183657-62-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 183657-62-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,3,6,5 and 7 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 183657-62:
(8*1)+(7*8)+(6*3)+(5*6)+(4*5)+(3*7)+(2*6)+(1*2)=167
167 % 10 = 7
So 183657-62-7 is a valid CAS Registry Number.