1577232-21-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1577232-21-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,5,7,7,2,3 and 2 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1577232-21:
(9*1)+(8*5)+(7*7)+(6*7)+(5*2)+(4*3)+(3*2)+(2*2)+(1*1)=173
173 % 10 = 3
So 1577232-21-3 is a valid CAS Registry Number.