730962-28-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 730962-28-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,3,0,9,6 and 2 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 730962-28:
(8*7)+(7*3)+(6*0)+(5*9)+(4*6)+(3*2)+(2*2)+(1*8)=164
164 % 10 = 4
So 730962-28-4 is a valid CAS Registry Number.
730962-28-4Relevant articles and documents
METHOD FOR PREPARING 17 alpha-ACETOXY-11beta-(4-N,N-DIMETHYLAMINOPHENYL)-19-NORPREGNA-4,9-DIENE-3,20-DIONE, INTERMEDIATES THEREOF, AND METHODS FOR THE PREPARATION OF SUCH INTERMEDIATES
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Page 12-13, (2010/02/08)
Methods for the preparation of the 19-norprogesterone of formula I and its intermediates, in crystalline and amorphous forms.