649767-38-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 649767-38-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,4,9,7,6 and 7 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 649767-38:
(8*6)+(7*4)+(6*9)+(5*7)+(4*6)+(3*7)+(2*3)+(1*8)=224
224 % 10 = 4
So 649767-38-4 is a valid CAS Registry Number.