183507-83-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 183507-83-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,3,5,0 and 7 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 183507-83:
(8*1)+(7*8)+(6*3)+(5*5)+(4*0)+(3*7)+(2*8)+(1*3)=147
147 % 10 = 7
So 183507-83-7 is a valid CAS Registry Number.