ChemicalBook > Product Catalog >Organic Chemistry >Organometallic compounds >Organic scandium, tantalum, tungsten >Pyridinium dichromate
Pyridinium dichromate
- CAS No.
- 20039-37-6
- Chemical Name:
- Pyridinium dichromate
- Synonyms
- PDC;Escat? 11;Escat? 103;Cat.20569-9;C5H5NH+)2Cr2O72-;Cornforth reagent;PYRIDINE DICHROMATE;PYRIDINIUM DICHROMATE;PyridiniumDichromate>PyridiniuM dichroMate 98%
- CBNumber:
- CB4390259
- Molecular Formula:
- C5H7Cr2NO7
- Molecular Weight:
- 297.1
- MOL File:
- 20039-37-6.mol
- Modify Date:
- 2024/12/18 14:08:52
| Melting point | 152-153 °C(lit.) |
|---|---|
| Density | 1.71[at 20℃] |
| vapor pressure | 0Pa at 25℃ |
| storage temp. | Inert atmosphere,Room Temperature |
| solubility | soluble in DMSO |
| form | Crystalline Powder |
| color | Orange to brown |
| Water Solubility | soluble |
| Sensitive | Hygroscopic |
| Exposure limits |
OSHA: Ceiling 0.1 mg/m3 NIOSH: IDLH 15 mg/m3; TWA 0.0002 mg/m3 |
| InChIKey | BNSOYWDFFBDEFB-UHFFFAOYSA-L |
| LogP | -3.7 at 20℃ |
| CAS DataBase Reference | 20039-37-6(CAS DataBase Reference) |
| EPA Substance Registry System | Chromic acid (H2Cr2O7), compd. with pyridine (1:2) (20039-37-6) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |       GHS02,GHS03,GHS05,GHS07,GHS08,GHS09 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| Hazard statements | H228-H272-H314-H317-H350i-H410 | |||||||||
| Precautionary statements | P210-P260-P280-P303+P361+P353-P304+P340+P310-P305+P351+P338 | |||||||||
| Hazard Codes | O,T,N,Xn,F,Xi | |||||||||
| Risk Statements | 49-8-43-50/53-61-60-46-45-20/21/22-40-36/37/38-34-11 | |||||||||
| Safety Statements | 53-45-60-61-37-29-24-17-36/37/39-27-22-26 | |||||||||
| RIDADR | UN 1479 5.1/PG 2 | |||||||||
| WGK Germany | 2 | |||||||||
| F | 3 | |||||||||
| TSCA | Yes | |||||||||
| HazardClass | 5.1 | |||||||||
| PackingGroup | II | |||||||||
| HS Code | 29333100 | |||||||||
| NFPA 704 |
|
Pyridinium dichromate price More Price(13)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich(India) | 214698 | Pyridinium dichromate 98% | 20039-37-6 | 100G | ₹4243.4 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 214698 | Pyridinium dichromate 98% | 20039-37-6 | 500G | ₹15761.2 | 2022-06-14 | Buy |
| ALFA India | ALF-L15132-36 | Pyridinium dichromate, 98% | 20039-37-6 | 500g | ₹10478 | 2022-05-26 | Buy |
| ALFA India | ALF-L15132-22 | Pyridinium dichromate, 98% | 20039-37-6 | 100g | ₹5273 | 2022-05-26 | Buy |
| TCI Chemicals (India) | P0931 | Pyridinium Dichromate | 20039-37-6 | 25G | ₹1600 | 2022-05-26 | Buy |
Pyridinium dichromate Chemical Properties,Uses,Production
Chemical Properties
Orange solid
Uses
Pyridinium dichromate (PDC) is an orange colored solid used as an oxidizing agent.
Oxidizing agent for conversion of primary alcohols to aldehydes and ketones, acetals to esters, and didehydroketones to enones in the presence of tert-butyl hydroperoxide.
Pyridinium Dichromate may be used as an alternative to PCC in nucleoside and carbohydrate oxidation, particularly for fragile molecules. PDC can also be used in conjunction with tertbutylhydroperoxide for a variety of oxidative transformations.
Preparation
Pyridinium dichromate can be obtained by gradual addition of a solution of chromic anhydride (Cr2O3) in water to pyridine in ice cold conditions.
Purification Methods
Dissolve it in the minimum volume of H2O and add 5 volumes of cold Me2CO and cool to -20o. After 3hours the orange crystals are collected, washed with a little cold Me2CO and dried in a vacuum. It is soluble in dimethylformamide (0.9g/mL at 25o), and in H2O, and has a characteristic IR with max at 930, 875, 765, 730 and 730 cm-1. [Corey & Schmidt Tetrahedron Lett 399 1979, Coats & Corrigan Chem Ind (London) 1594 1969.] (Possible CARCINOGEN.) § Available commercially on a polymer support.
Pyridinium dichromate Preparation Products And Raw materials
Raw materials
Preparation Products
Global( 300)Suppliers
| Supplier | Tel | Country | ProdList | Advantage | Inquiry |
|---|---|---|---|---|---|
| GLR Innovations | +91 9891111994 | New Delhi, India | 4535 | 58 | Inquiry |
| NSR Laboratories Pvt. Ltd. | +91-9866989891 +91-9000457345 | Hyderabad, India | 194 | 58 | Inquiry |
| Vardhaman P Golechha | 9704422000 | Telangana, India | 292 | 58 | Inquiry |
| AMINO ORGANICS | +919866989891 | Hyderabad, India | 273 | 58 | Inquiry |
| JSK Chemicals | +919879767970 | Gujarat, India | 3753 | 58 | Inquiry |
| Svaks Biotech India Pvt Ltd | +91-7709222999 +91-7767806001 | Maharashtra, India | 81 | 58 | Inquiry |
| HiMedia Laboratories | 91-22-61471919 | Maharashtra, India | 1841 | 58 | Inquiry |
| Omkar Speciality Chemicals Ltd | + 91-251-2697347 | Maharashtra, India | 75 | 58 | Inquiry |
| Clearsynth Labs | 91-22-45045900 | Maharashtra, India | 3887 | 58 | Inquiry |
| GLR Innovations | 08048961288 | Delhi, India | 93 | 58 | Inquiry |
| Supplier | Advantage |
|---|---|
| GLR Innovations | 58 |
| NSR Laboratories Pvt. Ltd. | 58 |
| Vardhaman P Golechha | 58 |
| AMINO ORGANICS | 58 |
| JSK Chemicals | 58 |
| Svaks Biotech India Pvt Ltd | 58 |
| HiMedia Laboratories | 58 |
| Omkar Speciality Chemicals Ltd | 58 |
| Clearsynth Labs | 58 |
| GLR Innovations | 58 |
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PYRIDINE DICHROMATE
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Chromic acid compound with pyridine (1:2)
Cornforth reagent
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Pyridinium dichromate,98%
Chromic Acid, Compd. with Pyridine (1:2)
PYRIDINIUM DICHROMATE/PDC
PYRIDINIUM DICHROMATE
oxido-(oxido(dioxo)chromio)oxy-dioxochromium,pyridin-1-ium
C5H5NH+)2Cr2O72-
Cat.20569-9
Pyridinium dichromate, 97.5%
Pyridinium dichromate, 97.5%, for synthesis
PyridiniumDichromate>
Pyridinium dichromate ISO 9001：2015 REACH
Pyridinium Dichromate (Cornforth Reagent, PDC) extrapure, 98%
PYRIDINIUM DICHROMATE Extra Pure
PDC
Pyridine dichromate (PDC)
20039-37-6
4879-34-0
C10H12N2Cr2O7
C10H12Cr2N2O7
2C5H5NH2Cr2O7
C10H11N2Cr2O7
C10H10N2H2Cr2O7
Classes of Metal Compounds
Oxidation
Synthetic Reagents
Transition Metal Compounds
Cr (Chromium) Compounds
Pyridinium Compounds
Pharmaceutical raw material
Halogenated Heterocycles
Classes of Metal Compounds
Cr (Chromium) Compounds
Oxidation
Pyridinium Compounds
Synthetic Organic Chemistry
Transition Metal Compounds
Organic-metal salt