1637401-49-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1637401-49-0 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,3,7,4,0 and 1 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1637401-49:
(9*1)+(8*6)+(7*3)+(6*7)+(5*4)+(4*0)+(3*1)+(2*4)+(1*9)=160
160 % 10 = 0
So 1637401-49-0 is a valid CAS Registry Number.