Formaldehyde-DNPH Level 3 (1.0ug/mL) Back Catalog number: 98860 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 73486 Quinine Price on request 2303.9-1G Azelaic acid, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 123-99-9 Price on request S-4269A-10ML 3 Fluorinated Internal Standard Mix 3 Analytes, each Wt.% as listed; units: 1x10mL, 5x10mL neat Name Wt.% Name Wt.% Fluorobenzene 39.7 1-Fluoronaphthalene 20.9 4-Ethyl- Price on request