CAS 18383-24-9

Betamethasone EP Impurity J

CAS: 18383-24-9

Formel: C₂₂H₃₀O₄

Farbe und Form: White To Off-White Solid

Molekulargewicht: 358.48

Ref: 4Z-B-065021

16β-Methyl-17α,21-Dihydroxypregna-1,4-diene-3,20-dione

CAS: 18383-24-9

Formel: C₂₂H₃₀O₄

Farbe und Form: Neat

Molekulargewicht: 358.471

Ref: TR-M302195

Betamethasone Impurity J EP

Kontrolliertes Produkt

CAS: 18383-24-9

Betamethasone impurity J EP is a pharmacopoeia impurity standard. It is the most potent and stable of the betamethasone metabolites, and it is used as a reference standard for HPLC methods.
Betamethasone impurity J EP was synthesized using an improved method that does not include boron trifluoride etherate in the final stage of the synthesis. This impurity has been shown to have an analytical retention time of 4.5 minutes on HPLC, which corresponds to its molecular weight of 353.4 daltons.

Formel: C₂₂H₃₀O₄

Reinheit: Min. 95%

Molekulargewicht: 358.5 g/mol

Ref: 3D-IB181288