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Leflunomide

Leflunomide / CAS : 75706-12-6

Appearance Grayish white crystalline solid UN 2811
HS 29349990 DG Class 6.1
Synonyms N-(4-Trifluoromethyl-Phenyl)-5-Methylisoxazole-4-Carboxamide; Leflunomidum; Arava; 5-Methyl-N-[4-(Trifluoromethyl)Phenyl]-1,2-Oxazole-4-Carboxamide; Leflunomid; Leflunomida; 5-Methylisoxazole-4-(4-Trifluoromethylcarboxanilide)
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Properties

Summary

Formula
C12H9F3N2O2
Molecular Mass
270.20700
Exact Mass
270.06200
PSA
55.13000
Logp
3.32710
IUPAC
5-methyl-N-[4-(trifluoromethyl)phenyl]-1,2-oxazole-4-carboxamide
SMILES
CC1=C(C=NO1)C(=O)NC2=CC=C(C=C2)C(F)(F)F

Attribute classification

Matter Classification
organic
Category
API & Intermediate > Antipyretic Analgesics

Chemical and Physical Properties

Melting Point
163-168°C
Density
1.392 g/cm3
Boiling Point
289.3ºC
Flash Point
128.8ºC
Appearance
Grayish white crystalline solid
Acidity and Basicity
neutral

Export information

HS Code
29349990
Export Rebate
10%
UN No.
2811
DG-Class
6.1
Risk Code
R22; R36/37/38
Safety Label
Xn,Xi

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