2-Bromo-1-ethyl-pyridinium tetrafluoroborate

ALDRICH/77386 - ≥97.0% (T)

Synonym: BEP

CAS Number: 878-23-9
Empirical Formula (Hill Notation): C₇H₉BBrF₄N
Molecular Weight: 273.86
EC Number: 212-900-2
MDL Number: MFCD00060046
Linear Formula: C₇H₉BBrF₄N
Product Type: Chemical

Catalog Number	PKG Qty.	Price	Quantity


45-77386-5G-F	5 g	$193.00 1/EA		Add To Favorites

Properties
Descriptions
Safety Info.
Basic Data

application(s)	peptide synthesis
assay	≥97.0% (T)
form	crystals
InChI	1S/C7H9BrN.BF4/c1-2-9-6-4-3-5-7(9)8;2-1(3,4)5/h3-6H,2H2,1H3;/q+1;-1
InChI key	YJDXVQLBIAJTHP-UHFFFAOYSA-N
mp	103-107 °C
reaction suitability	reaction type: Coupling Reactions
SMILES string	F[B-](F)(F)F.CC[n+]1ccccc1Br

Application:	2-Bromo-1-ethyl-pyridinium tetrafluoroborate can be used as a coupling reagent for: • The synthesis of N-methylated peptides in solution and solid phase. • The synthesis of cyclosporin A fragment and dolastatin 15 pentapeptide moiety.
General description:	2-Bromo-1-ethyl-pyridinium tetrafluoroborate is a coupling reagent employed in the synthesis of amides and esters through amidation and esterification reactions, respectively. It is generally prepared by the reaction of triethyloxonium tetrafluoroborate with 2?bromo pyridine.
Other Notes:	Coupling reagent for peptide synthesis; less racemization and faster reaction than with other reagents;e.g. BOP, PyBrOP, PyClU, BTFFH, CMBI
Packaging:	5 g in poly bottle

RIDADR	NONH for all modes of transport
WGK Germany	WGK 3
Flash Point(F)	Not applicable
Flash Point(C)	Not applicable

Purity	≥97.0% (T)
mp	103-107 °C
UNSPSC	12352005

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