52867-21-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 52867-21-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,2,8,6 and 7 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 52867-21:
(7*5)+(6*2)+(5*8)+(4*6)+(3*7)+(2*2)+(1*1)=137
137 % 10 = 7
So 52867-21-7 is a valid CAS Registry Number.