1309779-49-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1309779-49-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,0,9,7,7 and 9 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1309779-49:
(9*1)+(8*3)+(7*0)+(6*9)+(5*7)+(4*7)+(3*9)+(2*4)+(1*9)=194
194 % 10 = 4
So 1309779-49-4 is a valid CAS Registry Number.