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HPTLC Rf values of A3.1, A3.2, and M1 samples developed in solvent system B (from left to right in Figure 5).
| N o | Spot | R f of A3.1 | R f of A3.2 (39 months) | R f of M1 (50 months) | Color under visible light | Remark |
|---|---|---|---|---|---|---|
| 1 | a | 0.74 | 0.72 | 0.71 | Violet | Color intensity and Rf value: A3.1 > A3.2 > M1 |
| 2 | b | 0.80 | 0.78 | 0.76 | Violet | |
| 3 | c | 0.85 | 0.84 | 0.83 | Violet | |
| 4 | d | 0.95 | 0.94 | 0.93 | Yellow |
