| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| amine and carboxyl group | 1.5 | 0.8 | 1721 | 9 | 24 |
| amine | 1.15 | 0.1 | 6028 | 39 | 5 |
| and | 0.97 | 0.9 | 5460 | 39 | 3 |
| carboxyl | 0.13 | 0.6 | 5754 | 84 | 8 |
| group | 1.72 | 0.9 | 1011 | 83 | 5 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| amine and carboxyl group | 1.19 | 0.9 | 3215 | 24 |
