1644599-68-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1644599-68-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,4,4,5,9 and 9 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1644599-68:
(9*1)+(8*6)+(7*4)+(6*4)+(5*5)+(4*9)+(3*9)+(2*6)+(1*8)=217
217 % 10 = 7
So 1644599-68-7 is a valid CAS Registry Number.