306939-49-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 306939-49-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,0,6,9,3 and 9 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 306939-49:
(8*3)+(7*0)+(6*6)+(5*9)+(4*3)+(3*9)+(2*4)+(1*9)=161
161 % 10 = 1
So 306939-49-1 is a valid CAS Registry Number.