IUPAC Name:  (4-nitrophenyl) 2,2,2-trifluoroacetate
Molecular Formula: C₈H₄F₃NO₄
Molecular Weight: 235.12 g/mol
Canonical SMILES: O=C(Oc1ccc([N+]([O-])=O)cc1)C(F)(F)F
InChI: InChI=1/C8H4F3NO4/c9-8(10,11)7(13)16-6-3-1-5(2-4-6)12(14)15/h1-4H 
Mol File: 658-78-6.mol
EINECS: 211-524-6
Product Categories: Condensation & Active Esterification; Synthetic Organic Chemistry; Active Esters/Additives; Active Esters/AdditivesSynthetic Reagents; Coupling; Peptide Synthesis
H bond acceptors: 5 
H bond donors: 0 
Freely Rotating Bonds: 3 
Polar Surface Area: 72.12
Index of Refraction: 1.486 
Molar Refractivity: 44.59 cm³ 
Molar Volume: 155.2 cm³ 
Polarizability: 17.67×10^-24cm³ 
Surface Tension: 38.9 dyne/cm 
Density: 1.514 g/cm³ 
Flash Point: 97.2 °C 
Enthalpy of Vaporization: 48.31 kJ/mol 
Boiling Point: 246 °C at 760 mmHg 
Melting Point: 35-39 °C(lit.)
storage temperature: 2-8 °C
Vapour Pressure of 4-Nitrophenyl trifluoroacetate (CAS NO.658-78-6): 0.0278 mmHg at 25 °C

Hazard Codes: Xi
Risk Statements: 36/37/38-22
R36/37/38: Irritating to eyes, respiratory system and skin. 
R22: Harmful if swallowed.
Safety Statements: 26 -36/37/39
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S36/37/39: Wear suitable protective clothing, gloves and eye/face protection.
RIDADR: 2811
WGK Germany: 3
Hazard Note: Harmful/Irritant/Keep Cold
HazardClass: 8
PackingGroup of 4-Nitrophenyl trifluoroacetate (CAS NO.658-78-6): III

  4-Nitrophenyl trifluoroacetate (CAS NO.658-78-6), its Synonyms are Acetic acid, 2,2,2-trifluoro-, 4-nitrophenyl ester ; Acetic acid, trifluoro-, 4-nitrophenyl ester ; Trifluoroacetic acid p-nitrophenyl ester ; p-Nitrophenyl trifluoroacetate ; Acetic acid, trifluoro-, p-nitrophenyl ester . 4-Nitrophenyl trifluoroacetate (CAS NO.658-78-6) is used as Organic fluorine intermediates.