1,4-Phenylenediamine Back Catalog number: X9181 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 83547 Formaldehyde-DNPH Price on request 8212.11-K-AN Isobutyraldehyde-PFBOA derivative, 1000µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. Price on request 2115.23-100MG 6-n-Dodecylnaphthalene-2-carboxylic acid, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 871325-01-8 Price on request