4-Hydroxy-3-nitrophenylacetyl hapten is conjugated to OVAL (ovalbumin) protein through lysine by amide bonds.

4-Hydroxy-3-nitrophenylacetyl hapten is conjugated to LPS (Lipopolysaccharide) through lysine by amide bonds.

4-Hydroxy-3-nitrophenylacetyl hapten is conjugated to KLH (Keyhole Limpet Hemocyanin) lysine through amide bonds.

Erythromycin is an antibiotic useful for the treatment of a number of bacterial infections.

Florfenicol is a fluorinated synthetic analog of thiamphenicol, mainly used in veterinary medicine.

Flumequine is a synthetic fluoroquinolone antibiotic used to treat bacterial infections.

Folate, forms of which are known as folic acid and vitamin B9, is one of the B vitamins.

4-Hydroxy-3-nitrophenylacetyl hapten is conjugated to HSA (Human serum albumin) lysine through amide bonds.

4-Hydroxy-3-nitrophenylacetyl hapten is conjugated to HGG (Human gamma globulin) lysine by amide bonds.

4-Hydroxy-3-nitrophenylacetyl diaminohexane is conjugated to fluorescein via amide linkage.