MedKoo Cat#: 572419 | Name: Hydroxy-PEG3-NHS

Description:

WARNING: This product is for research use only, not for human or veterinary use.

Hydroxy-PEG3-NHS is a PEG derivative containing a hydroxyl group with an NHS ester. The hydrophilic PEG spacer increases solubility in aqueous media. The hydroxyl group enables further derivatization or replacement with other reactive functional groups. The NHS ester can be used to label the primary amines (-NH2) of proteins, amine-modified oligonucleotides, and other amine-containing molecules.

Chemical Structure

Hydroxy-PEG3-NHS
Hydroxy-PEG3-NHS
CAS#1807518-71-3

Theoretical Analysis

MedKoo Cat#: 572419

Name: Hydroxy-PEG3-NHS

CAS#: 1807518-71-3

Chemical Formula: C13H21NO8

Exact Mass: 319.1267

Molecular Weight: 319.31

Elemental Analysis: C, 48.90; H, 6.63; N, 4.39; O, 40.08

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Synonym
Hydroxy-PEG3-NHS
IUPAC/Chemical Name
2,5-dioxopyrrolidin-1-yl 3-(2-(2-(2-hydroxyethoxy)ethoxy)ethoxy)propanoate
InChi Key
KQGZCLFKXYOVGS-UHFFFAOYSA-N
InChi Code
InChI=1S/C13H21NO8/c15-4-6-20-8-10-21-9-7-19-5-3-13(18)22-14-11(16)1-2-12(14)17/h15H,1-10H2
SMILES Code
O=C(ON1C(CCC1=O)=O)CCOCCOCCOCCO
Appearance
Solid powder
Purity
>90% (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
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

Preparing Stock Solutions

The following data is based on the product molecular weight 319.31 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
1: Brown A, Patel S, Ward C, Lorenz A, Ortiz M, DuRoss A, Wieghardt F, Esch A, Otten EG, Heiser LM, Korolchuk VI, Sun C, Sarkar S, Sahay G. PEG-lipid micelles enable cholesterol efflux in Niemann-Pick Type C1 disease-based lysosomal storage disorder. Sci Rep. 2016 Aug 30;6:31750. doi: 10.1038/srep31750. PubMed PMID: 27572704; PubMed Central PMCID: PMC5004151. 2: Saifer MG, Williams LD, Sobczyk MA, Michaels SJ, Sherman MR. Selectivity of binding of PEGs and PEG-like oligomers to anti-PEG antibodies induced by methoxyPEG-proteins. Mol Immunol. 2014 Feb;57(2):236-46. doi: 10.1016/j.molimm.2013.07.014. Epub 2013 Nov 5. PubMed PMID: 24200843. 3: Garay RP, El-Gewely R, Armstrong JK, Garratty G, Richette P. Antibodies against polyethylene glycol in healthy subjects and in patients treated with PEG-conjugated agents. Expert Opin Drug Deliv. 2012 Nov;9(11):1319-23. doi: 10.1517/17425247.2012.720969. Epub 2012 Aug 30. PubMed PMID: 22931049.