156400-55-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 156400-55-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,6,4,0 and 0 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 156400-55:
(8*1)+(7*5)+(6*6)+(5*4)+(4*0)+(3*0)+(2*5)+(1*5)=114
114 % 10 = 4
So 156400-55-4 is a valid CAS Registry Number.