4.4'-DDE (13C12), 100µg/ml in n-Nonane, 1,2ml Back Catalog number: S-FC93S-1.2ML Availability: In the manufacturer's stock Price on request - + Recommended 680164 4-Methylvaleric acid, 250mg Price on request S-4088-200-10ME Methanol QC Reference Mixture II 11 Analytes, each 200 ppm in 99.9 % methanol; units: 1x10mL, 5x10mL Chiron No. Name Chiron No. Name 1381.2Methyl formate 1370.5 3-Pentanone 1377.4 2-Butanol Price on request 1999.12-10MG 2,4,4'-Trichlorobiphenyl, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 7012-37-5 Price on request