Molecular structure of Minoxidil sulphate (CAS NO.83701-22-8) is:

Product Name: Minoxidil sulphate
CAS Registry Number: 83701-22-8
IUPAC Name: (2,6-diamino-4-piperidin-1-ylpyrimidin-1-ium-1-yl) sulfate
Molecular Weight: 289.3115 [g/mol]
Molecular Formula: C₉H₁₅N₅O₄S
XLogP3: 1.8
H-Bond Donor: 2
H-Bond Acceptor: 8
Melting Point: 175-180 °C
Storage temp.: -20°C
Other Registry Number: 113266-63-0 ;80142-45-6 
Product Categories: Various Metabolites and Impurities;Intermediates & Fine Chemicals;Metabolites;Pharmaceuticals

 Minoxidil sulphate (CAS NO.83701-22-8) can be used as a selective ATP-sensitive potassium channel opener. It is the active metabolite of minoxidil and is a potent (IC50=0.14) vascular smooth muscle relaxant.

Hazard Codes: Xn;T+
Risk Statements: 22-36/37/38-26/27/28 
R22:Harmful if swallowed. 
R36/37/38:Irritating to eyes, respiratory system and skin. 
R26/27/28:Very toxic by inhalation, in contact with skin and if swallowed.
Safety Statements: 26-36-45-36/37/39-22 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S36:Wear suitable protective clothing. 
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) 
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection. 
S22:Do not breathe dust.
WGK Germany: 3

 Minoxidil sulphate , its cas register number is 83701-22-8. It also can be called Minoxidil sulfate ester ; 2-Pyrimidinamine, 1,6-dihydro-6-imino-4-(1-piperidinyl)-1-(sulfooxy)- ; 6-(1-Piperidinyl)-2,4-pyrimidinediamine-3-oxide sulfate .It is a white crystalline solid.