40228-41-9 Usage
Uses
Used in Pharmaceutical Industry:
17-DibroMoMethylaceto-19-Nnorpregn-4-ene-3,20-dione is used as an intermediate in the synthesis of Norethindrone Acetate (N675990), which is an important impurity in the production of this medication. Its role in the synthesis process is crucial for the development of the final pharmaceutical product, ensuring the quality and efficacy of the drug.
Check Digit Verification of cas no
The CAS Registry Mumber 40228-41-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,2,2 and 8 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 40228-41:
(7*4)+(6*0)+(5*2)+(4*2)+(3*8)+(2*4)+(1*1)=79
79 % 10 = 9
So 40228-41-9 is a valid CAS Registry Number.
40228-41-9Relevant academic research and scientific papers
Steroids 51. An improved synthesis of ORG 2058 and the synthesis of [3H]ORG 2058
Bakos, Tamas,Lokoes, Magdalena,Vincze, Iren,Volford, Janos
, p. 115 - 118 (2007/10/02)
16α-Ethyl-21-hydroxy-19-norpregn-4-ene-3,20-dione (ORG 2058) is a ligand widely used in progesterone receptor assays. An improved synthesis of the compound is reported, starting from norethisterone acetate. The preparation of the tritiated radioligand [3H]ORG 2058 is also described. (Steroids 58:115-118, 1993).
