3974-33-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 3974-33-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,9,7 and 4 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 3974-33:
(6*3)+(5*9)+(4*7)+(3*4)+(2*3)+(1*3)=112
112 % 10 = 2
So 3974-33-2 is a valid CAS Registry Number.