76993-57-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 76993-57-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,6,9,9 and 3 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 76993-57:
(7*7)+(6*6)+(5*9)+(4*9)+(3*3)+(2*5)+(1*7)=192
192 % 10 = 2
So 76993-57-2 is a valid CAS Registry Number.