Description

Uranyl Formate CAS NO 16984-59-1 is a uranium-containing salt of formic acid, primarily recognized for its role as a negative stain in transmission electron microscopy (TEM). This compound is critical for providing high-contrast, fine-grained images of biological specimens, enabling detailed ultrastructural analysis. It is an essential material for research laboratories, diagnostic facilities, and academic institutions engaged in life sciences, nanotechnology, and materials characterization.

Application

• Electron Microscopy Staining: Primary application as a high-resolution negative stain for visualizing viruses, proteins, liposomes, and other macromolecular complexes in TEM.
• Biological Research: Used in the preparation of samples for structural biology to study the architecture of cellular components and pathogens.
• Nanoparticle Characterization: Employed to stain and visualize the size, shape, and dispersion of synthetic nanoparticles and colloidal systems.
• Diagnostic Virology: Aids in the direct visualization and identification of viral particles from clinical or research samples.
• Quality Control in Pharma/Biotech: Used to analyze the morphology and aggregation state of protein-based therapeutics, vaccines, and drug delivery vehicles.
• Materials Science: Can be applied in the study of thin films and surface coatings at the nanoscale.

Basic Information

Product Name	Uranyl Formate
CAS No.	16984-59-1
Molecular Formula	UO2(HCOO)2•nH2O
Molecular Weight	Contact for details
Synonyms	Uranium Formate; Uranyl(VI) Formate; Uranium Dioxide Formate; Formic Acid, Uranium Salt; Uranium Oxido Formate; Uranium(VI) Diformate; TEM Stain UA; UA Stain
EINECS	Contact for details

Quality Control

Our Uranyl Formate is produced and handled under stringent quality protocols to ensure batch-to-batch consistency and performance for sensitive electron microscopy applications. Each lot is tested for critical parameters including purity, staining performance, and absence of interfering particulates. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to support your quality assurance and regulatory documentation.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed to prevent absorption of atmospheric moisture. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Yellow to yellow-green crystalline powder
Identification (IR)	Conforms
Assay (Uranyl Content)	≥ 98.0%
pH (Aqueous Solution)	3.0 - 4.5
Clarity of Solution	Clear
Heavy Metals (as Pb)	≤ 20 ppm
Staining Performance Test	Pass

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.