341990-42-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 341990-42-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,4,1,9,9 and 0 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 341990-42:
(8*3)+(7*4)+(6*1)+(5*9)+(4*9)+(3*0)+(2*4)+(1*2)=149
149 % 10 = 9
So 341990-42-9 is a valid CAS Registry Number.