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Dipyridinium dichromate

Dipyridinium dichromate structure

CAS No:
20039-37-6
Formula:
C5H5N.¹/2Cr2H2O7
Chemical Name:
Dipyridinium dichromate
Synonyms:
Chromic acid (H2Cr2O7),compd. with pyridine (1:2);Pyridine,compd. with dichromic acid (H2Cr2O7) (2:1);Dichromic acid (H2Cr2O7),compd. with pyridine (1:2);Pyridine,compd. with chromic acid (H2Cr2O7) (2:1);Dipyridinium dichromate;Bis(pyridinium) dichromate;12548-37-7
Categories:
Organic Chemistry > Amides

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Description

Orange solid

Dipyridinium dichromate Basic Attributes

Molecular Weight：

376.204

Exact Mass：

375.945465

EC Number：

243-478-8

HScode：

29333100

Characteristics

PSA：

143.75000

XLogP3：

1.26600

Appearance：

yellow granule

Melting Point：

152-153 °C(lit.)

Water Solubility：

soluble

Storage Conditions：

Store at RT.

Safety Information

Packing level：

Hazard category：

5.1

Transport codes：

UN 1479 5.1/PG 2

wgk germany：

hazard class code：

R20/21/22;R43;R45;R46;R49;R50/53;R60;R61;R8

safety instructions：

S53-S45-S60-S61-S37-S29-S24-S17

Marks：

O:Oxidizingagent;T:Toxic;N:Dangerousfortheenvironment;

Stability/Shelf Life：

Stable at room temperature in closed containers under normal storage and handling conditions.

Precautionary statement(s)：

P201, P202, P210, P220, P221, P240, P241, P260, P261, P264, P272, P273, P280, P281, P301+P330+P331, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P308+P313, P310, P321, P332+P313, P333+P313, P337+P313, P362, P363, P370+P378, P391, P405, P501

Hazard Statements：

H228

Dipyridinium dichromate Use and Manufacturing

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.

Computed Properties

Molecular Weight:297.10
Hydrogen Bond Donor Count:2
Hydrogen Bond Acceptor Count:8
Rotatable Bond Count:2
Exact Mass:296.903261
Monoisotopic Mass:296.903261
Topological Polar Surface Area:131
Heavy Atom Count:15
Complexity:252
Covalently-Bonded Unit Count:2
Compound Is Canonicalized:Yes

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CAS No.: 20039-37-6

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