Table 2.
Larvicidal activities (LC50) and 95% confidence intervals (CI) of thymol and its derivatives on third-instar larvae of Ae. Aegypti
| Compound name | LC50 ppm (IC) Field collected | LC50 ppm (IC) Rockefeller |
|---|---|---|
| Thymol, 1b | 58 (54 to 63) | 46 (41 to 52) |
| Thymyl acetate, 3a | 93 (82 to 103) | 79 (69 to 89) |
| Thymyl chloroacetate, 3b | 49 (46 to 53) | 25 (22 to 28) |
| Thymyl trichloroacetate, 3c | 41 (37 to 45) | 45 (41 to 51) |
| Thymyl propionate, 3d | 66 (61–73) | 45 (39 to 51) |
| Thymyl benzoate, 3e | 90 (82 to 99) | 18 (14 to 25) |
| Thymyl methyl ether, 3f | 192 (169 to 214) | 39 (33 to 48) |
| Thymyl ethyl ether, 3g | 123 (29 to 269) | 58 (50 to 65) |
| 2-hydroxy-6-methyl-3-(1-methylethyl)-benzaldehyde, 3h | 34 (32 to 37) | 36 (32 to 41) |
| Thymoxyacetic acid, 3i | 465 (426–513) | 101 (95 to 107) |