Alkaloids, natural or reproduced by synthesis, and their salts, ethers, esters and other derivatives:
| Subheading | Description | General | Special | Other |
|---|---|---|---|---|
| 2939.11 | Alkaloids, natural or reproduced by synthesis, and their salts, ethers, esters and other derivatives | — | — | — |
| Alkaloids of opium and their derivatives; salts thereof: | ||||
| 2939.19 | Other: | — | — | — |
| 2939.20 | Alkaloids, natural or reproduced by synthesis, and their salts, ethers, esters and other derivatives | — | — | — |
| 2939.30 | Alkaloids, natural or reproduced by synthesis, and their salts, ethers, esters and other derivatives | — | — | — |
| 2939.41 | Alkaloids, natural or reproduced by synthesis, and their salts, ethers, esters and other derivatives | — | — | — |
| 2939.42 | Alkaloids, natural or reproduced by synthesis, and their salts, ethers, esters and other derivatives | — | — | — |
| 2939.43 | Alkaloids, natural or reproduced by synthesis, and their salts, ethers, esters and other derivatives | — | — | — |
| 2939.44 | Alkaloids, natural or reproduced by synthesis, and their salts, ethers, esters and other derivatives | — | — | — |
| 2939.45 | Alkaloids, natural or reproduced by synthesis, and their salts, ethers, esters and other derivatives | — | — | — |
| 2939.49 | Alkaloids, natural or reproduced by synthesis, and their salts, ethers, esters and other derivatives | — | — | — |
| 2939.51 | Alkaloids, natural or reproduced by synthesis, and their salts, ethers, esters and other derivatives | — | — | — |
| 2939.59 | Alkaloids, natural or reproduced by synthesis, and their salts, ethers, esters and other derivatives | — | — | — |
| 2939.61 | Alkaloids, natural or reproduced by synthesis, and their salts, ethers, esters and other derivatives | — | — | — |
| 2939.62 | Alkaloids, natural or reproduced by synthesis, and their salts, ethers, esters and other derivatives | — | — | — |
| 2939.63 | Alkaloids, natural or reproduced by synthesis, and their salts, ethers, esters and other derivatives | — | — | — |
| 2939.69 | Alkaloids, natural or reproduced by synthesis, and their salts, ethers, esters and other derivatives | — | — | — |
| 2939.72 | Alkaloids, natural or reproduced by synthesis, and their salts, ethers, esters and other derivatives | — | — | — |
| 2939.79 | Alkaloids, natural or reproduced by synthesis, and their salts, ethers, esters and other derivatives | — | — | — |
| 2939.80 | Alkaloids, natural or reproduced by synthesis, and their salts, ethers, esters and other derivatives | — | — | — |