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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.
29 products
![[reference-standards] Fluticasone furoate](https://www.alsachim.com/17767-list_image/Fluticasone-furoate.jpg)
[2H6]-Dimepranol
Product Number: C7401
CAS number: 108-16-7 unlabeled
Synonyms: [2H6]-1-Dimethylamino-2-propanol, [2H6]-N,N-Dimethylisopropanolamine
![[reference-standards] Betamethasone-21 acetate salt](https://www.alsachim.com/17820-list_image/Betamethasone-21-acetate-salt.jpg)
![[reference-standards] Nalmefene](https://www.alsachim.com/20006-list_image/Nalmefene.jpg)
[2H8]-1,4-Butanediol mononitrate
Product Number: C1550
CAS number: 1261398-94-0
Synonyms: [2H8]-4-(Nitrooxy)-1-butanol
![[reference-standards] Budesonide](https://www.alsachim.com/17804-list_image/Budesonide.jpg)
![[reference-standards] Desonide](https://www.alsachim.com/17811-list_image/Desonide.jpg)
![[metabolites] 3-(4-Chlorophenyl)-4-hydroxybutyric acid sodium salt](https://www.alsachim.com/18737-list_image/3-4-Chlorophenyl-4-hydroxybutyric-acid-sodium-salt.jpg)
3-(4-Chlorophenyl)-4-hydroxybutyric acid sodium salt
Product Number: C5048
CAS number: 1346603-21-1
Synonyms: Baclofen metabolite
[13C6]-3-(4-Chlorophenyl)-4-hydroxybutyric acid sodium salt
Product Number: C5049
CAS number: 1346603-21-1 unlabeled
Synonyms: [13C6]-Baclofen metabolite
[2H4]-3-(4-Chlorophenyl)-4-hydroxybutyric acid sodium salt
Product Number: C5050
CAS number: 1346600-25-6
Synonyms: [2H4]-Baclofen metabolite
![[reference-standards] Loteprednol etabonate](https://www.alsachim.com/19027-list_image/Loteprednol-etabonate.jpg)
![[reference-standards] Loteprednol](https://www.alsachim.com/19029-list_image/Loteprednol.jpg)