1021042-07-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1021042-07-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,2,1,0,4 and 2 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1021042-07:
(9*1)+(8*0)+(7*2)+(6*1)+(5*0)+(4*4)+(3*2)+(2*0)+(1*7)=58
58 % 10 = 8
So 1021042-07-8 is a valid CAS Registry Number.