Internal Standard Back Catalog number: 95592 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1540.12-K-TX10 4-Aminobiphenyl-d9, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-10, Cas.no. 344298-96-0 Price on request 54166 UV 254 Absorbance / DOC Price on request 37031 EPA Method 525.2 - IS/SS Mix Price on request