123872-97-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 123872-97-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,3,8,7 and 2 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 123872-97:
(8*1)+(7*2)+(6*3)+(5*8)+(4*7)+(3*2)+(2*9)+(1*7)=139
139 % 10 = 9
So 123872-97-9 is a valid CAS Registry Number.