83347-19-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 83347-19-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,3,4 and 7 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 83347-19:
(7*8)+(6*3)+(5*3)+(4*4)+(3*7)+(2*1)+(1*9)=137
137 % 10 = 7
So 83347-19-7 is a valid CAS Registry Number.