1307900-67-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1307900-67-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,0,7,9,0 and 0 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1307900-67:
(9*1)+(8*3)+(7*0)+(6*7)+(5*9)+(4*0)+(3*0)+(2*6)+(1*7)=139
139 % 10 = 9
So 1307900-67-9 is a valid CAS Registry Number.