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.
27 products
![[reference-standards] Ipratropium bromide salt](https://www.alsachim.com/20714-list_image/Ipratropium-bromide-salt.jpg)
![[metabolites] Salbutamol 4-O-sulfate](https://www.alsachim.com/17634-list_image/Salbutamol-4-O-sulfate.jpg)
![[reference-standards] Tiotropium bromide salt](https://www.alsachim.com/17642-list_image/Tiotropium-bromide-salt.jpg)
![[reference-standards] Thiothixene](https://www.alsachim.com/19853-list_image/Thiothixene.jpg)
![[metabolites] Erdosteine Metabolite 1 disodium salt](https://www.alsachim.com/19784-list_image/Erdosteine-Metabolite-1-disodium-salt.jpg)
![[reference-standards] Triflumuron](https://www.alsachim.com/19759-list_image/Triflumuron.jpg)
![[reference-standards] Erdosteine](https://www.alsachim.com/19749-list_image/Erdosteine.jpg)
![[metabolites] Erdosteine Metabolite 1](https://www.alsachim.com/19750-list_image/Erdosteine-Metabolite-1.jpg)
![[reference-standards] Fenspiride hydrochloride salt](https://www.alsachim.com/18837-list_image/Fenspiride-hydrochloride-salt.jpg)
![[reference-standards] Aclidinium bromide](https://www.alsachim.com/18348-list_image/Aclidinium-bromide.jpg)
![[reference-standards] Lufenuron](https://www.alsachim.com/18192-list_image/Lufenuron.jpg)
![[metabolites] Terbutaline O-sulfate](https://www.alsachim.com/17393-list_image/Terbutaline-O-sulfate.jpg)
![[reference-standards] Zuclopenthixol dihydrochloride salt](https://www.alsachim.com/16839-list_image/Zuclopenthixol-dihydrochloride-salt.jpg)
![[reference-standards] Terbutaline hemisulfate salt](https://www.alsachim.com/16633-list_image/Terbutaline-hemisulfate-salt.jpg)
![[reference-standards] Phenytoin](https://www.alsachim.com/16263-list_image/Phenytoin.jpg)
![[reference-standards] Bamifyllin](https://www.alsachim.com/15807-list_image/Bamifyllin.jpg)
![[reference-standards] Diprophylline](https://www.alsachim.com/15806-list_image/Diprophylline.jpg)
![[reference-standards] Formoterol hemifumarate
salt monohydrate](https://www.alsachim.com/15739-list_image/Formoterol-hemifumarate-salt-monohydrate.jpg)
![[reference-standards] Salmeterol xinafoate
salt](https://www.alsachim.com/15732-list_image/Salmeterol-xinafoate-salt.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