Table 1 Physical–chemical properties of selected alkaloids quantified in this study

CAS number

550-43-6

485-35-8

87-52-5

15358-48-2

550-90-3

486-70-4

519-02-8

90-39-1

Nominal mass [Da]

234.3

190.2

174.2

264.4

248.4

169.3

248.4

234.4

Molecular formula

C₁₄H₂₂N₂O₁

C₁₁H₁₄N₂O

C₁₁H₁₄N₂

C₁₅H₂₄N₂O₂

C₁₅H₂₄N₂O

C₁₀H₁₉N₁O₁

C₁₅H₂₄N₂O

C₁₅H₂₆N₂

Water solubility [g/L]^a

9.9

15.1

3.2

21.8

8.1

13.6

0.8

3.0

log Kow^a

2.2

0.6

1.5

0.2

1.7

1.6

1.7

2.7

pK^b_a

10.3

10.9

7.9

8.8

9.4

9.4

9.4

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