1343494-42-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1343494-42-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,4,3,4,9 and 4 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1343494-42:
(9*1)+(8*3)+(7*4)+(6*3)+(5*4)+(4*9)+(3*4)+(2*4)+(1*2)=157
157 % 10 = 7
So 1343494-42-7 is a valid CAS Registry Number.