1638241-89-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1638241-89-0 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,3,8,2,4 and 1 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1638241-89:
(9*1)+(8*6)+(7*3)+(6*8)+(5*2)+(4*4)+(3*1)+(2*8)+(1*9)=180
180 % 10 = 0
So 1638241-89-0 is a valid CAS Registry Number.