90640-80-5 Usage
Flammability and Explosibility
Notclassified
Check Digit Verification of cas no
The CAS Registry Mumber 90640-80-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,6,4 and 0 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 90640-80:
(7*9)+(6*0)+(5*6)+(4*4)+(3*0)+(2*8)+(1*0)=125
125 % 10 = 5
So 90640-80-5 is a valid CAS Registry Number.