156243-45-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 156243-45-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,6,2,4 and 3 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 156243-45:
(8*1)+(7*5)+(6*6)+(5*2)+(4*4)+(3*3)+(2*4)+(1*5)=127
127 % 10 = 7
So 156243-45-7 is a valid CAS Registry Number.