IUPAC Name: Phenylhydrazine; sulfuric acid
Empirical Formula: C₁₂H₁₈N₄O₄S 
Molecular Weight: 314.3607 
Canonical SMILES: C1=CC=C(C=C1)NN.C1=CC=C(C=C1)NN.OS(=O)(=O)O
InChI: InChI=1S/2C6H8N2.H2O4S/c2*7-8-6-4-2-1-3-5-6;1-5(2,3)4/h2*1-5,8H,7H2;(H2,1,2,3,4) 
InChIKey: GSKCKIQJTWVQLR-UHFFFAOYSA-N
H-Bond Donor: 6  
H-Bond Acceptor: 8
EINECS: 257-622-2
Flash Point: 115.4 °C 
Enthalpy of Vaporization: 48 kJ/mol 
Boiling Point: 243 °C at 760 mmHg 
Vapour Pressure of Phenylhydrazine sulfate (CAS NO.52033-74-6): 0.0329 mmHg at 25 °C

Hazard Codes: N,T
Risk Statements: 23/24/25-36/38-43-48-50-68 
R23/24/25:Toxic by inhalation, in contact with skin and if swallowed. 
R36/38:Irritating to eyes and skin. 
R43:May cause sensitization by skin contact. 
R48:Danger of serious damage to health by prolonged exposure. 
R50:Very toxic to aquatic organisms. 
R68:Possible risk of irreversible effects.
Safety Statements of Phenylhydrazine sulfate (CAS NO.52033-74-6): 45-53-61 
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) 
S53:Avoid exposure - obtain special instructions before use. 
S61:Avoid release to the environment. Refer to special instructions / safety data sheets.

 Phenylhydrazine sulfate (CAS NO.52033-74-6), its Synonyms are Phenylhydrazinium sulphate (2:1) ; Phenylhydrszinesulphate ; 1-Hydrazinobenzene sulfate ; Hydrazinobenzene sulfate .