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.
22 products
![[reference-standards] Thiothixene](https://www.alsachim.com/19853-list_image/Thiothixene.jpg)
![[reference-standards] Zuclopenthixol dihydrochloride salt](https://www.alsachim.com/16839-list_image/Zuclopenthixol-dihydrochloride-salt.jpg)
![[reference-standards] Bestatin](https://www.alsachim.com/16788-list_image/Bestatin.jpg)
![[reference-standards] Cobicistat](https://www.alsachim.com/16717-list_image/Cobicistat.jpg)
![[metabolites] Des-3-pyridylmethyl indinavir](https://www.alsachim.com/16546-list_image/Des-3-pyridylmethyl-indinavir.jpg)
![[reference-standards] Ritonavir A-86093 internal standard](https://www.alsachim.com/16507-list_image/Ritonavir-A-86093-internal-standard.jpg)
![[reference-standards] Diprophylline](https://www.alsachim.com/15806-list_image/Diprophylline.jpg)
![[reference-standards] Nelfinavir mesylate salt monohydrate](https://www.alsachim.com/15555-list_image/Nelfinavir-mesylate-salt-monohydrate.jpg)
![[reference-standards] Theophylline](https://www.alsachim.com/15483-list_image/Theophylline.jpg)
Theophylline
Product Number: C2812
CAS number: 58-55-9
Synonyms: 3,9-Dihydro-1,3-dimethyl-1H-purine-2,6-dione
![[reference-standards] Darunavir hemiethanolate
salt](https://www.alsachim.com/15459-list_image/Darunavir-hemiethanolate-salt.jpg)
![[metabolites] Lopinavir metabolite M-1](https://www.alsachim.com/15457-list_image/Lopinavir-metabolite-M-1.jpg)
![[metabolites] Lopinavir metabolite M-3/M-4](https://www.alsachim.com/15458-list_image/Lopinavir-metabolite-M-3-M-4.jpg)
![[reference-standards] Fosamprenavir calcium salt](https://www.alsachim.com/15376-list_image/Fosamprenavir-calcium-salt.jpg)
![[reference-standards] Darunavir](https://www.alsachim.com/15377-list_image/Darunavir.jpg)
![[reference-standards] Tipranavir](https://www.alsachim.com/15341-list_image/Tipranavir.jpg)
![[reference-standards] Atazanavir](https://www.alsachim.com/15139-list_image/Atazanavir.jpg)
![[reference-standards] Amprenavir](https://www.alsachim.com/14802-list_image/Amprenavir.jpg)
![[reference-standards] Saquinavir mesylate salt](https://www.alsachim.com/14799-list_image/Saquinavir-mesylate-salt.jpg)
![[reference-standards] Indinavir sulfate salt](https://www.alsachim.com/14798-list_image/Indinavir-sulfate-salt.jpg)
![[reference-standards] Ritonavir](https://www.alsachim.com/14797-list_image/Ritonavir.jpg)