![[reference-standards] 4,6-Dioxoheptanoic acid](https://www.alsachim.com/16969-list_image/4-6-Dioxoheptanoic-acid.jpg)
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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.
105 products
![[reference-standards] AMPA](https://www.alsachim.com/17363-list_image/AMPA.jpg)
![[reference-standards] Azoxystrobin](https://www.alsachim.com/17671-list_image/Azoxystrobin.jpg)
![[reference-standards] Benazeprilat hydrochloride salt](https://www.alsachim.com/15564-list_image/Benazeprilat-hydrochloride-salt.jpg)
![[reference-standards] Benztropine mesylate salt](https://www.alsachim.com/19732-list_image/Benztropine-mesylate-salt.jpg)
![[reference-standards] Berberubine chloride salt](https://www.alsachim.com/18571-list_image/Berberubine-chloride-salt.jpg)
![[reference-standards] Boscalid](https://www.alsachim.com/19518-list_image/Boscalid.jpg)
![[reference-standards] Brinzolamide](https://www.alsachim.com/18572-list_image/Brinzolamide.jpg)
![[reference-standards] Captopril](https://www.alsachim.com/17192-list_image/Captopril.jpg)
![[reference-standards] Chlorothalonil](https://www.alsachim.com/19895-list_image/Chlorothalonil.jpg)
![[reference-standards] Delapril](https://www.alsachim.com/20073-list_image/Delapril.jpg)
![[reference-standards] Enalapril](https://www.alsachim.com/20116-list_image/Enalapril.jpg)
![[metabolites] Enalaprilat](https://www.alsachim.com/20117-list_image/Enalaprilat.jpg)
![[reference-standards] Fipamezole](https://www.alsachim.com/17760-list_image/Fipamezole.jpg)
![[reference-standards] Fluxapyroxad](https://www.alsachim.com/20702-list_image/Fluxapyroxad.jpg)
![[metabolites] Fosinoprilat](https://www.alsachim.com/15496-list_image/Fosinoprilat.jpg)
![[reference-standards] Hydroquinidine](https://www.alsachim.com/16578-list_image/Hydroquinidine.jpg)
![[reference-standards] Lisinopril dihydrate](https://www.alsachim.com/14833-list_image/Lisinopril-dihydrate.jpg)
![[reference-standards] Perindopril arginine](https://www.alsachim.com/16432-list_image/Perindopril-arginine-salt.jpg)
![[reference-standards] Perindopril erbumine
salt](https://www.alsachim.com/17039-list_image/Perindopril-erbumine-salt.jpg)