PAH Standard Back Catalog number: 94194 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1321.29-50-IO 17 alpha(H),21ß(H)-30-Norhopane, 50µg/mL in Isooctane, 1ml Price on request 57056 Barium (Ba) Price on request 72192 Lanosterol Price on request