1023930-69-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1023930-69-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,2,3,9,3 and 0 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1023930-69:
(9*1)+(8*0)+(7*2)+(6*3)+(5*9)+(4*3)+(3*0)+(2*6)+(1*9)=119
119 % 10 = 9
So 1023930-69-9 is a valid CAS Registry Number.