Sulfo-Cy5 carboxylic acid potassium

Cat. No.: HY-D1374 Purity: 95.0%: Data Sheet
COA

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Sulfo-Cy5 carboxylic acid potassium is a water-soluble, inactive Cy5 carboxylic acid.

For research use only. We do not sell to patients.

Size	Stock	Quantity
Solid + Solvent (Highly Recommended)
10 mM * 1 mL in DMSO ready for reconstitution	In-stock	Estimated Time of Arrival: December 31
Solution
10 mM * 1 mL in DMSO	In-stock	Estimated Time of Arrival: December 31
Solid
5 mg	In-stock	Estimated Time of Arrival: December 31
10 mg	In-stock	Estimated Time of Arrival: December 31
25 mg	In-stock	Estimated Time of Arrival: December 31
50 mg	In-stock	Estimated Time of Arrival: December 31
100 mg	In-stock	Estimated Time of Arrival: December 31
200 mg	Get quote
500 mg	Get quote

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Customer Review

Based on 40 publication(s) in Google Scholar

Other Forms of Sulfo-Cy5 carboxylic acid potassium:

40 Publications Citing Use of MCE Sulfo-Cy5 carboxylic acid potassium

In Vivo Imaging

Cell Imaging/Staining

Histological Imaging/Staining

: Sulfo-Cy5 carboxylic acid potassium purchased from MedChemExpress. Usage Cited in: ACS Nano. 2025 Dec 9;19(48):41368-41385. [Abstract]; Cy5-MTFGM (1-10 mg/mL; i.t.; i.v.). Ex vivo FL imaging of major tissues at different time points after injection with Cy5-labeled MTFGM.

: Sulfo-Cy5 carboxylic acid potassium purchased from MedChemExpress. Usage Cited in: Chem Eng J. 2025 Jan 7.; Fluorescence of bone marrow from mice sacrificed 24 h after intravenous injection of PBS, equivalent Cy5 dissolved in PBS, Cy5 labeled exosomes.

: Sulfo-Cy5 carboxylic acid potassium purchased from MedChemExpress. Usage Cited in: J Nanobiotechnology. 2025 Oct 14;23(1):675. [Abstract]; Cy5@CQM NPs (100 µL; C_Mn= 0.5 mM; intravenously injection). Immunofluorescence histology of lung tumors in mice at 30 min (left) and 2 h (right) p.i. of Cy5@CQM NPs. Dashed lines indicate tumor margins. Fluorescence labels: DAPI (blue), F4/80 (green), and Cy5@CQM NPs (red).

: Sulfo-Cy5 carboxylic acid potassium purchased from MedChemExpress. Usage Cited in: J Nanobiotechnology. 2025 Oct 14;23(1):675. [Abstract]; Cy5@CQM NPs (C_Mn= 0.1 mM; 1 h; 0.5-4 h). CLSM images of vesicle-mediated delivery from RAW264.7 cells to 4T1 cells, shown at various time points. Fluorescence labels: RAW264.7 cells and their extracellular vesicles (blue), 4T1 cells (green), and Cy5@CQM NPs (red). The white arrows indicate CQM NPs successfully delivered into 4T1 cells.

: Sulfo-Cy5 carboxylic acid potassium purchased from MedChemExpress. Usage Cited in: ACS Nano. 2023 May 9;17(9):8204-8222. [Abstract]; Cy5-HTSFcACE2 plasmid (5 μg/mL; 1-6 h). Nuclear localization and lysosomal escape of ACE2-CS-PRT@PM in PMVECs in hypoxia for the indicated periods (red, HTSFcACE2 plasmid labeled with Cy5; green, lysosome labeled with Lysotracker; blue, DAPI to stain the nuclei).

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Biological Activity
Purity & Documentation
References
Customer Review

Description

Sulfo-Cy5 carboxylic acid potassium is a water-soluble, inactive Cy5 carboxylic acid.

Molecular Weight

680.87

Formula

C₃₂H₃₇KN₂O₈S₂

CAS No.

1144107-82-3

Appearance

Solid

Color

Dark purple to black

SMILES

O=C(CCCCCN1C2=CC=C(S(=O)(O[K])=O)C=C2C(C)(C)/C1=C\C=C\C=C\C3=[N+](C)C4=C(C3(C)C)C=C(S(=O)([O-])=O)C=C4)O

Shipping

Room temperature in continental US; may vary elsewhere.

Storage

4°C, sealed storage, away from moisture and light

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture and light)

Solvent & Solubility

In Vitro:

DMSO : 25 mg/mL (36.72 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

Preparing
Stock Solutions

Concentration Solvent Mass	1 mg	5 mg	10 mg

1 mM	1.4687 mL	7.3435 mL	14.6871 mL
5 mM	0.2937 mL	1.4687 mL	2.9374 mL
10 mM	0.1469 mL	0.7344 mL	1.4687 mL

View the Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture and light). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

Molarity Calculator
Dilution Calculator

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

Concentration _(start) × Volume _(start) = Concentration _(final) × Volume _(final)

This equation is commonly abbreviated as: C₁V₁ = C₂V₂

Concentration _(start)

Volume _(start)

Concentration _(final)

Volume _(final)

In Vivo Dissolution Calculator

Please enter the basic information of animal experiments:

Dosage

mg/kg

Animal weight
(per animal)

Dosing volume
(per animal)

μL

Number of animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.

Calculation results:

Working solution concentration: mg/mL

Purity & Documentation

Purity: 95.0%

Select Batch:

Data Sheet (276 KB) SDS (252 KB)

COA (257 KB) HNMR (319 KB) MS (69 KB)

Handling Instructions (2659 KB)

References

[1]. Ji W, et al.Erythrocytes as Carriers of Immunoglobulin-Based Therapeutics. Acta Biomaterialia, 2020, 101, 422-435.

Complete Stock Solution Preparation Table

Optional Solvent	Concentration Solvent Mass	1 mg	5 mg	10 mg	25 mg

DMSO	1 mM	1.4687 mL	7.3435 mL	14.6871 mL	36.7177 mL
	5 mM	0.2937 mL	1.4687 mL	2.9374 mL	7.3435 mL
	10 mM	0.1469 mL	0.7344 mL	1.4687 mL	3.6718 mL
	15 mM	0.0979 mL	0.4896 mL	0.9791 mL	2.4478 mL
	20 mM	0.0734 mL	0.3672 mL	0.7344 mL	1.8359 mL
	25 mM	0.0587 mL	0.2937 mL	0.5875 mL	1.4687 mL
	30 mM	0.0490 mL	0.2448 mL	0.4896 mL	1.2239 mL