Table 1 Information of 5 mainly BDs identified in DESI-MSI
Name | Proposed formula | Molecular ions | Measured mass | Calculated mass (sagittal section A) | Calculated mass (sagittal section B) | Calculated mass (horizontal section A) |
|---|---|---|---|---|---|---|
Desacetylcinobufagin | C24H33O5 | [M + H]+ | 401.223 8 | 401.232 3 | 401.225 4 | 401.223 1 |
Resibufogenin | C24H33O4 | [M + Na]+ | 407.201 0 | 407.219 2 | 407.206 0 | 407.206 5 |
Bufalin | C24H35O4 | [M + K]+ | 425.212 5 | 425.208 8 | 425.215 1 | 425.217 2 |
Arenobufagin | C24H33O6 | [M + Na]+ | 439.201 3 | 439.188 1 | 439.203 6 | 439.208 5 |
Cinobufagin | C26H35O6 | [M + H]+ | 443.244 4 | 443.242 8 | 443.246 5 | 443.245 9 |