4,4’-DDD Back Catalog number: 79017 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 681331 Hexanitrodiphenylamine, 100 µg/ml, Acetonitrile, Price on request 12038.38-100MG Vitamin A oleate,neat,neat,100mg, Price on request 0857.20-50-IO C20 Triaromatic sterane, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 81943-50-2 Price on request