1341221-81-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1341221-81-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,4,1,2,2 and 1 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1341221-81:
(9*1)+(8*3)+(7*4)+(6*1)+(5*2)+(4*2)+(3*1)+(2*8)+(1*1)=105
105 % 10 = 5
So 1341221-81-5 is a valid CAS Registry Number.