| Identification | More | [Name]
Pyridinium tribromide | [CAS]
39416-48-3 | [Synonyms]
POLY(4-VINYLPYRIDINE HYDROBROMIDE PERBROMIDE)
PVPHP
PYRIDINE HYDROBROMIDE, COMPOUND WITH BROMIDE
pyridine hydrobromide compound with bromine
PYRIDINE HYDROBROMIDE PERBROMIDE
PYRIDINE HYDROBROMIDE PERBROMIDE POLYMER BOUND
PYRIDINE PERBROMIDE HYDROBROMIDE
PYRIDINIUM BROMIDE PERBROMIDE
PYRIDINIUM HYDROBROMIDE PERBROMIDE
PYRIDINIUM TRIBROMIDE
hydrogentribromide,compd.withpyridine(1:1)
Hydrogentribromide-pyridine-complex
PYRIDINIUM TRIBROMIDE, TECH., 90%
Pyridine Hydrobomide Perbromide
PyridiniumBrimidePerbromide
Pyridine hydrobromide perbromide, tech., 90+%
pyridine hydrobromide perbromide, tech.
PYRIDINIUMBROMIDEPERBROMIDE,TECHNICAL
Pyridinium perbromide
Poly(4-vinylpyridine hydrobromide perbromide), PVPHP, Pyridine hydrobromide perbromide polymer-bound | [EINECS(EC#)]
254-446-8 | [Molecular Formula]
C5H6Br3N-2 | [MDL Number]
MFCD00013223 | [Molecular Weight]
319.82 | [MOL File]
39416-48-3.mol |
| Chemical Properties | Back Directory | [Appearance]
red crystals | [Melting point ]
127-133 °C
| [density ]
2.9569 (rough estimate) | [refractive index ]
1.6800 (estimate) | [storage temp. ]
2-8°C | [form ]
Powder, Crystals and/or Chunks | [color ]
Red-orange to red to brown | [Stability:]
Stable. Incompatible with strong oxidizing agents, strong bases. | [Water Solubility ]
decomposes | [Sensitive ]
Lachrymatory | [Merck ]
14,7973 | [BRN ]
3690144 | [InChIKey]
YPCPFIMBGJOEKU-UHFFFAOYSA-O | [CAS DataBase Reference]
39416-48-3(CAS DataBase Reference) | [EPA Substance Registry System]
39416-48-3(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
C,Xi | [Risk Statements ]
R37/38:Irritating to respiratory system and skin .
R34:Causes burns.
R36:Irritating to the eyes. | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S24/25:Avoid contact with skin and eyes .
S27:Take off immediately all contaminated clothing . | [RIDADR ]
UN 3261 8/PG 2
| [WGK Germany ]
3
| [F ]
3 | [Hazard Note ]
Lachrymatory | [TSCA ]
Yes | [HazardClass ]
8 | [PackingGroup ]
III | [HS Code ]
29333100 |
| Hazard Information | Back Directory | [Chemical Properties]
red crystals | [Uses]
In small-scale brominations, where it is much more convenient and agreeable to measure and use than elemental bromine. | [Uses]
Pyridinium Tribromide is a reagent used in the α-thiocyanation of ketones and has also been applied to the synthesis of β-adrenergic blocking agents (also known as β-blockers) for patients with heart
failure. | [Purification Methods]
It is a very good brominating agent-liberating one mol of Br2. Purify it by recrystallisation from glacial acetic acid (33g from 100mL of AcOH) to give orange-red crystals. [Fieser & Fieser Reagents for Organic Chemistry 1 967 1967, Englert & McElvain J Am Chem Soc 51 865 1929, Beilstein 20 II 103, 20/5 V 181.] |
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