69780-61-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 69780-61-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,9,7,8 and 0 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 69780-61:
(7*6)+(6*9)+(5*7)+(4*8)+(3*0)+(2*6)+(1*1)=176
176 % 10 = 6
So 69780-61-6 is a valid CAS Registry Number.