ESI-LC/MS mass spectral data for metabolites of efavirenz isolated and characterized from different species
| Metabolite | [M-H]− | Fragment Ions |
|---|---|---|
| M1 | 506* (B) | 410, 330, 286, 266, 258, 246, 210 |
| M2 | 490 (B) | 464, 410, 314, 270, 244 |
| M3 | 410 | 330, 286, 258 (B), 249, 246, 230, 210, 182, 162 |
| M4 | 330 (B) | 288, 286, 266, 260, 258, 250, 246, 230, 210, 182, 162 |
| M5 | 330 | 286, 258 (B), 238, 189, 65 |
| M6 | 506 (B) | 330, 286, 258, 175, 137, 113 |
| M7 | 410 | 286, 260, 258 (B), 216, 66 |
| M8 | 346 (B) | 302, 282, 274, 264, 262, 254, 246, 246, 242, 226 |
| M9 | 733 | 653, 587, 380, 346, 310, 276, 264 (B), 246 |
| M10 | 604 | 524, 380, 346, 310, 276, 266, 264 |
| M11 | 426 | 346, 282, 274, 262 (B), 254, 242, 238, 226 |
| M12 | 602 (B) | 522, 445, 426, 408, 346, 264, 250 |
| M13 | 749 (B) | 669, 605, 396, 378, 360, 348 |
| M14 | 522 | 346 (B), 302, 282, 262, 254, 242, 238, 226, 198, 178 |
| M15 | 426 (B) | 408, 302, 282, 254, 242, 227, 191, 173, 155 |
| M16 | 522 | 346, 304, 302, 282 (B), 274, 262, 254, 234, 206, 175 |
| M17 | 547 | 467, 460, 447, 419, 380, 316, 310, 302, 296, 282, 276, 274, 266, 264 (B) |
∗, (B) represents the base peak in the mass spectrum.