647832-55-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 647832-55-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,4,7,8,3 and 2 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 647832-55:
(8*6)+(7*4)+(6*7)+(5*8)+(4*3)+(3*2)+(2*5)+(1*5)=191
191 % 10 = 1
So 647832-55-1 is a valid CAS Registry Number.