1687752-52-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1687752-52-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,8,7,7,5 and 2 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1687752-52:
(9*1)+(8*6)+(7*8)+(6*7)+(5*7)+(4*5)+(3*2)+(2*5)+(1*2)=228
228 % 10 = 8
So 1687752-52-8 is a valid CAS Registry Number.