.35011-47-3): yellow-beige crystalline powder
Canonical SMILES: C1(=C(NC(=NC1=O)N)N)N.OS(=O)(=O)O
InChI: InChI=1S/C4H7N5O.H2O4S/c5-1-2(6)8-4(7)9-3(1)10;1-5(2,3)4/h5H2,(H5,6,7,8,9,10);(H2,1,2,3,4)
InChIKey: RSKNEEODWFLVFF-UHFFFAOYSA-N

  2,4,5-Triamino-6-hydroxypyrimidine sulfate (CAS NO.35011-47-3) hasn't been listed as a carcinogen by ACGIH, IARC, NTP, or CA Prop 65.

Hazard Codes: Xi
Risk Statements: 36/37/38 
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 26-36 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S36:Wear suitable protective clothing.
WGK Germany: 3

 2,4,5-Triamino-6-hydroxypyrimidine sulfate , its cas register number is 35011-47-3. It also can be called 2,5,6-Triamino-4-pyrimidol sulfate .
 2,4,5-Triamino-6-hydroxypyrimidine sulfate (CAS NO.35011-47-3) is hazardous, so the first aid measures and others should be known. Such as: When on the skin: Flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes. Or in the eyes: Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. While, it's inhaled: Remove from exposure and move to fresh air immediately. Then you have the ingesting of the product : Do not induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.
 2,4,5-Triamino-6-hydroxypyrimidine sulfate (CAS NO.35011-47-3) could be stable under normal temperatures and pressures. I should avoid the condition like incompatible materials, , strong oxidants. It is not compatible with strong oxidizing agents. And also prevent it to broken down into hazardous decomposition products: irritating and toxic fumes and gases. However, its hazardous polymerization has not been reported. In addition, It should be stored in a cool, dry place. or keep its container closed when not in use.