![[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.
22 products
![[reference-standards] Doravirine](https://www.alsachim.com/16797-list_image/Doravirine.jpg)
![[reference-standards] Delavirdine](https://www.alsachim.com/15906-list_image/Delavirdine.jpg)
![[reference-standards] Efavirenz, racemic mixture](https://www.alsachim.com/14817-list_image/Efavirenz-racemic-mixture.jpg)
![[reference-standards] (S)-(+)-Efavirenz](https://www.alsachim.com/15628-list_image/-S---Efavirenz.jpg)
![[reference-standards] Rilpivirine](https://www.alsachim.com/15407-list_image/Rilpivirine.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
![[metabolites] 8-Hydroxyefavirenz](https://www.alsachim.com/20132-list_image/8-Hydroxyefavirenz.jpg)
8-Hydroxyefavirenz
Product Number: C958
CAS number: 205754-33-2
Synonyms: P450 (CYP) metabolite, Phase I metabolite of efavirenz, CYP2B6 reference metabolite
![[reference-standards] Thiothixene](https://www.alsachim.com/19853-list_image/Thiothixene.jpg)
![[reference-standards] Thymol sulfate ammonium salt](https://www.alsachim.com/19850-list_image/Thymol-sulfate-ammonium-salt.jpg)
![[reference-standards] Dapivirine](https://www.alsachim.com/18950-list_image/Dapivirine.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)
![[reference-standards] Zuclopenthixol dihydrochloride salt](https://www.alsachim.com/16839-list_image/Zuclopenthixol-dihydrochloride-salt.jpg)
![[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
![[reference-standards] Etravirine](https://www.alsachim.com/15339-list_image/Etravirine.jpg)
Etravirine
Product Number: C2354
CAS number: 269055-15-4
Synonyms: 4-[[6-Amino-5-bromo-2-[(4-cyanophenyl)amino]-4-pyrimidinyl]oxy]-3,5-dimethyl-benzonitrile
![[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