42756-01-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 42756-01-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,7,5 and 6 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 42756-01:
(7*4)+(6*2)+(5*7)+(4*5)+(3*6)+(2*0)+(1*1)=114
114 % 10 = 4
So 42756-01-4 is a valid CAS Registry Number.