21347-29-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 21347-29-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,3,4 and 7 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 21347-29:
(7*2)+(6*1)+(5*3)+(4*4)+(3*7)+(2*2)+(1*9)=85
85 % 10 = 5
So 21347-29-5 is a valid CAS Registry Number.