956242-20-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 956242-20-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,5,6,2,4 and 2 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 956242-20:
(8*9)+(7*5)+(6*6)+(5*2)+(4*4)+(3*2)+(2*2)+(1*0)=179
179 % 10 = 9
So 956242-20-9 is a valid CAS Registry Number.