Ammonia as (NH4+) Back Catalog number: 54212 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 79483 Methyl 9-cis-hexadecenoate (C16:1n-7) Price on request 71332 2-Methylhexane Price on request 0667.27-50-IO C27 1-Methyl triaromatic sterane, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 80382-27-0 Price on request