| sigma aldrich product search | 1.27 | 0.5 | 462 | 28 | 35 |
| sigma aldrich chemical search | 0.11 | 0.9 | 2320 | 29 | 27 |
| sigma aldrich product catalog | 1.95 | 0.5 | 5658 | 29 | 63 |
| sigma aldrich product number | 1.88 | 0.4 | 2963 | 28 | 75 |
| sigma aldrich product catalogue pdf | 1.2 | 0.3 | 6627 | 35 | 96 |
| sigma aldrich catalog online | 1.93 | 0.7 | 8432 | 28 | 84 |
| sigma aldrich home page | 0.08 | 0.7 | 5184 | 23 | 12 |
| sigma aldrich chemical website | 0.05 | 0.4 | 2905 | 30 | 90 |
| sigma aldrich chemical lookup | 1.2 | 0.3 | 8068 | 29 | 85 |
| sigma aldrich united states | 0.34 | 0.5 | 5115 | 27 | 34 |
| sigma aldrich official website | 0.1 | 0.4 | 7883 | 30 | 68 |
| sigma aldrich co. ltd | 0.53 | 0.2 | 6893 | 21 | 83 |
| sigma aldrich chemical catalog online | 0.48 | 0.1 | 7844 | 37 | 33 |
| www.sigma-aldrich.com | 1.16 | 0.6 | 9157 | 21 | 20 |
| sigma-aldrich co. usa | 0.22 | 0.6 | 4908 | 21 | 79 |
| sigma-aldrich website | 0.66 | 0.8 | 6055 | 21 | 2 |
| http://www.sigma-aldrich.com | 1.75 | 0.8 | 6652 | 28 | 13 |
