composés chimiques
| Nom | Type | Notoriété | Popularité |
|---|---|---|---|
| Xylitol | Concept | 47 | 92.8 |
| Xyloglucane | Composé Chimique | 10 | 4.3 |
| Xylometazoline | Concept | 31 | 15.7 |
| Xylulose | Concept | 27 | 4.3 |
| Xylulose-5-phosphate | Concept | 15 | 0.8 |
| Xylène | Composé Chimique | 50 | 114.7 |
| Xénate | Composé Chimique | 2 | 0.2 |
| Xénobiotique | Concept | 33 | 37.4 |
| Xénocristal | Substance | 2 | 0.1 |
| Xénon 133 | Concept | 6 | 1.1 |
| Xénon 135 | Concept | 12 | 3.4 |
| Yarn Bombing | Substance | 17 | 5.5 |
| Yata No Kagami | Substance | 18 | 6.5 |
| Yct529 | Concept | 7 | 0.0 |
| Yellowcake | Concept | 31 | 24.5 |
| Yersinia Cin | Composé Chimique | 1 | 0.2 |
| Yersiniabactine | Composé Chimique | 9 | 0.2 |
| Yessotoxine | Concept | 9 | 0.3 |
| Ylangène | Composé Chimique | 1 | 0.0 |
| Ynolate | Composé Chimique | 8 | 0.3 |
| Yohimbine | Concept | 28 | 29.5 |
| Youth Dew | Concept | 1 | 1.0 |
| Yttrium 90 | Concept | 12 | 4.1 |
| Yunjin | Substance | 22 | 0.9 |
| Zabuton | Substance | 19 | 8.0 |
| Zafirlukast | Concept | 20 | 0.0 |
| Zafu | Substance | 12 | 10.8 |
| Zalcitabine | Concept | 17 | 1.1 |
| Zaleplon | Concept | 21 | 5.8 |
| Zanamivir | Concept | 29 | 4.1 |
| Zanubrutinib | Concept | 9 | 0.4 |
| Zardozi | Substance | 16 | 0.4 |
| Zeranol | Concept | 11 | 0.3 |
| Ziconotide | Concept | 18 | 0.8 |
| Zidovudine | Concept | 46 | 48.9 |
| Zilucoplan | Concept | 4 | 0.0 |
| Zimelidine | Concept | 15 | 0.2 |
| Zinc | Élément Chimique | 178 | 363.6 |
| Zincate | Concept | 9 | 0.0 |
| Zingérone | Concept | 18 | 2.6 |
| Zinèbe | Concept | 16 | 3.4 |
| Ziprasidone | Concept | 27 | 0.0 |
| Zirame | Concept | 10 | 2.3 |
| Zircone | Concept | 35 | 59.1 |
| Zircone Y-tzp | Concept | 3 | 6.4 |
| Zirconocène | Concept | 5 | 0.0 |
| Ziziphine | Concept | 10 | 0.4 |
| Zofenopril | Concept | 17 | 1.4 |
| Zolazépam | Concept | 11 | 0.9 |
| Zoliflodacine | Concept | 7 | 0.4 |