947-13-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 947-13-7 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 9,4 and 7 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 947-13:
(5*9)+(4*4)+(3*7)+(2*1)+(1*3)=87
87 % 10 = 7
So 947-13-7 is a valid CAS Registry Number.