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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.
28 products
![[metabolites] Methyl diethyldithiocarbamate](https://www.alsachim.com/15017-list_image/Methyl-diethyldithiocarbamate.jpg)
![[reference-standards] BB-22](https://www.alsachim.com/19682-list_image/BB-22.jpg)
![[reference-standards] ADBICA](https://www.alsachim.com/19948-list_image/ADBICA.jpg)
![[metabolites] 5-Hydroxypentyl-ADBICA](https://www.alsachim.com/19949-list_image/5-Hydroxypentyl-ADBICA.jpg)
![[metabolites] BB-22 3-carboxyindole metabolite](https://www.alsachim.com/17186-list_image/BB-22-3-carboxyindole-metabolite.jpg)
[2H6]-4-Keto 13-cis-retinoic acid
Product Number: C7011
CAS number: 71748-58-8 unlabeled
Synonyms: 4-Oxo-13-cis-retinoic acid-d6, 4-Oxo-isotretinoin-d6
[13C3]-13-cis-Retinoic acid
Product Number: C7239
CAS number: 4759-48-2 unlabeled
Synonyms: 13-cis-Vitamin A acid-13C3, Accutane-13C3, Isotretinoin-13C3
![[reference-standards] AM694](https://www.alsachim.com/18909-list_image/AM694.jpg)
![[reference-standards] BML 190](https://www.alsachim.com/19134-list_image/BML-190.jpg)
![[reference-standards] Vitamin A](https://www.alsachim.com/16396-list_image/Vitamin-A.jpg)
[2H5]-Retinyl acetate salt
Product Number: C4928
CAS number: 127-47-9 unlabeled
Synonyms: Vitamin A acetate-d5, Retinoid analogues-d5, Retinol acetate-d5
![[metabolites] 13-cis-Retinoic acid](https://www.alsachim.com/15615-list_image/13-cis-Retinoic-acid.jpg)
[2H5]-13-cis-Retinoic acid
Product Number: C3164
CAS number: 4759-48-2 unlabeled
Synonyms: 13-cis-Vitamin A acid-d5, Accutane-d5, Isotretinoin-d5
![[metabolites] 4-Keto 13-cis-retinoic acid](https://www.alsachim.com/15617-list_image/4-Keto-13-cis-retinoic-acid.jpg)
4-Keto 13-cis-retinoic acid
Product Number: C3165
CAS number: 71748-58-8
Synonyms: 4-Oxo-13-cis-retinoic Acid, 4-Oxo-isotretinoin
![[metabolites] 9-cis-Retinoic acid](https://www.alsachim.com/15618-list_image/9-cis-Retinoic-acid.jpg)
9-cis-Retinoic acid
Product Number: C3167
CAS number: 5300-03-8
Synonyms: Alitretinoin, Panretin, 9-cis-Tretinoin, Panrexin