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 9219.15-10MG 7-(2-Aminoethylamino)-1-cyclopropyl-6-fluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (Ethylenediamide Compound), neat, Solvent-neat, Unit 10mg, # of units-, Cas.no. 103222-12-4 Price on request 70261 Pyridine-d5 Price on request S-4516-2-50PEX5 ISO 9377-2MOD Extraction solvent standard solution Dilute of "extraction solvent stock solution" (S-4415) 10 times with the extracting solvent (n-pentane) Use 50mL of extraction solvent standard solution pr. experiment Price on request