![[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.
96 products
![[reference-standards] Verapamil hydrochloride salt](https://www.alsachim.com/16307-list_image/Verapamil-hydrochloride-salt.jpg)
![[reference-standards] TPA 023B](https://www.alsachim.com/18975-list_image/TPA-023B.jpg)
![[reference-standards] TPA023B phosphoric acid salt](https://www.alsachim.com/20831-list_image/TPA023B-phosphoric-acid-salt.jpg)
![[metabolites] Norfenfluramine hydrochloride salt](https://www.alsachim.com/19709-list_image/Norfenfluramine-hydrochloride-salt.jpg)
Norfenfluramine hydrochloride salt
Product Number: C6989
CAS number: 673-18-7
Synonyms: Desethylfenfluramine hydrochloride
![[reference-standards] Fenfluramine](https://www.alsachim.com/19706-list_image/Fenfluramine.jpg)
![[metabolites] 2-Carboxy-1-methyl-ethylmercapturic acid](https://www.alsachim.com/20142-list_image/2-Carboxy-1-methyl-ethylmercapturic-acid.jpg)
2-Carboxy-1-methyl-ethylmercapturic acid
Product Number: C276
CAS number: 33164-65-7
Synonyms: CMEMA
![[reference-standards] Nimodipine](https://www.alsachim.com/18687-list_image/Nimodipine.jpg)
![[metabolites] Desmethylnorgalanthamine](https://www.alsachim.com/17621-list_image/Desmethylnorgalanthamine.jpg)
Desmethylnorgalanthamine
Product Number: C1502
CAS number: 164854-59-5
Synonyms: N,O-Didemethylgalanthamine
![[reference-standards] Caffeine](https://www.alsachim.com/14696-list_image/Caffeine.jpg)
![[metabolites] 4-(3-chlorophenyl)piperazine-N-oxide](https://www.alsachim.com/17590-list_image/4-3-chlorophenyl-piperazine-N-oxide.jpg)
![[metabolites] Ramelteon metabolite M-II](https://www.alsachim.com/17579-list_image/Ramelteon-metabolite-M-II.jpg)
![[reference-standards] Cyclobenzaprine hydrochloride salt](https://www.alsachim.com/17529-list_image/Cyclobenzaprine-hydrochloride-salt.jpg)
![[metabolites] Desmethylcyclobenzaprine hydrochloride salt](https://www.alsachim.com/17534-list_image/Desmethylcyclobenzaprine-hydrochloride-salt.jpg)
![[reference-standards] Morphinan](https://www.alsachim.com/18062-list_image/Morphinan.jpg)
![[reference-standards] Theobromine](https://www.alsachim.com/20173-list_image/Theobromine.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] 4-Fluoro-alpha-[1-(methylamino)ethyl]-benzenemethanol hydrochloride salt](https://www.alsachim.com/20135-list_image/4-Fluoro-alpha-1-methylamino-ethyl-benzenemethanol-hydrochloride-salt.jpg)
4-Fluoro-alpha-benzenemethanol hydrochloride salt
Product Number: C3890
CAS number: 322-25-8
Synonyms: p-fluoro-alpha-[1-(methylamino)ethyl]-benzyl alcohol hydrochloride
![[reference-standards] (R)-AMT](https://www.alsachim.com/20043-list_image/-R-AMT.jpg)
![[reference-standards] Nalmefene](https://www.alsachim.com/20006-list_image/Nalmefene.jpg)