Napthol Yellow Back Catalog number: 72598 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8982.35-100-ME 3-Chloro-1,2-propandiol-dipalmitate-d5, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. Price on request 11478.18-100MG Triphenylphosphine oxide,neat,neat,100mg, Price on request 53027 Alternate Interferents B Price on request