1549834-56-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1549834-56-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,5,4,9,8,3 and 4 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1549834-56:
(9*1)+(8*5)+(7*4)+(6*9)+(5*8)+(4*3)+(3*4)+(2*5)+(1*6)=211
211 % 10 = 1
So 1549834-56-1 is a valid CAS Registry Number.