637352-57-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 637352-57-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,3,7,3,5 and 2 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 637352-57:
(8*6)+(7*3)+(6*7)+(5*3)+(4*5)+(3*2)+(2*5)+(1*7)=169
169 % 10 = 9
So 637352-57-9 is a valid CAS Registry Number.