277302-47-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 277302-47-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,7,7,3,0 and 2 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 277302-47:
(8*2)+(7*7)+(6*7)+(5*3)+(4*0)+(3*2)+(2*4)+(1*7)=143
143 % 10 = 3
So 277302-47-3 is a valid CAS Registry Number.