600639-34-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 600639-34-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,0,0,6,3 and 9 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 600639-34:
(8*6)+(7*0)+(6*0)+(5*6)+(4*3)+(3*9)+(2*3)+(1*4)=127
127 % 10 = 7
So 600639-34-7 is a valid CAS Registry Number.