| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| tcpp porphyrin | 1.03 | 0.8 | 5123 | 53 | 14 |
| tcpp | 1.59 | 0.9 | 1226 | 90 | 4 |
| porphyrin | 0.86 | 0.1 | 7445 | 7 | 9 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| tcpp porphyrin | 1.5 | 0.1 | 3151 | 80 |
| tetrakis 4-carboxyphenyl porphyrin tcpp | 1.59 | 0.9 | 9350 | 30 |
| tetrakis 4-carboxyphenyl - porphyrin | 1.11 | 1 | 433 | 12 |
| tetra 4-carboxyphenyl porphyrin tcpp | 0.99 | 1 | 7271 | 46 |
| tetrakis 4-carboxyphenyl porphyrin h2tcpp | 0.65 | 0.2 | 3559 | 97 |
| tetrakis 4-carboxyphenyl zinc porphyrin | 1.9 | 0.1 | 2351 | 9 |
| 5 10 15 20-tetrakis 4-carboxyphenyl porphyrin | 0.24 | 0.4 | 8432 | 13 |
| tetrakis 4-carboxyphenyl porphine | 1.32 | 0.7 | 4933 | 8 |
| tetra- 4-carboxyphenyl porphyrin | 0.36 | 0.1 | 8621 | 75 |
| tetrakis 4-hydroxyphenyl porphyrin | 1.06 | 0.9 | 4637 | 7 |
| meso-tetra 4-carboxyphenyl porphyrin tcpp | 0.61 | 0.3 | 1155 | 17 |
| meso-tetrakis 4-carboxyphenyl porphyrin | 0.51 | 1 | 5948 | 16 |
| 1 3 6 8-tetrakis 4-carboxyphenyl pyrene | 1.27 | 0.5 | 2560 | 17 |
