6738-09-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 6738-09-6 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,7,3 and 8 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 6738-09:
(6*6)+(5*7)+(4*3)+(3*8)+(2*0)+(1*9)=116
116 % 10 = 6
So 6738-09-6 is a valid CAS Registry Number.