Name: AATOM™ 390 alkyne
Brand: AAT Bioquest
SKU: 70204
Price: 118 USD
Availability: InStock

AATOM™ 390 alkyne

AATOM™ 390 alkyne is an azide-reactive, blue fluorescent dye with an excitation/emission of 390/475 nm that is used for FACS and FISH applications.

Easy Conjugation: Labels azides on peptides, antibodies, and other biomolecules via click chemistry
High Quantum Yield & Photostability: Delivers strong, stable fluorescence for sensitive applications
Large Stokes Shift: Enables effective signal separation, reducing background interference

The chemical structure of AATOM™ 390 alkyne.

Datasheet

SDS

Catalog	Size	Price	Quantity
70204	1 mg	Price

Overview

AATOM™ 390 is a coumarin-based fluorescent dye characterized by its high fluorescence quantum yield, large Stokes shift, good photostability, and low molecular weight. It exhibits moderate hydrophilicity and is optimally excited within the 360–410 nm range, with a mercury arc lamp (emission lines at 365 nm and 405 nm) serving as an effective excitation source. This dye is well-suited for applications in single-molecule detection and advanced high-resolution microscopy techniques, including PALM, dSTORM, and STED. Additionally, AATOM™ 390 is compatible with flow cytometry (FACS), fluorescence in situ hybridization (FISH), and other diverse biological assays.

The alkyne derivative of AATOM™ 390 is widely used for labeling azides on peptides, antibodies, and other biomolecules via click chemistry. It participates in copper-catalyzed azide-alkyne cycloaddition (CuAAC) with azide-containing molecules. This product is manufactured by AAT Bioquest and is not affiliated with ATTO-TEC GmbH.

Calculators

Common stock solution preparation

Table 1. Volume of DMSO needed to reconstitute specific mass of AATOM™ 390 alkyne to given concentration. Note that volume is only for preparing stock solution. Refer to sample experimental protocol for appropriate experimental/physiological buffers.

	0.1 mg	0.5 mg	1 mg	5 mg	10 mg
1 mM	202.22 µL	1.011 mL	2.022 mL	10.111 mL	20.222 mL
5 mM	40.444 µL	202.22 µL	404.441 µL	2.022 mL	4.044 mL
10 mM	20.222 µL	101.11 µL	202.22 µL	1.011 mL	2.022 mL

Molarity calculator

Enter any two values (mass, volume, concentration) to calculate the third.

Mass (Calculate)		Molecular weight		Volume (Calculate)		Concentration (Calculate)		Moles
mg	÷	494.51 g/mol	=	mL	x	mM	=	mmol

Physical properties

Molecular weight	494.51
Solvent	DMSO

Spectral properties

Correction factor (260 nm)	0.46
Correction factor (280 nm)	0.09
Extinction coefficient (cm ^-1 M ^-1)	24000
Excitation (nm)	390
Emission (nm)	476
Quantum yield	.90

Storage, safety and handling

H-phrase	H303, H313, H333
Hazard symbol	XN
Intended use	Research Use Only (RUO)
R-phrase	R20, R21, R22
Storage	Freeze (< -15 °C); Minimize light exposure
UNSPSC	12352200

Telephone
Fax
Email	sales@aatbio.com
International	See distributors
Bulk request	Inquire
Custom size	Inquire
Technical Support	Contact us
Request quotation	Request
Purchase order	Send to sales@aatbio.com
Shipping	Standard overnight for United States, inquire for international

Page updated on April 29, 2026