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Table 1 Cathinone, cathine and norephedrine concentrations in the khat-extract stock solution, and in experimental cell cultures

From: Distinct single cell signal transduction signatures in leukocyte subsets stimulated with khat extract, amphetamine-like cathinone, cathine or norephedrine

  Cathinone Cathine Norephedrine
Mw 150.1 Mw 152.1 Mw 152.1
  mg ml-1 M mg ml-1 M mg ml-1 M
khat-extract stock solution 2.5 1.7 × 10-2 3.0 2.0 × 10-2 0.3 2.0 × 10-3
10-3 dilution 2.5 × 10-3 1.7 × 10-5 3 × 10-3 2.0 × 10-5 3 × 10-4 2.0 × 10-6
3.16 × 10-4 dilution 7.9 × 10-4 5.4 × 10-6 9.5 × 10-4 6.3 × 10-6 9.5 × 10-5 6.3 × 10-7
  1. The stock solution concentrations were determined based on HPLC-MS-MS analyses [30].