637302-20-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 637302-20-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,3,7,3,0 and 2 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 637302-20:
(8*6)+(7*3)+(6*7)+(5*3)+(4*0)+(3*2)+(2*2)+(1*0)=136
136 % 10 = 6
So 637302-20-6 is a valid CAS Registry Number.