IUPAC Name: 3,5-difluoropyridine
CAS: 71902-33-5
Molecular Formula: C₅H₃F₂N
Molecular Weight: 115.08
Molecular structure:
H bond acceptors: 1 
H bond donors: 0 
Freely Rotating Bonds: 0 
Index of Refraction: 1.446 
Molar Refractivity: 24.33 cm³ 
Molar Volume: 91 cm³ 
Surface Tension: 31.4 dyne/cm 
Density: 1.263 g/cm³ 
Flash Point: 1.9 °C 
Enthalpy of Vaporization: 30.7 kJ/mol 
Boiling Point: 79.4 °C at 760 mmHg 
Vapour Pressure: 98.5 mmHg at 25°C 

 3,5-Difluoropyridine (CAS NO.71902-33-5) is commonly used as chemical reagent.

Hazard Codes:  Xi,F,N,Xn
Risk Statements:  36/37/38-50-20/21/22-11 (36/37/38:  Irritating to eyes, respiratory system and skin 50:  Very Toxic to aquatic organisms 20/21/22:  Harmful by inhalation, in contact with skin and if swallowed 11:  Highly Flammable)
Safety Statements:  26-36/37/39-61-36/37 (26:  In case of contact with eyes, rinse immediately with plenty of water and seek medical advice 36/37/39:  Wear suitable protective clothing, gloves and eye/face protection 61:  Avoid release to the environment. Refer to special instructions safety data sheet 36/37:  Wear suitable protective clothing and gloves)
RIDADR:  1993
Hazard Note:  Highly Flammable/Irritant
HazardClass:  3
PackingGroup:  II

 3,5-Difluoropyridine (CAS NO.71902-33-5) is also named as 3,5-Difluoropyridine 98% ; ZINC02529895 ; CID642820 ; D2972G1 ; D214 ; TL8005034 ,and so on.