Table 1.
Accurate masses of the [M − 143.0887]+ fragment ion of TMS derivatives of ∆4-stera-3β,6β-diols arising from the more common ∆5-sterols.
| ∆5-Sterols | [M − 143.0887]+ |
|---|---|
| 24-Nor-cholesta-5,22-dien-3β,6α/β-diols | 387.3084 |
| 24-Nor-cholest-5-en-3β,6α/β-diols | 389.3240 |
| Cholesta-5,22-dien-3β,6α/β-diols | 401.3240 |
| Cholesta-5,24-dien-3β,6α/β-diols | 401.3240 |
| Cholest-5-en-3β,6α/β-diols | 403.3396 |
| 24-Methylcholest-5-en-3β,6α/β-diols | 417.3562 |
| 24-Methylcholesta-5,22-dien-3β,6α/β-diols | 415.3396 |
| 24-Methylcholesta-5,24/28-dien-3β,6α/β-diols | 415.3396 |
| 24-Ethylcholest-5-en-3β,6α/β-diols | 431.3710 |
| 24-Ethylcholesta-5,22-dien-3β,6α/β-diols | 429.3552 |