664970-41-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 664970-41-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,6,4,9,7 and 0 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 664970-41:
(8*6)+(7*6)+(6*4)+(5*9)+(4*7)+(3*0)+(2*4)+(1*1)=196
196 % 10 = 6
So 664970-41-6 is a valid CAS Registry Number.