402957-69-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 402957-69-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,0,2,9,5 and 7 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 402957-69:
(8*4)+(7*0)+(6*2)+(5*9)+(4*5)+(3*7)+(2*6)+(1*9)=151
151 % 10 = 1
So 402957-69-1 is a valid CAS Registry Number.