FAM hydrazide, 6-isomer

Cat. # Quantity Price Lead time
15170 1 mg $110 in stock
25170 5 mg $210 in stock
45170 25 mg $410 in stock
55170 50 mg $695 in stock
65170 100 mg $1190 in stock
Found better price? Let us know and we will propose the way forward!

Fluorescein (FAM) is a xanthene dye, a parent of fluorescein dye series. This is a hydrazide derivative for the labeling of carbonyl compounds, aldehydes, and ketones.

Fluorescein is a bright dye that is compatible with a great number of instruments.

Carbohydrates are also often labeled with hydrazides by a protocol involving their oxidation with periodate first, and reacting with dye hydrazide after it.

FAM absorbance and emission spectra

FAM absorbance and emission spectra

Customers also purchased with this product

sulfo-Cyanine5 maleimide

Thiol reactive maleimide, water soluble cyanine dye for Cy5 channel.

sulfo-Cyanine7 maleimide

Water-soluble near-infrared dye maleimide for the labeling of proteins and peptides.

Cyanine3 hydrazide

Cyanine3 hydrazide is a carbonyl-reactive dye for Cy3 channel.

General properties

Appearance: yellow/orange solid
Mass spec M+ increment: 371.1
Molecular weight: 426.81
CAS number: 2183440-65-3 (hydrochloride); 151890-73-2
Molecular formula: C21H15N2ClO6
IUPAC name: Spiro[isobenzofuran-​1(3H)​,​9'-​[9H]​xanthene]​-​6-​carboxylic acid, 3',​6'-​dihydroxy-​3-​oxo-​, hydrazide, hydrochloride
Solubility: good in DMF, DMSO, alcohols
Quality control: NMR 1H, HPLC-MS (95%)
Storage conditions: Storage: 24 months after receival at -20°C in the dark. Transportation: at room temperature for up to 3 weeks. Avoid prolonged exposure to light. Desiccate.
MSDS: Download
Product specifications

Spectral properties

Excitation/absorption maximum, nm: 492
ε, L⋅mol−1⋅cm−1: 74000
Emission maximum, nm: 522
Fluorescence quantum yield: 0.93
CF260: 0.22
CF280: 0.17
Your item has been added. View your cart or proceed to checkout
The count of items is incorrect.