105499-98-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 105499-98-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,5,4,9 and 9 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 105499-98:
(8*1)+(7*0)+(6*5)+(5*4)+(4*9)+(3*9)+(2*9)+(1*8)=147
147 % 10 = 7
So 105499-98-7 is a valid CAS Registry Number.