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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.
59 products
![[metabolites] Canrenone](https://www.alsachim.com/15836-list_image/Canrenone.jpg)
![[reference-standards] Minocycline hydrochloride salt](https://www.alsachim.com/16528-list_image/Minocycline-hydrochloride-salt.jpg)
Minocycline hydrochloride salt
Product Number: C5131
CAS number: 13614-98-7
Synonyms: Minocyn hydrochloride
[13C,2H3]-Doxycycline trifluoroacetate salt
Product Number: C6725
CAS number: 564-25-0 unlabeled free base
![[reference-standards] Acetazolamide](https://www.alsachim.com/14782-list_image/Acetazolamide.jpg)
![[reference-standards] Mizoribine](https://www.alsachim.com/19370-list_image/Mizoribine.jpg)
Mizoribine
Product Number: C6075
CAS number: 50924-49-7
Synonyms: Bredinin, HE-69, NSC-289637, 1-[(2R,3R,4S,5R)-3,4-Dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-5-hydroxyimidazole-4-carboxamide
![[metabolites] Deacetylspironolactone](https://www.alsachim.com/19403-list_image/Deacetylspironolactone.jpg)
Deacetylspironolactone
Product Number: C6133
CAS number: 38753-76-3
Synonyms: Mercaptospironolactone, SC-24813, 3-Oxo-17a-pregna-4-ene-7a-(thia)-21,17-carbolactone
![[metabolites] N-desmethyldemeclocycline](https://www.alsachim.com/19630-list_image/N-desmethyldemeclocycline.jpg)
![[reference-standards] Demeclocycline](https://www.alsachim.com/19632-list_image/Demeclocycline.jpg)
![[metabolites] O-Desmethyl apremilast](https://www.alsachim.com/19674-list_image/O-Desmethyl-apremilast.jpg)
![[reference-standards] Azathioprine](https://www.alsachim.com/19804-list_image/Azathioprine.jpg)