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CY5-SE (triethylamine salt)

Cy5-SE (Cy5 NHS Ester) triethylamine salt is a reactive dye for the labeling of amino-groups in peptides, proteins, and oligonucleotides. Cy5-SE triethylamine salt is ideal for very cost-efficient labeling of soluble proteins, as well as all kinds of peptides and oligonucleotides Ex=649 nm; Em=670 nm) [1].

Product Specifications

CAS Number

[1497420-70-8]

Product Name Alternative

Cy5 NHS Ester (triethylamine salt) ; Sulfo-Cyanine5 Succinimidyl Ester (triethylamine salt)

UNSPSC

12171500

Hazard Statement

H302, H315, H319, H335

Target

Fluorescent Dye

Type

Dye Reagents

Related Pathways

Others

Field of Research

Others

Assay Protocol

https://www.medchemexpress.com/cy5-se-triethylamine-salt.html

Purity

98.0

Solubility

DMSO : 125 mg/mL (ultrasonic) |H2O : ≥ 5.88 mg/mL

Smiles

O=C(CCCCCN1C2=CC=C(S(=O)(O)=O)C=C2C(C)(C)/C1=C\C=C\C=C\C3=[N+](CC)C4=C(C3(C)C)C=C(S(=O)([O-])=O)C=C4)ON5C(CCC5=O)=O.CCN(CC)CC

Molecular Formula

C43H58N4O10S2

Molecular Weight

855.07

Precautions

H302, H315, H319, H335

References & Citations

[1]Jeon HY, et al. Array-Based High-Throughput Analysis of Silk-Elastinlike Protein Polymer Degradation and C-Peptide Release by Proteases. Anal Chem. 2016;88 (10) :5398-5405.

Shipping Conditions

Blue Ice

Storage Conditions

-20°C (Powder, sealed storage, away from moisture and light)

Scientific Category

Dye Reagents

Clinical Information

No Development Reported

Citation 01

Adv Sci (Weinh) . 2023 Aug;10 (24) :e2301592.|Int J Biol Macromol. 2024 Jul 17:133957.|ACS Appl Mater Interfaces. 2019 Jan 16;11 (2) :1766-1781.|ACS Nano. 2024 Aug 27;18 (34) :23154-23167.|ACS Nano. 2025 May 27;19 (20) :19274-19286.|ACS Omega. 2025 Oct 30;10 (44) :52931-52943.|Adv Funct Mater. 2023 Sep 15.|Adv Healthc Mater. 2025 May 5:e2500511.|Adv Mater. 2025 Jun 13:e2502598.|Adv Sci (Weinh) . 2025 Apr 3:e2415689.|Biomacromolecules. 2019 Jan 14;20 (1) :469-477.|Biomacromolecules. 2025 May 12;26 (5) :3044-3058.|Bioorg Med Chem. 2025 Nov 1:129:118319.|Carbohyd Polym. 2020 May 1;235:115983.|Foods. 2025 Oct 2;14 (19) :3410.|Genomics. 2023 Sep;115 (5) :110703.|Int J Mol Sci. 2025 Feb 13;26 (4) :1594.|J Nanobiotechnology. 2018 Mar 16;16 (1) :23.|J Nanobiotechnology. 2024 Sep 19;22 (1) :578.|J Nanobiotechnology. 2025 May 24;23 (1) :374.|J Pharm Anal. 2025 Apr 14.|J Virol. 2024 May 14;98 (5) :e0035024.|Mol Pharm. 2024 Jul 1;21 (7) :3425-3433.|Molecules. 2024 Sep 10;29 (18) :4293.|Nano Res. 2025 Sep 29.|Nano Res. 29 June 2021.|Nano Today. 2025 Oct.|Research Square Preprint. 2021 Jan.

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