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.
182 products
![[reference-standards] Zofenopril](https://www.alsachim.com/21176-list_image/Zofenopril.jpg)
![[reference-standards] Zofenoprilat](https://www.alsachim.com/21175-list_image/Zofenoprilat.jpg)
![[reference-standards] Perindopril arginine](https://www.alsachim.com/16432-list_image/Perindopril-arginine-salt.jpg)
![[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
![[reference-standards] N-nitrosodimethylamine](https://www.alsachim.com/20863-list_image/N-nitrosodimethylamine.jpg)
![[reference-standards] N-Nitrosodi-n-butylamine](https://www.alsachim.com/20866-list_image/N-Nitrosodi-n-butylamine.jpg)
![[reference-standards] N-nitrosodiethylamine](https://www.alsachim.com/20864-list_image/N-nitrosodiethylamine.jpg)
![[reference-standards] Verapamil hydrochloride salt](https://www.alsachim.com/16307-list_image/Verapamil-hydrochloride-salt.jpg)
![[reference-standards] Cilnidipine](https://www.alsachim.com/18705-list_image/Cilnidipine.jpg)
![[metabolites] Ramiprilat](https://www.alsachim.com/16341-list_image/Ramiprilat.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)
![[metabolites] Losartan carboxylic acid](https://www.alsachim.com/15381-list_image/Losartan-carboxylic-acid.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] Bufuralol hydrochloride salt](https://www.alsachim.com/20700-list_image/Bufuralol-hydrochloride-salt.jpg)
![[reference-standards] Bufuralol](https://www.alsachim.com/20699-list_image/Bufuralol.jpg)
![[reference-standards] Urapidil](https://www.alsachim.com/16795-list_image/Urapidil.jpg)
![[reference-standards] Sildenafil citrate salt](https://www.alsachim.com/14350-list_image/Sildenafil-citrate-salt.jpg)
Sildenafil citrate salt
Product Number: C2784
CAS number: 171599-83-0
Synonyms: 5-[2-Ethoxy-5-[(4-methyl-1-piperazinyl)sulfonyl]phenyl]-1,6-dihydro-1-methyl-3-propyl-7H-pyrazolo[4,3-d]pyrimidin-7-one 2-hydroxy-1,2,3-propanetricarboxylate