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Alsachim offers you its expertise and know-how in isotope enrichment labeling (13C, 2H, 15N, 18O, 34S) to quantify your compounds by LC-MS/MS analysis. Our teams synthesize labeled internal standards and reference standards, as well as metabolites and building blocks.
![[reference-standards] Dihydrouracil](https://www.alsachim.com/16292-list_image/Dihydrouracil.jpg)
[13C6]-3-Hydroxyanthranilic acid hydrochloride salt
Product Number: C4846
CAS number: 4920-81-4 unlabeled
Synonyms: Tryptophan metabolite-13C6
![[reference-standards] Nebivolol hydrochloride salt](https://www.alsachim.com/16377-list_image/Nebivolol-hydrochloride-salt.jpg)
![[metabolites] N-Desethylamiodarone hydrochloride salt](https://www.alsachim.com/16384-list_image/N-Desethylamiodarone-hydrochloride-salt.jpg)
![[building-blocks] Quinolinic acid](https://www.alsachim.com/16453-list_image/Quinolinic-acid.jpg)
![[metabolites] 3-Hydroxyanthranilic acid](https://www.alsachim.com/16470-list_image/3-Hydroxyanthranilic-acid.jpg)
3-Hydroxyanthranilic acid
Product Number: C6553
CAS number: 548-93-6
Synonyms: Tryptophan metabolite
[13C6]-Carbamazepine
Product Number: C5036
CAS number: 298-46-4 unlabeled
Synonyms: Carbazepine-13C6
[2H5]-1-Hydroxycarvedilol
Product Number: C5381
CAS number: 1261397-13-0
Synonyms: Carvedilol metabolite M14-d5
[2H3]-β-Artemether
Product Number: C5458
CAS number: 93787-85-0
Synonyms: [2H3]-beta-Artemether, beta-Dihydroartemisinin methyl ether-d3, beta-Artemos-d3
[13C2,2H4]-Desmethyl bosentan
Product Number: C5475
CAS number: 253688-61-8 unlabeled
Synonyms: Ro 47-8634-13C2-d4
![[metabolites] Hydroxy-tebuconazole glycoside](https://www.alsachim.com/16911-list_image/Hydroxy-tebuconazole-glycoside.jpg)
![[reference-standards] (R)-Bupropion hydrochloride salt](https://www.alsachim.com/17357-list_image/-R-Bupropion-hydrochloride-salt.jpg)
![[reference-standards] AMPA](https://www.alsachim.com/17363-list_image/AMPA.jpg)