6929-57-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 6929-57-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,9,2 and 9 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 6929-57:
(6*6)+(5*9)+(4*2)+(3*9)+(2*5)+(1*7)=133
133 % 10 = 3
So 6929-57-3 is a valid CAS Registry Number.