LC Caffeine Standards Kit, 6 x 10ml Back Catalog number: LCS-4045 Availability: In the manufacturer's stock Price on request - + Recommended 50152 Ammonia as N Price on request 96032 Internal Standard - Surrogate Mix Price on request 1535.18-100-TX10 o-Terphenyl-d14, 100µg/mL, Solvent-toluene, Unit 1mL, # of units-10, Cas.no. 5142-76-6 Price on request