AVIDIN, CHICKEN EGG WHITE Grade:REAGENT GRADE CAS Number: 1405-69-2Synonym(s): None Molecular Weight: N/AMolecular Formula: N/A Storage Condition: FROZEN CodeSizePriceQuantity 0866-5MG A 66 kDa glycoprotein containing four identical subunits with high binding affinity for biotin. Stable over wide pH and temperature ranges. Used in detection and protein purification methods because it can bind one molecule of biotin with each subunit. The strong avidin-biotin interaction is often utilized in affinity chromatography, ELISA, immunohistochemistry and Western Blotting.