1421375-76-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1421375-76-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,2,1,3,7 and 5 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1421375-76:
(9*1)+(8*4)+(7*2)+(6*1)+(5*3)+(4*7)+(3*5)+(2*7)+(1*6)=139
139 % 10 = 9
So 1421375-76-9 is a valid CAS Registry Number.