AMCA NHS ester
Cat. # | Quantity | Price | Lead time | Buy this product |
---|---|---|---|---|
3606-5mg | 5 mg | $110 | in stock | |
3606-25mg | 25 mg | $290 | in stock | |
3606-50mg | 50 mg |
$435
|
in stock | |
3606-100mg | 100 mg |
$595
|
in stock |
Activated NHS-ester of AMCA (aminomethyl coumarin acetate) dye. This NHS ester is an amine-reactive dye for labeling of amine groups in proteins, peptides, amino-modified oligos, and other target molecules.
AMCA is one of the brightest blue fluorescent dyes. This fluorophore has a relatively large Stoke’s shift, high resistance to photobleaching, and pH-independent fluorescence from pH 4 to 10. AMCA is a widely used fluorophore for multiple-color labeling due to its minimal fluorescence overlap with green- and longer wavelength-emitting fluorescent dyes.
Absorption and emission spectra of AMCA

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AF 343 (Coumarin)-X-NHS ester
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Appearance: | gray powder |
Mass spec M+ increment: | 331.3 |
Molecular weight: | 366.76 |
CAS number: | 113721-87-2 |
Molecular formula: | C16H15ClN2O6 |
Solubility: | in DMSO, DMF |
Quality control: | NMR 1H and HPLC-MS (95+%) |
Storage conditions: | 12 months after receival at -20°C in the dark. Transportation: at room temperature for up to 3 weeks. Desiccate. |
MSDS: | Download |
Product specifications |
Spectral properties
Excitation/absorption maximum, nm: | 348 |
ε, L⋅mol−1⋅cm−1: | 17400 |
Emission maximum, nm: | 435 |
Fluorescence quantum yield: | 0.91 |
CF260: | 0.16 |
CF280: | 0.13 |
