337526-21-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 337526-21-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,3,7,5,2 and 6 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 337526-21:
(8*3)+(7*3)+(6*7)+(5*5)+(4*2)+(3*6)+(2*2)+(1*1)=143
143 % 10 = 3
So 337526-21-3 is a valid CAS Registry Number.