1245644-90-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1245644-90-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,4,5,6,4 and 4 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1245644-90:
(9*1)+(8*2)+(7*4)+(6*5)+(5*6)+(4*4)+(3*4)+(2*9)+(1*0)=159
159 % 10 = 9
So 1245644-90-9 is a valid CAS Registry Number.