8260 Internal & Surrogate Standard

Triton X-405

BHC (delta isomer-13C6), 100µg/ml in Nonane, 1,2ml

N-(4-chloro[13C6]phenyl)-N'-(3,4-dichloro[13C6]phenyl)[13C]urea , 1.2ml x 50ug/ml, methanol