Tetrapentyltin Internal Standard Back Catalog number: 82489 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended MDDF-MDT Mass-Labelled PCDD/PCDF Solution/Mixture, 1.2ml, nonane Price on request 674970 Isodrin, 100mg Price on request 672899 Chlorfenapyr, 100mg Price on request