1142200-34-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1142200-34-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,4,2,2,0 and 0 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1142200-34:
(9*1)+(8*1)+(7*4)+(6*2)+(5*2)+(4*0)+(3*0)+(2*3)+(1*4)=77
77 % 10 = 7
So 1142200-34-7 is a valid CAS Registry Number.