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A high affinity inhibitor of the nicotinic acetylcholine receptor in the neuromuscular junction. Blocks acetylcholine activity at the postsynaptic membrane.

Product Attributes



CAS number


Molecular weight


For live or fixed cells

For fixed cells, For live/intact cells

Cell permeability

Membrane impermeant

Storage Conditions

Store at -10 to -35 °C, Protect from light

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Note: Due to operating restrictions related to our COVID-19 response, primary antibody conjugates of R-PE, APC, PerCP, HRP, or AP are temporarily unavailable. All other antibody options are still available. We apologize for the inconvenience. Please see our easy-to-use Mix-n-Stain™ Antibody Labeling Kits for labeling antibodies with R-PE, APC, tandem dyes, and enzymes.
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1 mg
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Supporting Documents

Product Description

A potent neurotoxin that is an inhibitor for the motor endplate acetylcholine receptor (Kd = 1 nM to 1 pM). It binds at the neuromuscular junction with high affinity and is often used to study neuromuscular junctions by blocking cholinergic receptors. The toxin also blocks α7 receptors, located in the central and peripheral nervous systems.

  • A polypeptide snake toxin
  • Blocks and inhibits cholinergic receptors
  • White solid soluble in water

Also see our Fluorescent α-Bungarotoxins and Biotin α-Bungarotoxin which can can be used for labeling of nicotinic acetylcholine receptors at neuromuscular junctions in tissue sections. See our complete selection of α-Bungarotoxins below.

α-Bungarotoxin & Conjugates

ProductEx/Em SizeCatalog number
α-BungarotoxinN/A1 mg00010-1
Biotin-XX-α-BungarotoxinN/A0.5 mg00017
α-Bungarotoxin, CF®405S Conjugate404/431 nm100 ug00002-100ug
0.5 mg00002
α-Bungarotoxin, CF®488A Conjugate490/515 nm100 ug00005-100ug
0.5 mg00005
α-Bungarotoxin, CF®543 Conjugate541/560 nm100 ug00026-100ug
0.5 mg00026
α-Bungarotoxin, CF®555 Conjugate555/565 nm100 ug00018-100ug
0.5 mg00018
α-Bungarotoxin, CF®568 Conjugate562/583 nm100 ug00006-100ug
0.5 mg00006
α-Bungarotoxin, CF®594 Conjugate596/614 nm100 ug00007-100ug
0.5 mg00007
α-Bungarotoxin, CF®633 Conjugate630/650 nm100 ug00009-100ug
0.5 mg00009
α-Bungarotoxin CF®640R, Conjugate642/662 nm100 ug00004-100ug
0.5 mg00004
α-Bungarotoxin CF®680R, Conjugate680/701 nm100 ug00003-100ug
0.5 mg00003
α-Bungarotoxin, Fluorescein (FITC) Conjugate494/518 nm0.5 mg00011
10 x 50 ug00013
α-Bungarotoxin, Tetramethylrhodamine Conjugate553/577 nm0.5 mg00012
10 x 50 ug00014
α-Bungarotoxin, Sulforhodamine-101 (Texas Red®) Conjugate593/613 nm0.5 mg00015
10 x 50 ug00016


CF is a registered trademark of Biotium, Inc. Texas Red is a registered trademark of Thermo Fisher Scientific.

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