637031-99-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 637031-99-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,3,7,0,3 and 1 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 637031-99:
(8*6)+(7*3)+(6*7)+(5*0)+(4*3)+(3*1)+(2*9)+(1*9)=153
153 % 10 = 3
So 637031-99-3 is a valid CAS Registry Number.