429691-42-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 429691-42-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,2,9,6,9 and 1 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 429691-42:
(8*4)+(7*2)+(6*9)+(5*6)+(4*9)+(3*1)+(2*4)+(1*2)=179
179 % 10 = 9
So 429691-42-9 is a valid CAS Registry Number.