This is plant extracts.

1. N-[4-Cyano-3- (Trifluoromethyl) phenyl]-3-[ (4-Fluorophenyl) thio]-2-Hydroxy-2-Methyl Propionamide [90356-78-8]2. N-[4-Cyano-3- (trifluoromethyl) phenyl]methacrylamide epoxide[90357-51-0]

Appearance: White or off-white powderSulphated Ash: No more than 0. 1%Heavy Metals:Assay by HPLC:No less than 98. 5%Use: An iron chelating agent

Entecavir intermediates:3, 5-dibenzyl-Entecavir3-5-6-Oxygen-tribenzyl Entecavir

1. 4-[1- (1, 2, 4-triazolyl) -methyl]-benzonitrile2. 4, 4-Dicyanobenzophenone (intermediate of letrozole)3. 4-[a- (4-cyanophenyl) -hydroxymethyl]-benzonitrile4. 4-[a- (4-cyanophenyl) -chloromethyl]-be

CAS Number: [34157-83-0]C29H38O4; mol wt. 450. 62.Occurrence: members of Celastraceae, e. G. , Celastrus and Tripterygium species.Appearance: Red cubic crystals;Solubility: insoluble in water; soluble

Description Pale brownish to off-white crystalline powder ConformsHeavy metal Not more than 20ppm ConformsLoss on drying Not more than 0. 5% 0. 27%Residue on ignition Not more than 0. 5% 0. 23%Melt po

Appearance: White or off-white crystalline powderIdentification: (by NMR) The Nuclear Magnetic Resonance spectrum of the sample should be the same as that of reference materialLoss on drying: No more

Appearance: Off-white solid.Loss on drying: No more than 0. 5%Purity (HPLC) : Not less than 99. 0%