1021867-45-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1021867-45-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,2,1,8,6 and 7 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1021867-45:
(9*1)+(8*0)+(7*2)+(6*1)+(5*8)+(4*6)+(3*7)+(2*4)+(1*5)=127
127 % 10 = 7
So 1021867-45-7 is a valid CAS Registry Number.