AZDye 350 Acid

Unit Size
Price (USD)
Cat.#: 1003-1
Unit size: 1 mg
in stock
Cat.#: 1003-5
Unit size: 5 mg
in stock
Cat.#: 1003-25
Unit size: 25 mg
in stock
Cat.#: 1003-100
Unit size: 100 mg
in stock

AZDye™ 350 Acid is an amine reactive, non-activated, water-soluble, blue-emitting dye used for derivatizing amine-containing molecules in the presence of activators (e.g. EDC or HATU) through a stable, covalent amide bond. The NHS ester (or succinimidyl ester) of this dye is also available for conjugating AZDye™ 350 to the primary amines of proteins or antibodies (Lys), amine-modified oligonucleotides, and other amine-containing molecules.

AZDye™ 350 is a moderately photostable, blue-fluorescent probe optimally excited by the 350 nm laser line routinely used for producing bright, blue fluorescent conjugates for imaging and flow cytometry. The emission of AZDye™ 350 conjugates is slightly shorter than that of AMCA or AMCA conjugates, reducing AZDye™ 350’s spectral overlap with the emission of fluorescein or Alexa Fluor® 488 dye.

AZDye™ 350 dye structurally is identical to Alexa Fluor® Dye 350.

Primary amines (needs activation)
Abs/Em Maxima
346/445 nm
Extinction coefficient
19,000 cm-1M-1
Water, DMSO, DMF
Spectrally similar dyes
Alexa Fluor® 350, AMCA, DyLight® 350
Molecular weight
Storage conditions
Shipping conditions
Ambient temperature

Alexa Fluor® is a registered trademark of Invitrogen, part of Thermo Fisher Scientific. Fluoroprobes is not affiliated with or endorsed by Thermo Fisher Scientific. AZDyes™ are GENERIC versions of Alexa Fluor® Dyes and ARE NOT manufactured, distributed, or affiliated in any way with Thermo Fisher Scientific.