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.
52 products
![[reference-standards] Methotrexate monohydrate](https://www.alsachim.com/14586-list_image/Methotrexate-monohydrate.jpg)
![[metabolites] 7-Hydroxymethotrexate](https://www.alsachim.com/14363-list_image/7-Hydroxymethotrexate.jpg)
7-Hydroxymethotrexate
Product Number: C293
CAS number: 5939-37-7
Synonyms: 7-OHMTX, (S)-2-(4-(((2,4-Diamino-7-hydroxypteridin-6-yl)methyl)(methyl)amino)benzamido)pentanedioic acid, 4-Amino-7-hydroxy-10-methylpteroylglutamic acid, 7-Hydroxyamethopterin
![[metabolites] 1-Hydroxymidazolam β-D-glucuronide](https://www.alsachim.com/14870-list_image/1-Hydroxymidazolam-beta-D-glucuronide.jpg)
1-Hydroxymidazolam β-D-glucuronide
Product Number: C1243
CAS number: 81256-81-7
Synonyms: 1-Hydroxymidazolam beta-D-glucuronide
![[metabolites] 1-Hydroxymidazolam](https://www.alsachim.com/15717-list_image/1-Hydroxymidazolam.jpg)
![[metabolites] 4-Hydroxymidazolam](https://www.alsachim.com/16655-list_image/4-Hydroxymidazolam.jpg)
![[reference-standards] Cytarabine](https://www.alsachim.com/15776-list_image/Cytarabine.jpg)
![[reference-standards] Pemetrexed](https://www.alsachim.com/15254-list_image/Pemetrexed.jpg)
![[reference-standards] Gemcitabine hydrochloride salt](https://www.alsachim.com/15039-list_image/Gemcitabine-hydrochloride-salt.jpg)
Gemcitabine hydrochloride salt
Product Number: C1504
CAS number: 122111-03-9
Synonyms: 2',2'-Difluoro-2'-deoxycytidine hydrochloride salt
![[reference-standards] Riociguat](https://www.alsachim.com/16386-list_image/Riociguat.jpg)
![[reference-standards] Ambrisentan](https://www.alsachim.com/15237-list_image/Ambrisentan.jpg)
![[reference-standards] Terazosin hydrochloride salt](https://www.alsachim.com/20204-list_image/Terazosin-hydrochloride-salt.jpg)
Terazosin hydrochloride salt
Product Number: C7012
CAS number: 63074-08-8
Synonyms: Abbott 45975, 1-(4-Amino-6,7-dimethoxy-2-quinazolinyl)-4-[(tetrahydro-2-furanyl)carbonyl]piperazine hydrochloride
![[reference-standards] Travoprost acid](https://www.alsachim.com/20235-list_image/Travoprost-acid.jpg)
![[reference-standards] Selexipag active metabolite](https://www.alsachim.com/20218-list_image/Selexipag-active-metabolite.jpg)
![[metabolites] 4'-Hydroxyphenylcarvedilol](https://www.alsachim.com/14983-list_image/4-Hydroxyphenylcarvedilol.jpg)
![[metabolites] 5'-Hydroxyphenylcarvedilol](https://www.alsachim.com/15109-list_image/5-Hydroxyphenylcarvedilol.jpg)
5'-Hydroxyphenylcarvedilol
Product Number: C1644
CAS number: 142227-51-8
Synonyms: Carvedilol metabolite M5
![[metabolites] 4-Hydroxymethylambrisentan](https://www.alsachim.com/15277-list_image/4-Hydroxymethylambrisentan.jpg)
![[metabolites] Ambrisentan acyl-β-D-glucuronide](https://www.alsachim.com/15598-list_image/Ambrisentan-acyl-beta-D-glucuronide.jpg)
Ambrisentan acyl-β-D-glucuronide
Product Number: C3131
CAS number: 1106685-58-8
Synonyms: Ambrisentan acyl-beta-D-glucuronide
![[reference-standards] (S)-Doxazosin](https://www.alsachim.com/19510-list_image/-S-Doxazosin.jpg)
![[metabolites] Prazosin N-Glucuronide](https://www.alsachim.com/19551-list_image/Prazosin-N-Glucuronide.jpg)
![[reference-standards] Doxazosin](https://www.alsachim.com/19511-list_image/Doxazosin.jpg)