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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.
166 products
![[reference-standards] (R)-(-)-Cicletanine](https://www.alsachim.com/17556-list_image/-R---Cicletanine.jpg)
![[reference-standards] (S)-(+)-Cicletanine](https://www.alsachim.com/17555-list_image/-S---Cicletanine.jpg)
![[reference-standards] 2,4-Dichlorophenoxyacetic acid](https://www.alsachim.com/14745-list_image/2-4-Dichlorophenoxyacetic-acid.jpg)
![[metabolites] 4-Epitetracycline hydrochloride salt](https://www.alsachim.com/18135-list_image/4-Epitetracycline-hydrochloride-salt.jpg)
![[metabolites] 4-Hydroxytriamterene](https://www.alsachim.com/19005-list_image/4-Hydroxytriamterene.jpg)
4-Hydroxytriamterene
Product Number: C5561
CAS number: 1226-52-4
Synonyms: 4-Hydroxydyrenium, 2,4,7-Triamino-6-(4-hydroxyphenyl)-pteridine
![[metabolites] 4-Hydroxytriamterene sulfate salt](https://www.alsachim.com/19007-list_image/4-Hydroxytriamterene-sulfate-salt.jpg)
4-Hydroxytriamterene sulfate salt
Product Number: C5563
CAS number: 1476-48-8
Synonyms: 2,4,7-Triamino-6-(4-hydroxyphenyl)-pteridine sulfate
![[metabolites] 4-Hydroxytriamterene sulfate sodium salt](https://www.alsachim.com/19008-list_image/4-Hydroxytriamterene-sulfate-sodium-salt.jpg)
4-Hydroxytriamterene sulfate sodium salt
Product Number: C5564
CAS number: 73756-87-3
Synonyms: 2,4,7-Triamino-6-(4-hydroxyphenyl)-pteridine sulfate, sodium salt
![[metabolites] 5-Hydroxyindapamide, racemic mixture](https://www.alsachim.com/15582-list_image/5-Hydroxyindapamide-racemic-mixture.jpg)
![[building-blocks] Acylated arbutin](https://www.alsachim.com/18032-list_image/Acylated-arbutin.jpg)
Acylated arbutin
Product Number: C316
CAS number: 6129-66-4
Synonyms: (2R,3R,4S,5R,6S)-2-(acetoxymethyl)-6-(4-hydroxyphenoxy)tetrahydro-2H-pyran-3,4,5-triyl triacetate, acylated arbutine
![[reference-standards] Alachlore OXA](https://www.alsachim.com/19978-list_image/Alachlore-OXA.jpg)
![[reference-standards] Althiazide](https://www.alsachim.com/15810-list_image/Althiazide.jpg)
![[reference-standards] Amiloride hydrochloride salt](https://www.alsachim.com/19570-list_image/Amiloride-hydrochloride-salt.jpg)
![[reference-standards] AMPA](https://www.alsachim.com/17363-list_image/AMPA.jpg)
![[reference-standards] Bendroflumethiazide](https://www.alsachim.com/19657-list_image/Bendroflumethiazide.jpg)
![[reference-standards] Bentazon](https://www.alsachim.com/18978-list_image/Bentazon.jpg)
![[reference-standards] Carbetamide](https://www.alsachim.com/16291-list_image/Carbetamide.jpg)
![[reference-standards] Chlormequat chloride salt](https://www.alsachim.com/18749-list_image/Chlormequat-chloride-salt.jpg)
Chlormequat chloride salt
Product Number: C5072
CAS number: 999-81-5
Synonyms: Chlorocholine chloride
![[reference-standards] Chlorthalidone](https://www.alsachim.com/15811-list_image/Chlorthalidone.jpg)
![[reference-standards] Chlortoluron carboxylic analog 2](https://www.alsachim.com/20253-list_image/Chlortoluron-carboxylic-analog-2.jpg)
![[reference-standards] Cicletanine hydrochloride salt](https://www.alsachim.com/14787-list_image/Cicletanine-hydrochloride-salt.jpg)