156764-53-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 156764-53-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,6,7,6 and 4 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 156764-53:
(8*1)+(7*5)+(6*6)+(5*7)+(4*6)+(3*4)+(2*5)+(1*3)=163
163 % 10 = 3
So 156764-53-3 is a valid CAS Registry Number.