105458-55-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 105458-55-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,5,4,5 and 8 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 105458-55:
(8*1)+(7*0)+(6*5)+(5*4)+(4*5)+(3*8)+(2*5)+(1*5)=117
117 % 10 = 7
So 105458-55-7 is a valid CAS Registry Number.