641595-83-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 641595-83-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,4,1,5,9 and 5 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 641595-83:
(8*6)+(7*4)+(6*1)+(5*5)+(4*9)+(3*5)+(2*8)+(1*3)=177
177 % 10 = 7
So 641595-83-7 is a valid CAS Registry Number.