composés chimiques
| Nom | Type | Notoriété | Popularité |
|---|---|---|---|
| Jeu de Barres | Substance | 27 | 34.9 |
| Jicky | Concept | 4 | 7.9 |
| Jk-05 | Concept | 5 | 0.6 |
| Jonction Cellulaire | Concept | 35 | 3.9 |
| Jonction Communicante | Concept | 30 | 34.5 |
| Jonction Serrée | Concept | 25 | 49.1 |
| Josamycine | Concept | 18 | 18.3 |
| Joy | Concept | 3 | 3.3 |
| Jp-4 | Objet | 5 | 1.3 |
| Jp-5 | Objet | 3 | 6.1 |
| Jp-8 | Objet | 11 | 2.4 |
| Jq1 | Concept | 7 | 1.7 |
| Juglon | Concept | 19 | 12.2 |
| Jujube | Fruit | 8 | 180.0 |
| Jus de Datte | Aliment | 4 | 0.0 |
| Jwh-018 | Concept | 14 | 2.1 |
| Kaempféride | Concept | 12 | 0.7 |
| Kaempféritrine | Concept | 8 | 0.5 |
| Kaempférol | Concept | 21 | 6.4 |
| Kahweol | Concept | 12 | 0.6 |
| Kallidine | Concept | 17 | 0.9 |
| Kanamycine | Médicament | 20 | 22.4 |
| Kanamycine | Concept | 15 | 0.2 |
| Kaolin | Substance | 40 | 144.1 |
| Karashi | Substance | 14 | 6.8 |
| Karowe Ak6 | Minéral | 13 | 0.2 |
| Karyophérine | Composé Chimique | 10 | 1.8 |
| Kasugamycine | Concept | 9 | 0.4 |
| Katsuogi | Substance | 5 | 0.8 |
| Kaurane | Concept | 3 | 0.3 |
| Kaurit | Substance | 1 | 0.0 |
| Kavaïne | Concept | 12 | 1.7 |
| Kedarcidine | Composé Chimique | 6 | 0.0 |
| Kefiran | Composé Chimique | 5 | 2.3 |
| Kekulène | Concept | 17 | 0.3 |
| Kelevan | Concept | 2 | 0.4 |
| Ketolide | Composé Chimique | 8 | 4.0 |
| Kevlar | Substance | 51 | 182.2 |
| Khôl | Substance | 38 | 93.6 |
| Khādī | Substance | 27 | 2.4 |
| Killer Queen By Katy Perry | Concept | 6 | 1.2 |
| King A | Composé Chimique | 1 | 3.0 |
| King B | Composé Chimique | 1 | 3.0 |
| Kinine | Composé Chimique | 15 | 20.1 |
| Kinome | Composé Chimique | 4 | 1.2 |
| Kinétine | Concept | 12 | 2.5 |
| Kinétochore | Concept | 28 | 24.2 |
| Kinétoplaste | Composé Chimique | 16 | 3.9 |
| Kligler-hajna | Composé Chimique | 1 | 13.5 |
| Kls-13019 | Concept | 2 | 0.0 |