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Pyridinium tribromide

Pyridinium tribromide structure

CAS No:
39416-48-3
Formula:
C5H5N.Br3H
Chemical Name:
Pyridinium tribromide
Synonyms:
Hydrogen tribromide,compd. with pyridine (1:1);Pyridine,(hydrogen tribromide);Pyridinium tribromide;Pyridinium bromide perbromide;Pyridinium hydrobromide perbromide;Pyridinium perbromide;NSC 61191;543-52-2;34842-62-1;36812-55-2;50514-09-5;66323-10-2;70873-43-7;91113-93-8;256464-56-9;1863030-75-4
Categories:
Pharmaceutical Intermediates > Heterocyclic Compound

Description

Pyridinium tribromide is an organic bromide composed of pyridine (C₅H₅N) and tribromide ion (Br₃⁻). This compound usually exists as orange to red crystals or powders with a strong bromine odor. Its molecular weight is 319.82 g/mol, melting point is about 130-135°C (decomposition), and it is easily soluble in water and organic solvents such as ethanol and ether.

Pyridinium tribromide Basic Attributes

Molecular Weight：

319.82

Exact Mass：

316.80500

BRN：

3690144

EC Number：

254-446-8

HScode：

29333100

Characteristics

PSA：

14.14000

XLogP3：

-0.80410

Appearance：

Red-orange to red to brown Powder, Crystals and/or Chunks

Density：

2.9569 (rough estimate)

Melting Point：

134 °C

Boiling Point：

115.3ºC at 760 mmHg

Flash Point：

20ºC

Water Solubility：

decomposes

Storage Conditions：

2-8°C

Safety Information

Packing level：

III

Hazard category：

Transport codes：

UN 3261 8/PG 2

wgk germany：

hazard class code：

37/38-34-36

safety instructions：

26-36/37/39-45-24/25-27

Marks：

C,Xi

Hazard note：

Lachrymatory

Stability/Shelf Life：

Stable. Incompatible with strong oxidizing agents, strong bases.

Precautionary statement(s)：

P280-P305 + P351 + P338-P310

Hazard Statements：

H314

Pyridinium tribromide Use and Manufacturing

Pyridinium tribromide is widely used in bromination reactions in organic synthesis as a bromination reagent. Pyridinium tribromide is used to synthesize certain drugs and pharmaceutical intermediates. In the laboratory, pyridinium tribromide is used to study the mechanism of bromination reactions and develop new synthetic methods. Pyridinium tribromide is used as an analytical reagent to detect the presence of certain organic compounds.

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