Empirical Formula: C₆H₁₀Cl₂N₂
Molecular Weight: 181.063 g/mol
EINECS: 210-418-7 
Flash Point: 124.9 °C
Form: Tablet
Color: White to off-white
Storage tempreture: 2-8 °C
Melting point: 258 °C (dec.)(lit.)
Enthalpy of Vaporization: 49.45 kJ/mol
Boiling Point: 257 °C at 760 mmHg
Vapour Pressure: 0.0149 mmHg at 25 °C
Solubility: H₂O: 1 tablet/10 mL, clear, colorless
Appearance: white to light pink powder
Stable: Stable. Incompatible with strong oxidizing agents.
Structure of o-Phenylenediamine dihydrochloride (CAS NO.615-28-1):
                                       
IUPAC Name: Benzene-1,2-diamine dihydrochloride
Product Categories of o-Phenylenediamine dihydrochloride (CAS NO.615-28-1): Powders;Core Bioreagents;Detection Substrates;Enzyme Substrates;Tablets;Peroxidase SubstratesELISA Substrates

 o-Phenylenediamine dihydrochloride (CAS NO.615-28-1) has been used in the manufacture of dye.

Reported in EPA TSCA Inventory.

Poison by intraperitoneal route. Questionable carcinogen with experimental carcinogenic and tumorigenic data. Mutation data reported. When heated to decomposition it emits very toxic fumes of HCl and NO_x. See also m-PHENYLENEDIAMINE; o-PHENYLENEDIAMINE; p-PHENYLENEDIAMINE; p-PHENYLENEDIAMINE DIHYDROCHLORIDE; m-PHENYLENEDIAMINE HYDROCHLORIDE; p-PHENYLENEDIAMINESULFONIC ACID; 1,3-PHENYLENEDIAMINE-4-SULFONIC ACID and AMINES.
 

Hazard Codes: XnNT
Risk Statements: 22-40-43-51/53-68-50/53-36-25-20/21-36/37/38 
R20/21:Harmful by inhalation and in contact with skin. 
R22:Harmful if swallowed. 
R25 :Toxic if swallowed. 
R36:Irritating to eyes. 
R36/37/38:Irritating to eyes, respiratory system and skin. 
R40:Limited evidence of a carcinogenic effect. 
R43:May cause sensitization by skin contact. 
R50/53:Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. 
R51/53:Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. 
R68:Possible risk of irreversible effects.
Safety Statements: 36/37-61-60-45-28-26 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S28:After contact with skin, wash immediately with plenty of soap-suds. 
S36/37:Wear suitable protective clothing and gloves. 
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) 
S60:This material and its container must be disposed of as hazardous waste. 
S61:Avoid release to the environment. Refer to special instructions / safety data sheets.

 o-Phenylenediamine dihydrochloride ,its cas register number is 615-28-1. It also can be called p-Benzenediamine dihydrochloride ; m-Benzenediamine dihydrochloride ; Phenylenediamine dihydrochloride ;and 1,2-Benzenediamine, hydrochloride (1:2) .