157728-63-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 157728-63-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,7,2 and 8 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 157728-63:
(8*1)+(7*5)+(6*7)+(5*7)+(4*2)+(3*8)+(2*6)+(1*3)=167
167 % 10 = 7
So 157728-63-7 is a valid CAS Registry Number.