Name: DAX-J2™ Orange
Brand: AAT Bioquest
SKU: 16300
Price: 174 USD
Availability: InStock

DAX-J2™ Orange

DAX-J2™ Orange is a new nitric oxide (NO) sensor recently developed by AAT Bioquest. It is a non-fluorescent cell permeable reagent that can measure free NO and nitric oxide synthase (NOS) activity in living cells under physiological conditions. Once inside the cell the blocking groups on the DAX-J2 reagent are released to generate the highly fluorescent product upon NO oxidation. DAX-J2 fluorescent product can be detected using the filter set of Cy3® and TRITC that is equipped with most of flow cytometers and fluorescence microscope. DAX-J2 Orange has distinct advantages for NO detection than the popular DAF-2 NO probe: 1). It does not require esterase activity for NO detection. DAF-2 requires intracellular esterases to cleave its acetate groups for detecting NO activity. This esterase dependence often complicates the NO detection since esterse activities are affected by cell health and many other factors. 2). DAX-J2 product exhibits pH-independent fluorescence while DAF-2 has its fluorescence highly affected by pH. 3). DAX-J2 fluorescent product is much more photostable than DAF-2 product.

Fluorescence response of DAX-J2<sup>TM</sup> Orange (5 uM) to different reactive oxygen species (1 mM) in PBS buffer (pH 7.2). The fluorescence intensities were measured with Ex/Em = 540/570 nm.

Protocol

SDS

COA

Catalog	Size	Price	Quantity
16300	1 mg	Price

Calculators

Common stock solution preparation

Table 1. Volume of DMSO needed to reconstitute specific mass of DAX-J2™ Orange 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	209.833 µL	1.049 mL	2.098 mL	10.492 mL	20.983 mL
5 mM	41.967 µL	209.833 µL	419.666 µL	2.098 mL	4.197 mL
10 mM	20.983 µL	104.916 µL	209.833 µL	1.049 mL	2.098 mL

Molarity calculator

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

Mass (Calculate)		Molecular weight		Volume (Calculate)		Concentration (Calculate)		Moles
mg	÷	476.57 g/mol	=	mL	x	mM	=	mmol

Citations

View all 3 citations: Citation Explorer

Nitric oxide upregulates microglia phagocytosis and increases transient receptor potential vanilloid type 2 channel expression on the plasma membrane

Authors:

Maksoud, Matthew JE and Tellios, Vasiliki and An, Dong and Xiang, Yun-Yan and Lu, Wei-Yang

Journal:

Glia (2019)

Fluorescent real-time quantitative measurements of intracellular peroxynitrite generation and inhibition

Authors:

Luo, Zhen and Zhao, Qin and Liu, Jixiang and Liao, Jinfang and Peng, Ruogu and Xi, Yunting and Diwu, Zhenjun

Journal:

Analytical biochemistry (2017): 44--48

Inducible Nitric Oxide Synthase (iNOS) Is a Novel Negative Regulator of Hematopoietic Stem/Progenitor Cell Trafficking

Authors:

Adamiak, Mateusz and Abdelbaset-Ismail, Ahmed and Moore, Joseph B and Zhao, J and Abdel-Latif, Ahmed and Wysoczynski, Marcin and Ratajczak, Mariusz Z

Journal:

Stem Cell Reviews and Reports (2016): 1--12

References

View all 139 references: Citation Explorer

Pitfalls and limitations in using 4,5-diaminofluorescein for evaluating the influence of polyphenols on nitric oxide release from endothelial cells

Authors:

Uhlenhut K, Hogger P.

Journal:

Free Radic Biol Med (2012): 2266

Effects of moderate electrical stimulation on reactive species production by primary rat skeletal muscle cells: cross talk between superoxide and nitric oxide production

Authors:

Lambertucci RH, Silveira Ldos R, Hirabara SM, Curi R, Sweeney G, Pithon-Curi TC.

Journal:

J Cell Physiol (2012): 2511

Improved measurements of intracellular nitric oxide in intact microvessels using 4,5-diaminofluorescein diacetate

Authors:

Zhou X, He P.

Journal:

Am J Physiol Heart Circ Physiol (2011): H108

Aging negatively affects estrogens-mediated effects on nitric oxide bioavailability by shifting ERalpha/ERbeta balance in female mice

Authors:

Novensa L, Novella S, Medina P, Segarra G, Castillo N, Heras M, Hermenegildo C, Dantas AP.

Journal:

PLoS One (2011): e25335

Temporal and spatial correlation of platelet-activating factor-induced increases in endothelial [Ca(2)(+)]i, nitric oxide, and gap formation in intact venules

Authors:

Zhou X, He P.

Journal:

Am J Physiol Heart Circ Physiol (2011): H1788

Physical properties

Molecular weight	476.57
Solvent	DMSO

Spectral properties

Excitation (nm)	552
Emission (nm)	575

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

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Fax
Email	sales@aatbio.com
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Page updated on October 13, 2025