1307653-61-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1307653-61-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,0,7,6,5 and 3 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1307653-61:
(9*1)+(8*3)+(7*0)+(6*7)+(5*6)+(4*5)+(3*3)+(2*6)+(1*1)=147
147 % 10 = 7
So 1307653-61-7 is a valid CAS Registry Number.