AFDye 430 Azide

Unit Size
Price (USD)
Cat.#: 1033-1
Unit size: 1 mg
in stock
Cat.#: 1033-5
Unit size: 5 mg
in stock
Cat.#: 1033-25
Unit size: 25 mg
in stock

AFDye™ 430 Azide (Alexa Fluor® 430 Azide) is a water-soluble, green-fluorescent, azide-activated probe that reacts with terminal alkynes via a copper-catalyzed click reaction (CuAAC). It also reacts with strained cyclooctyne via a copper-free click chemistry reaction to form a stable triazole and does not require a Cu-catalyst or elevated temperatures.

AFDye™ 430 is a bright, photostable, green-fluorescent probe with excitation near its absorption maximum at 432 nm and emission maximum at 539 nm. This probe is water soluble and pH-insensitive from pH 4 to pH 10.

A next generation probe, AFDye™ 430 Picolyl Azide, is also available for detection of low abundance alkyne-tagged biomolecules.

AFDye™ 430 is structurally identical to Invitrogen’s Alexa Fluor® 430 dye.

Alkynes, cyclooctynes
Abs/Em Maxima
430/539 nm
Extinction coefficient
15,000 cm-1M-1
Water, DMSO, DMF
Spectrally similar dyes
Alexa Fluor® 430
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. AFDyes™ are GENERIC versions of Alexa Fluor® Dyes and ARE NOT manufactured, distributed, or affiliated in any way with Thermo Fisher Scientific.