N-(Ac-PEG3)-N'-(azide-PEG3)-Cy7
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    WARNING: This product is for research use only, not for human or veterinary use.

MedKoo CAT#: 572345

CAS#: 2107273-00-5

Description: N-(Ac-PEG3)-N'-(azide-PEG3)-Cy7 is a Cy7 labeled near infrared fluorescent (NIF) PEG derivative containing an azide group, which enables Click Chemistry. The hydrophilic PEG spacer increases solubility in aqueous media. This reagent can be utilized to produce Cy7-labeled biomolecules for potential in vivo research and drug design related experiments.


Chemical Structure

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N-(Ac-PEG3)-N'-(azide-PEG3)-Cy7
CAS# 2107273-00-5

Theoretical Analysis

MedKoo Cat#: 572345
Name: N-(Ac-PEG3)-N'-(azide-PEG3)-Cy7
CAS#: 2107273-00-5
Chemical Formula: C43H58ClN5O7
Exact Mass: 791.40
Molecular Weight: 792.420
Elemental Analysis: C, 65.18; H, 7.38; Cl, 4.47; N, 8.84; O, 14.13

Price and Availability

Size Price Availability Quantity
1mg USD 330
5mg USD 900
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Synonym: N-(Ac-PEG3)-N'-(azide-PEG3)-Cy7

IUPAC/Chemical Name: 1-(2-(2-(2-acetoxyethoxy)ethoxy)ethyl)-2-((1E,3E,5E)-7-((E)-1-(2-(2-(2-(2-azidoethoxy)ethoxy)ethoxy)ethyl)-3,3-dimethylindolin-2-ylidene)hepta-1,3,5-trien-1-yl)-3,3-dimethyl-3H-indol-1-ium chloride

InChi Key: HVDWUPHUQBHZMT-UHFFFAOYSA-M

InChi Code: InChI=1S/C43H58N5O7.ClH/c1-35(49)55-34-33-54-32-29-52-26-23-48-39-18-14-12-16-37(39)43(4,5)41(48)20-10-8-6-7-9-19-40-42(2,3)36-15-11-13-17-38(36)47(40)22-25-51-28-31-53-30-27-50-24-21-45-46-44;/h6-20H,21-34H2,1-5H3;1H/q+1;/p-1

SMILES Code: CC1(C)C(/C=C/C=C/C=C/C=C2N(CCOCCOCCOCCN=[N+]=[N-])C(C=CC=C3)=C3C/2(C)C)=[N+](CCOCCOCCOC(C)=O)C4=CC=CC=C41.[Cl-]

Appearance: Solid powder

Purity: >97% (or refer to the Certificate of Analysis)

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Storage Condition: Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).

Solubility: Soluble in DMSO, DMF, DCM

Shelf Life: >3 years if stored properly

Drug Formulation: This drug may be formulated in DMSO

Stock Solution Storage: 0 - 4 C for short term (days to weeks), or -20 C for long term (months).

HS Tariff Code: 2934.99.03.00

More Info: Solubility: DMSO, DMF, DCM, low solubility in water Excitation maximum (nm): 750 Extinction coefficient and excitation maximum, Lmol-1cm-1: 199000 Emission maximum (nm): 773

Biological target:
In vitro activity:
In vivo activity:

Preparing Stock Solutions

The following data is based on the product molecular weight 792.42 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

Recalculate based on batch purity %
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 1.15 mL 5.76 mL 11.51 mL
5 mM 0.23 mL 1.15 mL 2.3 mL
10 mM 0.12 mL 0.58 mL 1.15 mL
50 mM 0.02 mL 0.12 mL 0.23 mL
Formulation protocol:
In vitro protocol:
In vivo protocol:

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4: Ruan S, Wan J, Fu Y, Han K, Li X, Chen J, Zhang Q, Shen S, He Q, Gao H. PEGylated fluorescent carbon nanoparticles for noninvasive heart imaging. Bioconjug Chem. 2014 Jun 18;25(6):1061-8. doi: 10.1021/bc5001627. Epub 2014 May 22. PubMed PMID: 24852402.

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6: Okuda T, Kobayashi Y, Yanamoto S, Okamoto H. PEG conjugation of a near-infrared fluorescent probe for noninvasive dual imaging of lung deposition and gene expression by pulmonary gene delivery. J Drug Target. 2012 Nov;20(9):801-12. doi: 10.3109/1061186X.2012.722639. Epub 2012 Sep 26. PubMed PMID: 23009266.