13C3-Caffeine, 100 µg/ml, Methanol, 1ml Back Catalog number: 681491 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 72766 Decanoic acid Price on request 59489 Common Anions Mix #1 Price on request 0936.6-100MG 2-Ethylthiophene, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 872-55-9 Price on request