Pyrene Back Catalog number: 92540 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 79127 o-Cresol Price on request 72599 Auramine Price on request 11019.30-5UG 17?,18?(H),21ß(H),17-methyl-28-norhopane,neat,neat,ca. 5 µg, Price on request