1383781-83-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1383781-83-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,8,3,7,8 and 1 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1383781-83:
(9*1)+(8*3)+(7*8)+(6*3)+(5*7)+(4*8)+(3*1)+(2*8)+(1*3)=196
196 % 10 = 6
So 1383781-83-6 is a valid CAS Registry Number.
1383781-83-6Relevant articles and documents
Processes for the preparation of 5-chloro-2-methyl-2,3,3a,12b-tetrahydro-1H-dibenzo[2,3:6,7]oxepino[4,5-c]pyrrole
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, (2012/07/03)
This invention provides improved processes for the preparation of 5-chloro-2-methyl-2,3,3a,12b-tetrahydro-1H-dibenzo[2,3:6,7]oxepino[4,5-c]pyrrole, asenapine. These processes allow the preparation of asenapine at industrial scale in good yields and high stereoselectivity.