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P118

Sigma-Aldrich

Phaclofen

solid

Synonym(s):

3-Amino-2-(4-chlorophenyl)propanephosphonic acid

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About This Item

Empirical Formula (Hill Notation):
C9H13ClNO3P
CAS Number:
114012-12-3
Molecular Weight:
249.63
MDL number:
MFCD00069328
UNSPSC Code:
12352200
PubChem Substance ID:
24278189
NACRES:
NA.32

form

solid

Quality Level

100

impurities

≥97% (NMR)

color

white

solubility

0.1 M HCl: 13.3 mg/mL
methanol: 19.3 mg/mL
DMSO: insoluble

SMILES string

NCC(CP(O)(O)=O)c1ccc(Cl)cc1

InChI

1S/C9H13ClNO3P/c10-9-3-1-7(2-4-9)8(5-11)6-15(12,13)14/h1-4,8H,5-6,11H2,(H2,12,13,14)

InChI key

VSGNGLJPOGUDON-UHFFFAOYSA-N

Gene Information

human ... GABBR1(2550) , GABBR2(9568)

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General description

Phaclofen is a phosphonic acid derivative of baclofen.

Application

Phaclofen has been used to block GABAB receptor.

Biochem/physiol Actions

Phaclofen plays a vital role in identifying the physiological importance of central and peripheral bicuculline-insensitive receptors with which GABA and (−) baclofen interact. Phaclofen acts as a GABAB receptor antagonist. Phaclofen has an ability to reversibly block the late, bicuculline resistant, K+ dependent inhibitory postsynaptic potential (IPSP) logged in projection cells of the cat and rat dorsal lateral geniculate nucleus and in rat hippocampal CA1 pyramidal neurons.

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H315,H319,H335

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

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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Phaclofen: a peripheral and central baclofen antagonist
Kerr D I, et al.
Brain Research, 405(1), 150-154 (1987)
Christof Geigerseder et al.
Reproductive biology and endocrinology : RB&E, 2, 13-13 (2004-03-26)
The neurotransmitter gamma-aminobutyric acid (GABA) and subtypes of GABA receptors were recently identified in adult testes. Since adult Leydig cells possess both the GABA biosynthetic enzyme glutamate decarboxylase (GAD), as well as GABA(A) and GABA(B) receptors, it is possible that
Mohammad Nasehi et al.
Brain research bulletin, 130, 101-106 (2017-01-24)
Activation of the GABA
D I Kerr et al.
Brain research, 405(1), 150-154 (1987-03-03)
Phaclofen, the phosphonic acid derivative of baclofen, reversibly antagonized the depression of the cholinergic twitch response of the guinea pig ileum and distal colon by either baclofen or GABA. When administered microelectrophoretically, phaclofen reversibly blocked the presumed presynaptic reduction by
Makoto Nishiyama et al.
Frontiers in synaptic neuroscience, 2, 22-22 (2010-01-01)
GABAergic interneuronal network activities in the hippocampus control a variety of neural functions, including learning and memory, by regulating θ and γ oscillations. How these GABAergic activities at pre- and postsynaptic sites of hippocampal CA1 pyramidal cells differentially contribute to
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