INTRODUCTION

Pyridinium tribromide, an organic solid from the category of heterocyclic halides, is a highly efficient and selective bromination agent in organic syntheses. It is also used in production of APIs and intermediates.

Manufacture

It is produced by excessive bromination of pyridine HBr.

SynonymsPyridine HBr perbromide
Monopyridine-1-ium tribromide
CAS no.39416-48-3
EINECS no.254-446-8
Molecular formulaC5H6Br3N
Molecular weight319.82
Structure

Applications

APIs
Dienogest, an oral progestin
Cefteram, an antibiotic
Intermediates
4-Bromo-1-chloroisoquinoline
Mes-stilbene dibromide
Phosphorous tribromide
Others
In alpha-bromination of ketones, phenols, ethers, and unsaturated compounds
In studies concerning bromine incorporation into organic pollutants for environmental impact assessment

SPECIFICATIONS

TestUnitSpecifications
AppearanceDark orange to brown crystalline powder with odour of bromine
Identification by IRThe IR spectrum of the sample should be concordant with that of the standard
SolubilitySoluble in methanol
Melting pointOC128 – 136
Available bromine% w/w45 – 50
Assay%Min 95.0

STORAGE

Product is stored at ambient temperature.

PACKING

25 kg UN-approved HDPE drum with double HDPE liner

REACH STATUS

Not registered

ExSyn offers pyridinium tribromide on commercial scale and welcomes enquiries. No matter the quantity you need, our exceptional quality and service will make ExSyn your supplier of choice ! If you need any additional information or SDS, please get in touch with us.

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