69837-40-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 69837-40-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,9,8,3 and 7 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 69837-40:
(7*6)+(6*9)+(5*8)+(4*3)+(3*7)+(2*4)+(1*0)=177
177 % 10 = 7
So 69837-40-7 is a valid CAS Registry Number.