1026172-67-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1026172-67-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,2,6,1,7 and 2 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1026172-67:
(9*1)+(8*0)+(7*2)+(6*6)+(5*1)+(4*7)+(3*2)+(2*6)+(1*7)=117
117 % 10 = 7
So 1026172-67-7 is a valid CAS Registry Number.