331869-71-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 331869-71-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,3,1,8,6 and 9 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 331869-71:
(8*3)+(7*3)+(6*1)+(5*8)+(4*6)+(3*9)+(2*7)+(1*1)=157
157 % 10 = 7
So 331869-71-7 is a valid CAS Registry Number.