3954-67-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 3954-67-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,9,5 and 4 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 3954-67:
(6*3)+(5*9)+(4*5)+(3*4)+(2*6)+(1*7)=114
114 % 10 = 4
So 3954-67-4 is a valid CAS Registry Number.