5-Methyl-2-phenyl-4-(phenylhydrazinylidene)pyrazol

2,2',4,4',5,5'-Hexachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane

Sulfur Standard 1 Unit: 10mL screw cap bottle Chiron No. Matrix: Methanol Compound Concentration S-4072 Diethyl sulfide 0.5 ppm (w/w) Di-n-butyl sulfide 0.5 ppm (w/w)

3,3',4,4',5-Pentabromo[13C12]diphenyl ether, 1.2ml x 50ug/ml, nonane