1023843-27-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1023843-27-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,2,3,8,4 and 3 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1023843-27:
(9*1)+(8*0)+(7*2)+(6*3)+(5*8)+(4*4)+(3*3)+(2*2)+(1*7)=117
117 % 10 = 7
So 1023843-27-7 is a valid CAS Registry Number.