877764-42-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 877764-42-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,7,7,7,6 and 4 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 877764-42:
(8*8)+(7*7)+(6*7)+(5*7)+(4*6)+(3*4)+(2*4)+(1*2)=236
236 % 10 = 6
So 877764-42-6 is a valid CAS Registry Number.