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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.
110 products
![[reference-standards] Acetaminophen](https://www.alsachim.com/15091-list_image/Acetaminophen.jpg)
Acetaminophen
Product Number: C1609
CAS number: 103-90-2
Synonyms: Acetoaminophenol, N-(4-Hydroxyphenyl)-acetamide, N-Acetyl p-aminophenol, Paracetamol
![[metabolites] Acetaminophen β-D-glucuronide](https://www.alsachim.com/20706-list_image/Acetaminophen-beta-D-glucuronide.jpg)
Acetaminophen β-D-glucuronide
Product Number: C9165
CAS number: 16110-10-4
Synonyms: Acetaminophen beta-D-glucuronide
![[reference-standards] Azoxystrobin](https://www.alsachim.com/17671-list_image/Azoxystrobin.jpg)
![[reference-standards] Belnacasan](https://www.alsachim.com/19189-list_image/Belnacasan.jpg)
Belnacasan
Product Number: C5851
CAS number: 273404-37-8
Synonyms: VX-765, (2S)-1-[(2S)-2-[(4-Amino-3-chlorobenzoyl)amino]-3,3-dimethylbutanoyl]-N-[(2R,3S)-2-ethoxy-5-oxooxolan-3-yl]pyrrolidine-2-carboxamide
![[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] Brivaracetam](https://www.alsachim.com/20097-list_image/Brivaracetam.jpg)
![[reference-standards] Carisbamate](https://www.alsachim.com/17775-list_image/Carisbamate.jpg)
![[reference-standards] Cenobamate, racemic mixture](https://www.alsachim.com/20690-list_image/Cenobamate-racemic-mixture.jpg)
![[reference-standards] Chlorothalonil](https://www.alsachim.com/19895-list_image/Chlorothalonil.jpg)
![[reference-standards] Deracoxib](https://www.alsachim.com/19864-list_image/Deracoxib.jpg)
![[metabolites] Desmethyl-lacosamide](https://www.alsachim.com/18081-list_image/Desmethyl-lacosamide.jpg)
![[reference-standards] Diflunisal](https://www.alsachim.com/19756-list_image/Diflunisal.jpg)
![[reference-standards] Etoricoxib](https://www.alsachim.com/16306-list_image/Etoricoxib.jpg)
![[reference-standards] Felbamate](https://www.alsachim.com/20815-list_image/Felbamate.jpg)
![[reference-standards] Fluxapyroxad](https://www.alsachim.com/20702-list_image/Fluxapyroxad.jpg)
![[reference-standards] Imrecoxib](https://www.alsachim.com/19259-list_image/Imrecoxib.jpg)
![[reference-standards] Lacosamide](https://www.alsachim.com/15655-list_image/Lacosamide.jpg)
![[reference-standards] Lamotrigine](https://www.alsachim.com/14872-list_image/Lamotrigine.jpg)