Alternate Interferents B Back Catalog number: 52027 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 51099 Olefins - ASTM 1319 Price on request 52039 Interference Standard 1 Price on request 10533.28-1MG 25-Hydroxyvitamin D2-d6 (Dimethyl 26,27-d6) Price on request