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.
49 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
![[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] Urapidil](https://www.alsachim.com/16795-list_image/Urapidil.jpg)
![[reference-standards] Tropatepine](https://www.alsachim.com/20252-list_image/Tropatepine.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
![[reference-standards] Bosentan sodium salt](https://www.alsachim.com/15315-list_image/Bosentan-sodium-salt.jpg)
![[metabolites] Hydroxybosentan](https://www.alsachim.com/15600-list_image/Hydroxybosentan.jpg)
Hydroxybosentan
Product Number: C3134
CAS number: 253688-60-7
Synonyms: Bosentan metabolite Ro 48-5033
![[metabolites] Desmethyl Bosentan](https://www.alsachim.com/18967-list_image/Desmethyl-Bosentan.jpg)
Desmethyl Bosentan
Product Number: C5474
CAS number: 253688-61-8
Synonyms: Bosentan metabolite Ro 47-8634
![[reference-standards] Bosentan](https://www.alsachim.com/17574-list_image/Bosentan.jpg)
![[reference-standards] Atropine](https://www.alsachim.com/15233-list_image/Atropine.jpg)
![[reference-standards] Pimobendan](https://www.alsachim.com/16293-list_image/Pimobendan.jpg)
![[reference-standards] Mitiglinide](https://www.alsachim.com/17538-list_image/Mitiglinide.jpg)
![[reference-standards] Eledoisin acetate salt](https://www.alsachim.com/20153-list_image/Eledoisin-acetate-salt.jpg)
![[reference-standards] Nafronyl](https://www.alsachim.com/20044-list_image/Nafronyl.jpg)
![[metabolites] 3,4-Dehydro-Cilostazol](https://www.alsachim.com/19937-list_image/3-4-Dehydro-Cilostazol.jpg)
![[reference-standards] Vincamine](https://www.alsachim.com/19728-list_image/Vincamine.jpg)
![[metabolites] 5-Methylurapidil](https://www.alsachim.com/19633-list_image/5-Methylurapidil.jpg)
5-Methylurapidil
Product Number: C6736
CAS number: 34661-85-3
Synonyms: 5-Methyl-6[[3-[4-(2-methoxyphenyl)-1-piperazinyl]propyl]amino]-1,3-dimethyluracil