L-Histidine Back Catalog number: 72181 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3913.28-100-HXX5 Campesterol, 100µg/mL, Solvent-hexane, Unit 1mL, # of units-5, Cas.no. 474-62-4 Price on request 51072 ASTM D-4815 Internal Standard Price on request 50468 ICP Mix - 5 µg / mL Price on request