1142202-54-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1142202-54-7 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 2 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1142202-54:
(9*1)+(8*1)+(7*4)+(6*2)+(5*2)+(4*0)+(3*2)+(2*5)+(1*4)=87
87 % 10 = 7
So 1142202-54-7 is a valid CAS Registry Number.