887866-81-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 887866-81-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,8,7,8,6 and 6 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 887866-81:
(8*8)+(7*8)+(6*7)+(5*8)+(4*6)+(3*6)+(2*8)+(1*1)=261
261 % 10 = 1
So 887866-81-1 is a valid CAS Registry Number.