Color Back Catalog number: 50818 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8807.24-10MG Naphtho[1,2-k]fluoranthene, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 238-04-0 Price on request 50831 ICP Mix Price on request 674760 Thiamphenicol, 100mg Price on request