Method 200.8/1638/1640 Internal Standard Back Catalog number: 53145 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 673908 Hexaflumuron, 10 µg/ml, Ethyl acetate, 10ml Price on request 1381.2-1ML Methyl formate, neat, Solvent-neat, Unit 1mL, # of units-1, Cas.no. 107-31-3 Price on request 92299 Chlorinated Hydrocarbons Price on request