Direct Black 38 Back Catalog number: 10545.34-1G Manufacturer: CHIRON AS Availability: 3 weeks Price on request - + Recommended 0607.28-100-IO alpha alpha alpha (20R 24R)-24-Methylcholestane and alpha alpha alpha (24R 24R)-24-Ethylcholestane, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 50897-35-3/62446-14-4 Price on request 33PDM155 2,2',4,4',6,6'-Hexachloro-3,3'-dimethoxybiphenyl, 1.2ml x 50ug/ml, nonane Price on request 31005 EPA Method 502/524 Fortification Solution Price on request