21849-94-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 21849-94-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,8,4 and 9 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 21849-94:
(7*2)+(6*1)+(5*8)+(4*4)+(3*9)+(2*9)+(1*4)=125
125 % 10 = 5
So 21849-94-5 is a valid CAS Registry Number.