71662-11-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 71662-11-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,6,6 and 2 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 71662-11:
(7*7)+(6*1)+(5*6)+(4*6)+(3*2)+(2*1)+(1*1)=118
118 % 10 = 8
So 71662-11-8 is a valid CAS Registry Number.
InChI:InChI=1/C13H16N4O6.C4H6O6/c18-13-16(14-7-10-1-2-12(22-10)17(19)20)9-11(23-13)8-15-3-5-21-6-4-15;5-1(3(7)8)2(6)4(9)10/h1-2,7,11H,3-6,8-9H2;1-2,5-6H,(H,7,8)(H,9,10)/b14-7+;/t11-;1-,2?/m11/s1