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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.
97 products
![[reference-standards] Doxorubicin hydrochloride salt](https://www.alsachim.com/14645-list_image/Doxorubicin-hydrochloride-salt.jpg)
![[reference-standards] Fosfomycin](https://www.alsachim.com/20678-list_image/Fosfomycin.jpg)
Fosfomycin
Product Number: C9125
CAS number: 23155-02-4
Synonyms: (-)-(1R,2S)-(1,2-Epoxypropyl)phosphonic acid
![[reference-standards] Streptomycin A](https://www.alsachim.com/20683-list_image/Streptomycin-A.jpg)
![[metabolites] N-Acetyl Dapsone](https://www.alsachim.com/19489-list_image/N-Acetyl-Dapsone.jpg)
![[metabolites] 4-Demethyltrimethoprim](https://www.alsachim.com/19529-list_image/4-Demethyltrimethoprim.jpg)
![[reference-standards] Diminazene dihydrochloride salt](https://www.alsachim.com/20245-list_image/Diminazene-dihydrochloride-salt.jpg)
[2H6]-Fusidic acid sodium salt
Product Number: C1002
CAS number: 751-94-0 unlabeled
Synonyms: [2H6]-Fucidin, [2H6]-sodium Fusidate
[2H4]-Dapsone
Product Number: C3775
CAS number: 1346602-12-7
Synonyms: [2H4]-4,4'-Sulfonylbis-benzenamine
[13C3]-Nitrofurantoin metabolite hydrochloride salt
Product Number: C6971
CAS number: 2827-56-7 unlabeled
Synonyms: [13C3]-1-Aminohydantoin, [13C3]-AHD
![[reference-standards] D-Cycloserine](https://www.alsachim.com/19746-list_image/D-Cycloserine.jpg)
![[reference-standards] Clofazimine](https://www.alsachim.com/19770-list_image/Clofazimine.jpg)
![[reference-standards] Dioxidine](https://www.alsachim.com/19797-list_image/Dioxidine.jpg)
[2H5,15N]-Tanespimycin
Product Number: C7335
CAS number: 75747-14-7 unlabeled
Synonyms: [2H5, 15N]-17-AAG // [2H5, 15N]-17-(Allylamino)-17-demethoxy-geldanamycin, [2H5, 15N]-[(3R,5S,6R,7S,8E,10S,11S,12Z,14E)-6-Hydroxy-5,11-dimethoxy-3,7,9,15-tetramethyl-16,20,22-trioxo-21-(prop-2-enylamino)-17-azabicyclo[16.3.1]docosa-1(21),8,12,14,18-pentaen-10-yl] carbamate