1561215-69-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1561215-69-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,5,6,1,2,1 and 5 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1561215-69:
(9*1)+(8*5)+(7*6)+(6*1)+(5*2)+(4*1)+(3*5)+(2*6)+(1*9)=147
147 % 10 = 7
So 1561215-69-7 is a valid CAS Registry Number.