Internal Standard Back Catalog number: 92467 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 10113 EPA Method 617/8080/8250/8270 - Analytes Price on request 72173 L-Glutamic acid Price on request 9460.14-10MG Mepanipyrim, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 110235-47-7 Price on request