429641-89-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 429641-89-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,2,9,6,4 and 1 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 429641-89:
(8*4)+(7*2)+(6*9)+(5*6)+(4*4)+(3*1)+(2*8)+(1*9)=174
174 % 10 = 4
So 429641-89-4 is a valid CAS Registry Number.