Method 200.8/1638/1640 Internal Standard Back Catalog number: 53145 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 674972 Anilazine, 250mg Price on request 71190 Diethanolamine Price on request 673633 Metazachlor, 10.0 µg/ml, Ethyl acetate, 10ml Price on request