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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.
81 products
![[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] Chlortoluron carboxylic analog 2](https://www.alsachim.com/20253-list_image/Chlortoluron-carboxylic-analog-2.jpg)
![[reference-standards] Isoproturon](https://www.alsachim.com/19456-list_image/Isoproturon.jpg)
Isoproturon
Product Number: C6241
CAS number: 34123-59-6
Synonyms: 3-(4-Isopropylphenyl)-1,1-dimethylurea
![[metabolites] Metazachlor OXA](https://www.alsachim.com/19476-list_image/Metazachlor-OXA.jpg)
![[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)
![[reference-standards] Oxadiazon](https://www.alsachim.com/19695-list_image/Oxadiazon.jpg)
![[reference-standards] Ioxynil](https://www.alsachim.com/19740-list_image/Ioxynil.jpg)