Multi-Element Internal Standard / Back Catalog number: 53319 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended C17943500 Xylazine hydrochloride, 100mg Price on request 2900.27-600-HX Cholest-5-en-3ß-ol , 600µg/mL, Solvent-n-hexane, Unit 1mL, # of units-1, Cas.no. 57-88-5 Price on request 71488 2-Chloro-5-methylphenol Price on request