| 291811 | 291811 - Acids; carboxylic acids, (with alcohol function but without o |
| 291812 | 291812 - Acids; carboxylic acids, (with alcohol function but without o |
| 291813 | 291813 - Acids; carboxylic acids, (with alcohol function but without o |
| 291814 | 291814 - Acids; carboxylic acids, (with alcohol function but without o |
| 291815 | 291815 - Acids; carboxylic acids, (with alcohol function but without o |
| 291816 | 291816 - Acids; carboxylic acids, (with alcohol function but without o |
| 291817 | 291817 - Acids; carboxylic acids, (with alcohol function but without o |
| 291818 | 291818 - Acids; carboxylic acids, (with alcohol function but without o |
| 291819 | 291819 - Acids; carboxylic acids, (with alcohol function but without o |
| 291821 | 291821 - Acids; carboxylic acids, (with phenol function but without ot |
| 291822 | 291822 - Acids; carboxylic acids, (with phenol function but without ot |
| 291823 | 291823 - Acids; carboxylic acids, (with phenol function but without ot |
| 291829 | 291829 - Acids; carboxylic acids, (with phenol function but without ot |
| 291830 | 291830 - Acids; carboxylic acids, (with aldehyde or ketone function bu |
| 291890 | Other |
| 291891 | 291891 - Acids; carboxylic acids, with additional oxygen function (not |
| 291899 | 291899 - Acids; carboxylic acids, with additional oxygen function (not |