340970-54-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 340970-54-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,4,0,9,7 and 0 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 340970-54:
(8*3)+(7*4)+(6*0)+(5*9)+(4*7)+(3*0)+(2*5)+(1*4)=139
139 % 10 = 9
So 340970-54-9 is a valid CAS Registry Number.