![[reference-standards] 7-(-β-Hydroxyethyl)theophylline](https://www.alsachim.com/20114-list_image/7--beta-Hydroxyethyl-theophylline.jpg)
7-(-β-Hydroxyethyl)theophylline
Product Number: C8001
CAS number: 519-37-9
Synonyms: 7-(-beta-Hydroxyethyl)theophylline
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.
20 products
![[reference-standards] Tropatepine](https://www.alsachim.com/20252-list_image/Tropatepine.jpg)
![[reference-standards] Atropine](https://www.alsachim.com/15233-list_image/Atropine.jpg)
![[reference-standards] Isoliquiritigenin](https://www.alsachim.com/20161-list_image/Isoliquiritigenin.jpg)
Isoliquiritigenin
Product Number: C6247
CAS number: 961-29-5
Synonyms: (E)-1-(2,4-Dihydroxyphenyl)-3-(4-hydroxyphenyl)prop-2-en-1-one
![[reference-standards] ADBICA](https://www.alsachim.com/19948-list_image/ADBICA.jpg)
![[metabolites] 5-Hydroxypentyl-ADBICA](https://www.alsachim.com/19949-list_image/5-Hydroxypentyl-ADBICA.jpg)
![[reference-standards] Thymol sulfate ammonium salt](https://www.alsachim.com/19850-list_image/Thymol-sulfate-ammonium-salt.jpg)
![[reference-standards] BB-22](https://www.alsachim.com/19682-list_image/BB-22.jpg)
![[reference-standards] BML 190](https://www.alsachim.com/19134-list_image/BML-190.jpg)
![[reference-standards] AM694](https://www.alsachim.com/18909-list_image/AM694.jpg)
![[reference-standards] Myricetin](https://www.alsachim.com/17879-list_image/Myricetin.jpg)
![[reference-standards] 5-Hydroxymethylfurfuraldehyde](https://www.alsachim.com/17740-list_image/5-Hydroxymethylfurfuraldehyde.jpg)
![[metabolites] BB-22 3-carboxyindole metabolite](https://www.alsachim.com/17186-list_image/BB-22-3-carboxyindole-metabolite.jpg)
![[reference-standards] Biperiden hydrochloride salt](https://www.alsachim.com/16648-list_image/Biperiden-hydrochloride-salt.jpg)
Biperiden hydrochloride salt
Product Number: C5428
CAS number: 1235-82-1
Synonyms: Akinophyl, Akineton
![[metabolites] 7-Hydroxycoumarin sulfate ammonium salt](https://www.alsachim.com/16577-list_image/7-Hydroxycoumarin-sulfate-ammonium-salt.jpg)
![[metabolites] L-Carnitine inner salt](https://www.alsachim.com/16369-list_image/L-Carnitine-inner-salt.jpg)
![[metabolites] 7-Hydroxycoumarin-β-D-glucuronide](https://www.alsachim.com/17507-list_image/7-Hydroxycoumarin-beta-D-glucuronide.jpg)
7-Hydroxycoumarin-β-D-glucuronide
Product Number: C4521
CAS number: 66695-14-5
Synonyms: 7-Hydroxycoumarin-beta-D-glucuronide
![[metabolites] 7-Hydroxycoumarin](https://www.alsachim.com/15681-list_image/7-Hydroxycoumarin.jpg)
7-Hydroxycoumarin
Product Number: C3351
CAS number: 93-35-6
Synonyms: Phase I metabolite of coumarin (CYP2A6), P450 (CYP) metabolite
![[metabolites] trans-Caffeoyl-L-tryptophan-methylester](https://www.alsachim.com/15306-list_image/trans-Caffeoyl-L-tryptophan-methylester.jpg)
trans-Caffeoyl-L-tryptophan-methylester
Product Number: C2252
CAS number: N/A
Synonyms: (S,E)-Methyl 2-(3-(3,4-dihydroxyphenyl)acrylamido)-3-(1H-indol-3-yl)propanoate
![[reference-standards] trans-Caffeoyl-L-tryptophan sodium salt](https://www.alsachim.com/15282-list_image/trans-Caffeoyl-L-tryptophan-sodium-salt.jpg)