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218782

Sigma-Aldrich

Tetraphenylphosphonium bromide

97%

Synonym(s):

Tetraphenylphosphorus bromide

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About This Item

Linear Formula:
(C6H5)4P(Br)
CAS Number:
2751-90-8
Molecular Weight:
419.29
Beilstein:
3922383
EC Number:
220-393-4
MDL number:
MFCD00011915
UNSPSC Code:
12352002
PubChem Substance ID:
24853088
NACRES:
NA.22
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Quality Level

100

Assay

97%

form

solid

mp

295-300 °C (lit.)

SMILES string

[Br-].c1ccc(cc1)[P+](c2ccccc2)(c3ccccc3)c4ccccc4

InChI

1S/C24H20P.BrH/c1-5-13-21(14-6-1)25(22-15-7-2-8-16-22,23-17-9-3-10-18-23)24-19-11-4-12-20-24;/h1-20H;1H/q+1;/p-1

InChI key

BRKFQVAOMSWFDU-UHFFFAOYSA-M

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Application

Supporting electrolyte for the electroreduction of buckminsterfullerene.[1]

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
MKCK0560
MKAA1277V
08613BJ
09927MD
05515PU

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The Journal of Physical Chemistry, 96, 7137-7137 (1992)
M S El-Shahawi et al.
Analytical sciences : the international journal of the Japan Society for Analytical Chemistry, 27(7), 757-757 (2011-07-13)
Fast and selective sorptions of Cr(VI) species from aqueous media onto tetraphenylphosphonium bromide (TPP(+) · Br(-)) physically immobilized polyurethane foams (PUFs) sorbent were achieved. Based on the Scatchard model of binding sites of the PUFs and Langmuir and Dubinin-Radushkevich (D-R)
Yael Elbaz et al.
The Journal of biological chemistry, 283(18), 12276-12283 (2008-03-07)
Glycine residues may play functional and structural roles in membrane proteins. In this work we studied the role of glycine residues in EmrE, a small multidrug transporter from Escherichia coli. EmrE extrudes various drugs across the plasma membrane in exchange
Jae Sung Lee et al.
The Journal of neuroscience : the official journal of the Society for Neuroscience, 28(32), 7945-7953 (2008-08-08)
At the immature calyx of Held, the fast decay phase of a Ca(2+) transient induced by tetanic stimulation (TS) was followed by a period of elevated [Ca(2+)](i) for tens of seconds, referred to as posttetanic residual calcium (Ca(res)). We investigated
Yang Zhou et al.
Bioconjugate chemistry, 22(8), 1459-1472 (2011-06-24)
Alteration in mitochondrial transmembrane potential (ΔΨ(m)) is an important characteristic of cancer. The observation that the enhanced negative mitochondrial potential is prevalent in tumor cell phenotype provides a conceptual basis for development of mitochondrion-targeting therapeutic drugs and molecular imaging probes.
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Questions

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  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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