71566-76-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 71566-76-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,5,6 and 6 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 71566-76:
(7*7)+(6*1)+(5*5)+(4*6)+(3*6)+(2*7)+(1*6)=142
142 % 10 = 2
So 71566-76-2 is a valid CAS Registry Number.
InChI:InChI=1/C22H21N3O/c1-4-23-19-13-22-20(11-15(19)3)25-18-10-9-16(12-21(18)26-22)24-17-8-6-5-7-14(17)2/h5-13,24H,4H2,1-3H3/b23-19+