delta-HCH, certified, 50mg

ISO 17495 Internal Standard Stock Solution 2 Internal standards, each 10µg/mL in acetone; unit: 1x5mL 2061.6 2,4-Dibromophenol [615-58-7] 2060.6 2,4,6-Tribromophenol [118-79-6] The following compounds are suggested as alternative I

Betulin diacetate, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 1721-69-3

Dimethenamid OA, 10mg