102990-46-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 102990-46-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,2,9,9 and 0 respectively; the second part has 2 digits, 4 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 102990-46:
(8*1)+(7*0)+(6*2)+(5*9)+(4*9)+(3*0)+(2*4)+(1*6)=115
115 % 10 = 5
So 102990-46-5 is a valid CAS Registry Number.