1561772-33-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1561772-33-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,5,6,1,7,7 and 2 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1561772-33:
(9*1)+(8*5)+(7*6)+(6*1)+(5*7)+(4*7)+(3*2)+(2*3)+(1*3)=175
175 % 10 = 5
So 1561772-33-5 is a valid CAS Registry Number.