4-Methylvaleric acid, 250mg Back Catalog number: 680164 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended S-4006-500-4.5DC Internal Standard for GC-analysis of PAH compounds 4 Analytes, each 500 µg/mL in dichloromethane; units:1x5mL 0393.12 1-Phenylhexane [1077-16-3] 0728.12 2,3-Dimethylnaphthalene [581-40-8] 0768.16 3,6-D Price on request 90950 n-Hexatriacontane Price on request 682019 5-Chlorovanillin, 100mg Price on request