861788-54-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 861788-54-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,6,1,7,8 and 8 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 861788-54:
(8*8)+(7*6)+(6*1)+(5*7)+(4*8)+(3*8)+(2*5)+(1*4)=217
217 % 10 = 7
So 861788-54-7 is a valid CAS Registry Number.