Napthol Yellow Back Catalog number: 72598 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 9057.7-K-IP 4,5-Dichloroguaiacol , 1000µg/mL, Solvent-isopropanol, Unit 1mL, # of units-1, Cas.no. 2460-49-3 Price on request 10634.12-50-NN 1,2,3,6,7,8-Hexachlorodibenzofuran,50 µg/mL,n-nonane,1mL, Price on request C173135 (-)-Camphene, 100mg Price on request