Prometon Back Catalog number: 9528.10-100-CY Manufacturer: CHIRON AS Availability: 3 weeks Price on request - + Recommended 19494 EPA Method 524 & 624 - Internal Standard Price on request MTCC N-(4-chloro[13C6]phenyl)-N'-(3,4-dichloro[13C6]phenyl)[13C]urea , 1.2ml x 50ug/ml, methanol Price on request 70026 Benzene-d6 Price on request