Description

Pyridiniumdichromate CAS NO 20039-14-9 is an organic salt of chromium(VI), widely recognized as a versatile and selective oxidizing agent in organic synthesis. Its primary commercial value lies in its ability to efficiently oxidize primary and secondary alcohols to aldehydes and ketones under mild conditions, often with superior selectivity compared to other chromium-based reagents. This compound is particularly valuable for research and development chemists, process engineers, and manufacturers in the pharmaceutical, agrochemical, and fine chemical industries who require reliable and controlled oxidation steps in complex molecule synthesis.

Application

• Selective oxidation of primary alcohols to aldehydes without over-oxidation to carboxylic acids.
• Oxidation of secondary alcohols to ketones in complex pharmaceutical intermediates.
• A key reagent in the synthesis of fragrances, flavors, and other fine chemicals requiring specific carbonyl functionalities.
• Use in laboratory-scale research for developing new synthetic pathways and methodologies.
• Oxidation step in the production of certain agrochemical active ingredients.
• Potential use in the controlled oxidation of specific polymers or specialty materials.

Basic Information

Product Name	Pyridiniumdichromate
CAS No.	20039-14-9
Molecular Formula	C5H5NH·Cr2O7
Molecular Weight	376.20 g/mol
Synonyms	Pyridinium Dichromate; PDC; Collins Reagent (related but distinct); Pyridinium Bichromate; Pyridinium Hydrogendichromate; Pyridinium Chromate(VI); Pyridinium Chromate Dimer; (Pyridinium)2Cr2O7
EINECS	Contact for details

Quality Control

Our Pyridiniumdichromate is produced under stringent quality management protocols to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including assay, identification, and impurity profiling. A Certificate of Analysis (COA) detailing all test results is provided with every shipment, ensuring full traceability and compliance with your internal quality standards and regulatory requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as reducing agents, organic materials, and strong acids. Recommended storage temperature is 15-25°C. Due to its oxidizing nature, ensure proper segregation from flammable substances.

Specification

Item	Specification
Appearance	Orange to orange-red crystalline powder
Identification (IR)	Conforms to structure
Assay (Titration)	≥ 98.0%
Chromium Content	Contact for details
Loss on Drying	≤ 1.0%
Solubility	Soluble in polar organic solvents (e.g., DMF, DMSO)

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