Reference standards
The wide portfolio of Alsachim's reference standards covers a broad range of applications: pharmaceutical, environmental analysis, food and beverages, doping, toxicology and forensic analysis.
55 products
![[reference-standards] Valdetamide](https://www.alsachim.com/20605-list_image/Valdetamide.jpg)
![[reference-standards] Ursodeoxycholic acid 3-sulfate disodium salt](https://www.alsachim.com/15660-list_image/Ursodeoxycholic-acid-3-sulfate-disodium-salt.jpg)
![[metabolites] Tetranor-PGEM](https://www.alsachim.com/19710-list_image/Tetranor-PGEM.jpg)
![[reference-standards] Tetrahydrofolic acid](https://www.alsachim.com/19041-list_image/Tetrahydrofolic-acid.jpg)
![[reference-standards] Terizidone](https://www.alsachim.com/17712-list_image/Terizidone.jpg)
![[metabolites] Tele-methylhistamine dihydrochloride salt](https://www.alsachim.com/18146-list_image/Tele-methylhistamine-dihydrochloride-salt.jpg)
![[reference-standards] SB 408214](https://www.alsachim.com/19111-list_image/SB-408214.jpg)
![[reference-standards] Ristocetin A monosulfate](https://www.alsachim.com/19955-list_image/Ristocetin-A-monosulfate.jpg)
![[reference-standards] Rifaximin](https://www.alsachim.com/16845-list_image/Rifaximin.jpg)
![[reference-standards] Rifapentine](https://www.alsachim.com/16310-list_image/Rifapentine.jpg)
![[reference-standards] Rifampicin](https://www.alsachim.com/14808-list_image/Rifampicin.jpg)
![[reference-standards] Rifabutin](https://www.alsachim.com/15440-list_image/Rifabutin.jpg)
![[reference-standards] Quabodepistat](https://www.alsachim.com/21040-list_image/Quabodepistat.jpg)
![[reference-standards] Pyrazinamide](https://www.alsachim.com/15837-list_image/Pyrazinamide.jpg)
![[reference-standards] Pristanic acid](https://www.alsachim.com/17272-list_image/Pristanic-acid.jpg)
![[reference-standards] Pretomanid](https://www.alsachim.com/19241-list_image/Pretomanid.jpg)
Pretomanid
Product Number: C5916
CAS number: 187235-37-6
Synonyms: PA-824, (6S)-2-Nitro-6-[[4-(trifluoromethoxy)phenyl]methoxy]-6,7-dihydro-5H-imidazo[2,1-b][1,3]oxazine
![[reference-standards] Pimelic acid](https://www.alsachim.com/19624-list_image/Pimelic-acid.jpg)
![[reference-standards] Phenylacetyl L-glutamine](https://www.alsachim.com/16451-list_image/Phenylacetyl-L-glutamine.jpg)
![[reference-standards] N-Acetyl-5-hydroxytryptamine](https://www.alsachim.com/18232-list_image/N-Acetyl-5-hydroxytryptamine.jpg)
N-Acetyl-5-hydroxytryptamine
Product Number: C3721
CAS number: 1210-83-9
Synonyms: N-Acetylserotonin, Normelatonin