FMOC-Lys(QSY-7)-OH

FMOC-Lys(QSY-7)-OH is a building block for in-sequence Lys labeling by QSY-7. QSY-7 is a quencher that can be used to develop a FRET probe with Cy3, Alexa Fluor 555, iFluor® 555, DyLight 555, ATTO 550, ATTO 565 or other fluorescent dyes that have the similar fluorescence spectra (to Cy3) such asTF3 dyes.

Protocol

SDS

COA

Catalog	Size	Price	Quantity
5261	50 mg	Price

Calculators

Common stock solution preparation

Table 1. Volume of DMF needed to reconstitute specific mass of FMOC-Lys(QSY-7)-OH 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	99.187 µL	495.933 µL	991.867 µL	4.959 mL	9.919 mL
5 mM	19.837 µL	99.187 µL	198.373 µL	991.867 µL	1.984 mL
10 mM	9.919 µL	49.593 µL	99.187 µL	495.933 µL	991.867 µL

Molarity calculator

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

Mass (Calculate)		Molecular weight		Volume (Calculate)		Concentration (Calculate)		Moles
mg	÷	1008.2 g/mol	=	mL	x	mM	=	mmol

References

View all 10 references: Citation Explorer

In Situ Protease Secretion Visualization and Metastatic Lymph Nodes Imaging via a Cell Membrane-Anchored Upconversion Nanoprobe.

Authors:

Fang, Yanyun and Li, Yuetong and Li, Yuyi and He, Rong and Zhang, Yue and Zhang, Xiaobo and Liu, Ying and Ju, Huangxian

Journal:

Analytical chemistry (2021): 7258-7265

Activatable Photodynamic Therapy with Therapeutic Effect Prediction Based on a Self-correction Upconversion Nanoprobe.

Authors:

Li, Yuyi and Zhang, Xiaobo and Zhang, Yue and Zhang, Yue and He, Yuling and Liu, Ying and Ju, Huangxian

Journal:

ACS applied materials & interfaces (2020): 19313-19323

Development of a FRET-Based Assay for Analysis of mAbs Internalization and Processing by Dendritic Cells in Preclinical Immunogenicity Risk Assessment.

Authors:

Wen, Yi and Cahya, Suntara and Zeng, Wei and Lin, Joanne and Wang, Xiaoli and Liu, Ling and Malherbe, Laurent and Siegel, Robert and Ferrante, Andrea and Kaliyaperumal, Arunan

Journal:

The AAPS journal (2020): 68

An Activatable Fluorescent γ-Polyglutamic Acid Complex for Sentinel Lymph Node Imaging.

Authors:

Hagimori, Masayori and Hatabe, Eri and Sano, Kohei and Miyazaki, Hirotaka and Sasaki, Hitoshi and Saji, Hideo and Mukai, Takahiro

Journal:

Biological & pharmaceutical bulletin (2017): 297-302

Visible Multiphoton Dissociation of Chromophore-Tagged Peptides.

Authors:

Bouakil, Mathilde and Kulesza, Alexander and Daly, Steven and MacAleese, Luke and Antoine, Rodolphe and Dugourd, Philippe

Journal:

Journal of the American Society for Mass Spectrometry (2017): 2181-2188

Physical properties

Molecular weight	1008.20
Solvent	DMF

Spectral properties

Absorbance (nm)	561
Correction factor (280 nm)	0.22
Extinction coefficient (cm ^-1 M ^-1)	90000 ¹

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	12171501

Documents

Protocol
Safety Data Sheet
Certificate of Analysis

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Page updated on November 23, 2025