| 1 |  sigmaaldrich.com | Science and Education > Chemistry | 1 | 00:03:08 | 3.07 | 47.71% |
| 2 |  rsc.org | Science and Education > Chemistry | 1 | 00:03:14 | 4.24 | 22.27% |
| 3 |  chemicalbook.com | Science and Education > Chemistry | 1 | 00:02:46 | 3.33 | 51.98% |
| 4 |  fishersci.com | Science and Education > Chemistry | 1 | 00:02:47 | 4.07 | 52.87% |
| 5 |  ptable.com | Science and Education > Chemistry | = | 00:00:59 | 2.14 | 48.62% |
| 6 |  cas.org | Science and Education > Chemistry | = | 00:07:23 | 10.29 | 20.46% |
| 7 |  tcichemicals.com | Science and Education > Chemistry | 1 | 00:03:38 | 2.88 | 45.79% |
| 8 |  x-mol.com | Science and Education > Chemistry | 1 | 00:04:50 | 4.43 | 30.5% |
| 9 |  antpedia.com | Science and Education > Chemistry | 4 | 00:01:15 | 2.49 | 48.01% |
| 10 |  eurofins.com | Science and Education > Chemistry | 4 | 00:05:28 | 6.49 | 38.03% |
| 11 |  vwr.com | Science and Education > Chemistry | 1 | 00:03:36 | 5.30 | 33.9% |
| 12 |  thermofisher.cn | Science and Education > Chemistry | 2 | 00:01:45 | 4.44 | 35.7% |
| 13 |  merckmillipore.com | Science and Education > Chemistry | 5 | 00:02:27 | 2.71 | 43.11% |
| 14 |  sciencenotes.org | Science and Education > Chemistry | 3 | 00:00:45 | 1.82 | 57.76% |
| 15 |  masterorganicchemistry.com | Science and Education > Chemistry | 1 | 00:02:39 | 2.64 | 48.51% |
| 16 |  carlroth.com | Science and Education > Chemistry | 1 | 00:02:03 | 3.19 | 46.62% |
| 17 |  aceacademy.lk | Science and Education > Chemistry | 15 | 00:07:26 | 5.28 | 38.18% |
| 18 |  aist.go.jp | Science and Education > Chemistry | 2 | 00:02:18 | 3.22 | 51.89% |
| 19 |  fz-juelich.de | Science and Education > Chemistry | 3 | 00:05:12 | 4.88 | 36.96% |
| 20 |  waters.com | Science and Education > Chemistry | 8 | 00:02:45 | 2.31 | 46.54% |
| 21 |  shimadzu.co.jp | Science and Education > Chemistry | 2 | 00:02:51 | 3.39 | 45.85% |
| 22 |  chemistryworld.com | Science and Education > Chemistry | 7 | 00:00:42 | 1.66 | 52.5% |
| 23 |  chemrxiv.org | Science and Education > Chemistry | 2 | 00:01:13 | 2.60 | 40.87% |
| 24 |  anrfonline.in | Science and Education > Chemistry | 7 | 00:05:53 | 5.74 | 30.55% |
| 25 |  instrument.com.cn | Science and Education > Chemistry | 2 | 00:01:39 | 2.48 | 52.65% |
| 26 |  stepenin.ru | Science and Education > Chemistry | 5 | 00:08:59 | 8.96 | 40.96% |
| 27 |  bruker.com | Science and Education > Chemistry | 11 | 00:01:23 | 2.63 | 46.89% |
| 28 |  organic-chemistry.org | Science and Education > Chemistry | 9 | 00:01:33 | 2.33 | 52.32% |
| 29 |  sartorius.com | Science and Education > Chemistry | 6 | 00:02:05 | 2.94 | 42.03% |
| 30 |  chemspider.com | Science and Education > Chemistry | 4 | 00:01:10 | 1.87 | 44.8% |
| 31 |  acetyl.ru | Science and Education > Chemistry | 22 | 00:00:59 | 1.66 | 39.58% |
| 32 |  muctr.ru | Science and Education > Chemistry | 9 | 00:05:21 | 4.61 | 35.3% |
| 33 |  nitech.ac.jp | Science and Education > Chemistry | 7 | 00:05:34 | 6.14 | 30.05% |
| 34 |  chemguide.co.uk | Science and Education > Chemistry | 4 | 00:00:44 | 2.34 | 43.57% |
| 35 |  chemistrysteps.com | Science and Education > Chemistry | 9 | 00:00:52 | 1.66 | 45.09% |
| 36 |  sciopen.com | Science and Education > Chemistry | 13 | 00:01:11 | 1.96 | 53.23% |
| 37 |  hitachi-hightech.com | Science and Education > Chemistry | 13 | 00:01:45 | 3.15 | 47.49% |
| 38 |  webqc.org | Science and Education > Chemistry | 7 | 00:00:58 | 2.09 | 45.35% |
| 39 |  benchchem.com | Science and Education > Chemistry | 18 | 00:01:03 | 1.66 | 52.42% |
| 40 |  bldpharm.com | Science and Education > Chemistry | 7 | 00:02:43 | 2.92 | 39.67% |
| 41 |  chem-station.com | Science and Education > Chemistry | 6 | 00:02:46 | 1.93 | 61.26% |
| 42 |  shimadzu.com | Science and Education > Chemistry | 10 | 00:00:58 | 2.87 | 44.8% |
| 43 |  pharmdbm.com | Science and Education > Chemistry | 114 | 00:08:27 | 2.50 | 44.2% |
| 44 |  metrohm.com | Science and Education > Chemistry | 11 | 00:02:38 | 3.54 | 35.45% |
| 45 |  iupac.org | Science and Education > Chemistry | 1 | 00:00:42 | 1.85 | 44.6% |
| 46 |  krict.re.kr | Science and Education > Chemistry | 7 | 00:09:50 | 5.40 | 19.7% |
| 47 |  reaxys.com | Science and Education > Chemistry | 8 | 00:06:14 | 13.69 | 14.05% |
| 48 |  labx.com | Science and Education > Chemistry | 8 | 00:01:10 | 2.71 | 45.41% |
| 49 |  ifasonline.com | Science and Education > Chemistry | 18 | 00:06:45 | 6.95 | 37.2% |
| 50 |  chemicalaid.com | Science and Education > Chemistry | 6 | 00:00:55 | 2.03 | 42.08% |
