102193-41-9 Usage
Uses
Dimethoxy Dienogest is an impurity of Dienogest (D441870), a derivative of 19-Nortestosterone (N315000) and an oral contraceptive used in combination with estrogen.
Check Digit Verification of cas no
The CAS Registry Mumber 102193-41-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,2,1,9 and 3 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 102193-41:
(8*1)+(7*0)+(6*2)+(5*1)+(4*9)+(3*3)+(2*4)+(1*1)=79
79 % 10 = 9
So 102193-41-9 is a valid CAS Registry Number.
102193-41-9Relevant articles and documents
PROCESS FOR THE PREPARATION OF DIENOGEST SUBSTANTIALLY FREE OF IMPURITIES
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Paragraph 0039, (2013/03/26)
The present invention provides novel process for preparation and purification of dienogest (I). The present invention provides dienogest (I) substantially free of impurities.