42770-62-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 42770-62-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,7,7 and 0 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 42770-62:
(7*4)+(6*2)+(5*7)+(4*7)+(3*0)+(2*6)+(1*2)=117
117 % 10 = 7
So 42770-62-7 is a valid CAS Registry Number.