402755-29-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 402755-29-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,0,2,7,5 and 5 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 402755-29:
(8*4)+(7*0)+(6*2)+(5*7)+(4*5)+(3*5)+(2*2)+(1*9)=127
127 % 10 = 7
So 402755-29-7 is a valid CAS Registry Number.