1353971-91-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1353971-91-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,5,3,9,7 and 1 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1353971-91:
(9*1)+(8*3)+(7*5)+(6*3)+(5*9)+(4*7)+(3*1)+(2*9)+(1*1)=181
181 % 10 = 1
So 1353971-91-1 is a valid CAS Registry Number.