21849-92-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 21849-92-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,8,4 and 9 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 21849-92:
(7*2)+(6*1)+(5*8)+(4*4)+(3*9)+(2*9)+(1*2)=123
123 % 10 = 3
So 21849-92-3 is a valid CAS Registry Number.