Sodium Azide for Interference Testing Catalog number: C2010434 Lot number: Batch Dependent Expiration Date: Batch dependent Amount: 1 mL Molecular Weight or Concentration: 20% (w/v) Supplied as: Solution (20%) Appearance: Clear Solution Applications: bacteriostatic preservative for biological samples. Sodium azide has been described to interfere with the testing of bilirubin and cholesterol. Storage: 2-8C Keywords: Hydrazoic acid sodium salt, NSC 3072, NaN3 Grade: Biotechnology grade. All solid components are highly pure (minimum 95%). All solutions are made with Type I ultrapure water (resistivity >18 MΩ-cm) and are filtered through 0.22 um. References Luginbühl M, Weinmann W, Al-Ahmad A. Introduction of sample tubes with sodium azide as a preservative for ethyl glucuronide in urine. Int J Legal Med. 2017 Sep;131(5):1283-1289.