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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] Pristinamycin IIA](https://www.alsachim.com/15025-list_image/Pristinamycin-IIA.jpg)
[U-ring-13C6]-Salicylic acid
Product Number: M938
CAS number: 1189678-81-6
Synonyms: Hydroxybenzoic acid-13C6
![[reference-standards] Dabigatran](https://www.alsachim.com/15082-list_image/Dabigatran.jpg)
![[reference-standards] Amodiaquine](https://www.alsachim.com/15115-list_image/Amodiaquine.jpg)
![[metabolites] N-Desethylamodiaquine](https://www.alsachim.com/15159-list_image/N-Desethylamodiaquine.jpg)
[2H5]-Fluticasone propionate
Product Number: C1910
CAS number: 1093258-28-6
Synonyms: Fluticasone propionate-D5
![[reference-standards] Apixaban](https://www.alsachim.com/15256-list_image/Apixaban.jpg)
![[reference-standards] Pazopanib hydrochloride salt](https://www.alsachim.com/15267-list_image/Pazopanib-hydrochloride-salt.jpg)
![[reference-standards] Rivaroxaban](https://www.alsachim.com/15272-list_image/Rivaroxaban.jpg)