LC Caffeine Standards Kit, 6 x 10ml Back Catalog number: LCS-4045 Availability: In the manufacturer's stock Price on request - + Recommended 70448 Isodrin, 1000µg/ml in MeOH, 1ml Price on request EN-1948ES Extraction Standard Solution, in nonane/6.8% toluene, 1,2ml Price on request 71176 2-Methylaziridine Price on request