1290056-99-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1290056-99-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,9,0,0,5 and 6 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1290056-99:
(9*1)+(8*2)+(7*9)+(6*0)+(5*0)+(4*5)+(3*6)+(2*9)+(1*9)=153
153 % 10 = 3
So 1290056-99-3 is a valid CAS Registry Number.