ASTM D-4815 Internal Standard Back Catalog number: 51072 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended Q509502 Quercetin-d3 (Major), 2,5mg Price on request 9129.6-K-IO Monophenyltin-d5 trichloride, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. Unlabelled 1124-19-2 Price on request 9192.10-100-ME (+/-)-Cotinine-d3 (N-methyl-d3), 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 110952-70-0 Price on request