Napthol Yellow Back Catalog number: 72598 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 71271 1,7-Dimethylnaphthalene Price on request 54595 Phosphorus ASTM D-3231 Price on request 9025.16-100-IO Benzyl-d5 cinnamate (E-isomer), 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 347840-02-2 Price on request