Napthol Yellow Back Catalog number: 72598 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 13768.9-100-ME Lamotrigine-13C3,d3, 100µg/ml in MeOH, 1ml Price on request 42002 EPA Method 601 Analytes Price on request 11433.20-100-IO Di-m-tolylphenyl phosphate,100 µg/mL,isooctane,1mL, Price on request