86981-05-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 86981-05-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,6,9,8 and 1 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 86981-05:
(7*8)+(6*6)+(5*9)+(4*8)+(3*1)+(2*0)+(1*5)=177
177 % 10 = 7
So 86981-05-7 is a valid CAS Registry Number.
86981-05-7Relevant articles and documents
A TOTAL SYNTHESIS OF Na-METHYL SECODINE
Rahman, Atta-ur,Sultana, Mumtaz,Hassan, Iltifat
, p. 1845 - 1848 (1983)
A short synthetic route to N-methyl secodine and its subsequent conversion to the carbazole derivative (11) via a postulated dehydrosecodine intermediate (9) is described.