EPA Method 507 Analyte Mix #1 Back Catalog number: 30182 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 9285.10-100-ME Stavudine, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 3056-17-5 Price on request 673122 Cholecalciferol, 100mg Price on request 3168.19-K-IO Methyl 12-hydroxystearate, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 141-23-1 Price on request