L-Cystine Back Catalog number: 72923 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0295.19-200-T 4-Methylchrysene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 3351-30-2 Price on request 9713.5-90ML n-Butyl chloroformate, neat, Solvent-neat, Unit 90ml, # of units-1, Cas.no. 592-34-7 Price on request 70910 n-Propylamine Price on request