877778-47-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 877778-47-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,7,7,7,7 and 8 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 877778-47:
(8*8)+(7*7)+(6*7)+(5*7)+(4*7)+(3*8)+(2*4)+(1*7)=257
257 % 10 = 7
So 877778-47-7 is a valid CAS Registry Number.