1,4-Naphthoquinone Back Catalog number: X9138 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 9293.7-100-ME N-Propionyl mesalazine-d5, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. Price on request 19066 CLP - Purgeable Organic Matrix Spiking Solution Price on request 1860.14-K-IO 1,1,3,3,5-Pentamethylindan, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 81-03-8 Price on request