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.
91 products
![[reference-standards] Estradiol undecanoate](https://www.alsachim.com/18775-list_image/Estradiol-undecanoate.jpg)
![[reference-standards] Allopregnanolone](https://www.alsachim.com/18721-list_image/Allopregnanolone.jpg)
![[reference-standards] 5-alpha-Pregnane-3,20-dione](https://www.alsachim.com/18720-list_image/5-alpha-Pregnane-3-20-dione.jpg)
![[reference-standards] Isopregnolone](https://www.alsachim.com/18719-list_image/Isopregnolone.jpg)
![[reference-standards] L-Thyroxine sulfate salt](https://www.alsachim.com/18661-list_image/L-Thyroxine-sulfate-salt.jpg)
L-Thyroxine sulfate salt
Product Number: C4785
CAS number: 77074-49-8
Synonyms: Tetra-iodothyronine sulfate
![[reference-standards] L-(3,3',5)-Triiodo-thyronine sulfate](https://www.alsachim.com/18659-list_image/L-3-3-5-Triiodo-thyronine-sulfate.jpg)
L-(3,3',5)-Triiodo-thyronine sulfate
Product Number: C4783
CAS number: 31135-55-4
Synonyms: L-T3 sulfate
![[reference-standards] L-(3.5)-Diiodo-thyronine](https://www.alsachim.com/18655-list_image/L-35-Diiodo-thyronine.jpg)
![[reference-standards] 5-α-Dihydrotestosterone undecanoate](https://www.alsachim.com/18647-list_image/5-alpha-Dihydrotestosterone-undecanoate.jpg)
5-α-Dihydrotestosterone undecanoate
Product Number: C4756
CAS number: 6804-12-2
Synonyms: 5-a-Dihydrotestosterone undecanoate
![[reference-standards] 17a-Hydroxyprogesterone Caproate](https://www.alsachim.com/18617-list_image/17a-Hydroxyprogesterone-Caproate.jpg)
![[reference-standards] Etonogestrel](https://www.alsachim.com/18525-list_image/Etonogestrel.jpg)
Etonogestrel
Product Number: C4257
CAS number: 54048-10-1
Synonyms: 3-Ketodesogestrel, 3-Oxodesogestrel
![[reference-standards] Melatonin](https://www.alsachim.com/18234-list_image/Melatonin.jpg)
![[reference-standards] 2-Methoxy-17-β-estradiol](https://www.alsachim.com/17920-list_image/2-Methoxy-17-beta-estradiol.jpg)
2-Methoxy-17-β-estradiol
Product Number: C2926
CAS number: 362-07-2
Synonyms: 2-Methoxy-17-beta-estradiol
![[metabolites] 4-Hydroxy-17-β-estradiol](https://www.alsachim.com/17924-list_image/4-Hydroxy-17-beta-estradiol.jpg)
4-Hydroxy-17-β-estradiol
Product Number: C2930
CAS number: 5976-61-4
Synonyms: 4-Hydroxy-17-beta-estradiol
![[metabolites] 16-Epiestriol](https://www.alsachim.com/17928-list_image/16-Epiestriol.jpg)
16-Epiestriol
Product Number: C2938
CAS number: 547-81-9
Synonyms: 16ß-17ß-Estriol, 16ß-Hydroxyestradiol
![[metabolites] 2-Hydroxyestrone](https://www.alsachim.com/17931-list_image/2-Hydroxyestrone.jpg)
![[metabolites] 2-Methoxyestrone](https://www.alsachim.com/17933-list_image/2-Methoxyestrone.jpg)
![[metabolites] 4-Hydroxyestrone](https://www.alsachim.com/17935-list_image/4-Hydroxyestrone.jpg)
![[metabolites] 4-Methoxyestrone](https://www.alsachim.com/17937-list_image/4-Methoxyestrone.jpg)
![[metabolites] 16-α-Hydroxyestrone](https://www.alsachim.com/17939-list_image/16-alpha-Hydroxyestrone.jpg)
![[reference-standards] 2-Hydroxy-17-β-estradiol](https://www.alsachim.com/17918-list_image/2-Hydroxy-17-beta-estradiol.jpg)
2-Hydroxy-17-β-estradiol
Product Number: C2924
CAS number: 362-05-0
Synonyms: 2-Hydroxy-17-beta-estradiol