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T6700

Sigma-Aldrich

TRAM-34

≥98% (HPLC), Ca2+-activated K+ channel inhibitor, solid

Synonym(s):

1-[(2-Chlorophenyl)diphenylmethyl]-1H-pyrazole

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About This Item

Empirical Formula (Hill Notation):
C22H17ClN2
CAS Number:
289905-88-0
Molecular Weight:
344.84
MDL number:
MFCD09842562
UNSPSC Code:
12352200
PubChem Substance ID:
329826852
NACRES:
NA.77

Key Documents

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Product Name

TRAM-34, ≥98% (HPLC), solid

Quality Level

100

assay

≥98% (HPLC)

form

solid

color

off-white

solubility

DMSO: 2 mg/mL
H2O: insoluble

storage temp.

2-8°C

SMILES string

Clc1ccccc1C(c2ccccc2)(c3ccccc3)n4cccn4

InChI

1S/C22H17ClN2/c23-21-15-8-7-14-20(21)22(25-17-9-16-24-25,18-10-3-1-4-11-18)19-12-5-2-6-13-19/h1-17H

InChI key

KBFUQFVFYYBHBT-UHFFFAOYSA-N

Application

TRAM-34 has been used to study its effect on the prevention of vascular restenosis after balloon angioplasty.

Biochem/physiol Actions

TRAM-34 exhibits 100-fold selectivity (Kd = 20 nM) for IKCa1 channels over other K+ channels (Charybdotoxin, Kd = 5 nM, Clotrimazole, Kd = 70 nM; Nitrendipine Kd = 900 nM). Furthermore, TRAM-34 is known to suppress the activation of human T lymphocytes,.
TRAM-34 is a potent inhibitor of the intermediate-conductance Ca2+-activated K+ channel.

Features and Benefits

This compound is featured on the Potassium Channels page of the Handbook of Receptor Classification and Signal Transduction. To browse other handbook pages, click here.

Preparation Note

TRAM-34 is soluble in DMSO at 2 mg/ml. However, it is insoluble in water.

pictograms

Exclamation mark
GHS07

signalword

Warning

hcodes

H302,H413

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Chronic 4

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
052M4607V
077K46054
077K46053
077K46052
077K46051

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C Kondo et al.
Experimental physiology, 103(8), 1101-1122 (2018-05-24)
What is the central question of this study? What are the main [Ca2+ ]i signalling pathways activated by ATP in human synovial fibroblasts? What is the main finding and its importance? In human synovial fibroblasts ATP acts through a linked
Nicole Glaser et al.
Pediatric diabetes, 18(5), 356-366 (2016-05-14)
Diabetic ketoacidosis (DKA) causes brain injuries in children ranging from subtle to life-threatening. Previous studies suggest that DKA-related brain injury may involve both stimulation of Na-K-Cl cotransport and microglial activation. Other studies implicate the Na-K-Cl cotransporter and the Ca-activated K
Friederike A Steudel et al.
Molecular oncology, 11(9), 1172-1188 (2017-05-31)
Oncogenic signalling via Ca
Zhihua Yu et al.
Frontiers in cellular neuroscience, 11, 319-319 (2017-10-28)
Ischemic stroke is a devastating neurological disease that can initiate a phenotype switch in astrocytes. Reactive astrogliosis is a significant pathological feature of ischemic stroke and is accompanied by changes in gene expression, hypertrophied processes and proliferation. The intermediate-conductance Ca
Jens G Danielczok et al.
Frontiers in physiology, 8, 979-979 (2017-12-21)
When red blood cells (RBCs) pass constrictions or small capillaries they need to pass apertures falling well below their own cross section size. We used different means of mechanical stimulations (hypoosmotic swelling, local mechanical stimulation, passing through microfluidic constrictions) to
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