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Key Documents

P206

Sigma-Aldrich

Philanthotoxin 343 tris(trifluoroacetate) salt

solid

Synonym(s):

PhTX-343, S-N-[3-[[4-[(3-Aminopropyl)amino]butyl]amino]propyl]-4-hydroxy-α-[(1-oxobutyl)amino]-benzenepropanamide tris-trifluoroacetate

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About This Item

Empirical Formula (Hill Notation):
C23H41N5O3 · 3C2HF3O2
CAS Number:
Molecular Weight:
777.67
MDL number:
UNSPSC Code:
12352200
PubChem Substance ID:

form

solid

color

light yellow-green

solubility

methanol: >8 mg/mL (solutions should be freshly prepared.)

storage temp.

−20°C

SMILES string

OS(=O)(=O)C(F)(F)F.OS(=O)(=O)C(F)(F)F.OS(=O)(=O)C(F)(F)F.CCCC(=O)N[C@@H](Cc1ccc(O)cc1)C(=O)NCCCNCCCCNCCCN

InChI

1S/C23H41N5O3.3CHF3O3S/c1-2-7-22(30)28-21(18-19-8-10-20(29)11-9-19)23(31)27-17-6-16-26-14-4-3-13-25-15-5-12-24;3*2-1(3,4)8(5,6)7/h8-11,21,25-26,29H,2-7,12-18,24H2,1H3,(H,27,31)(H,28,30);3*(H,5,6,7)/t21-;;;/m0.../s1

InChI key

QTCLKBFOFGTNMC-YDULTXHLSA-N

Gene Information

Application

Philanthotoxin 343 tris(trifluoroacetate) salt has been used as Ca2+-permeable α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptors (AMPARs) blocker. It has also been used as an effective glutamate receptors blocker in an acute homeostasis paradigm to examine the speed of the Neto-α-mediated homeostatic response in Drosophila.

Biochem/physiol Actions

Blocks NMDA-gated ion channels; synthetic analog of the wasp polyamine amide toxin δ-philanthotoxin.
Philanthotoxin 343 is a synthetic analog of the wasp polyamine amide toxin δ-philanthotoxin. It blocks the activation of ionotropic receptors such as acetylcholine receptor (AChR) or inhibitory glutamate receptors (iGluRs).

Caution

Hygroscopic

Reconstitution

Addition of 1 mL of solvent to vial yields a 1 mM solution.

Legal Information

Sold under license from Columbia University.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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M Nankai et al.
Journal of neurochemistry, 64(5), 2043-2048 (1995-05-01)
NMDA receptor stimulation concomitantly increases the release of [14C]acetylcholine and [3H]-spermidine from rat striatal slices in vitro. The NMDA-induced release of both acetylcholine and spermidine was blocked with equal potency by the NMDA channel blocker phencyclidine (0.1-10 microM). However, certain
J W Jaroszewski et al.
Journal of medicinal chemistry, 39(2), 515-521 (1996-01-19)
Acid-base properties (pKa values and proton distribution patterns) of philanthotoxin-343(PhTX-343) were investigated by 1H and 13C NMR titration. Chemical shift data and the total ionization shifts were used to assign carbon atoms of the polyamine chain. Nonlinear analysis of the
R Bähring et al.
The Journal of physiology, 509 ( Pt 3), 635-650 (1998-05-23)
1. The action of philanthotoxin 343 (PhTX) on rat homomeric GluR6(Q) recombinant glutamate receptor channels was analysed using concentration-jump techniques and outside-out patches from HEK 293 cells. Both onset and recovery from block by external PhTX were dependent on the
P Brackley et al.
Neuroscience letters, 114(1), 51-56 (1990-07-02)
The effects of spermine and a synthetic analogue (PhTX-343) of the polyamine amide toxin, delta-philanthotoxin, on the responses of Xenopus oocytes to application of amino acids were examined using voltage clamp. The oocytes were injected with either total rat brain
Denis B Tikhonov et al.
Biophysical journal, 87(1), 159-170 (2004-07-09)
Models of closed and open channel pores of a muscle-type nicotinic acetylcholine receptor (nAChR) channel comprising M1 and M2 segments are presented. A model of the closed channel is proposed in which hydrophobic residues of the Equatorial Leucine ring screen

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