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Acid-PEG9-NHS ester - CAS 1895916-27-4

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Acid-PEG9-NHS ester is a PEG linker containing a carboxylic acid and an NHS ester. The hydrophilic PEG spacer increases solubility in aqueous media. The terminal carboxylic acid can react with primary amine groups in the presence of activators (e.g. EDC, or HATU) to form a stable amide bond. The NHS ester can be used to label the primary amines (-NH2) of proteins, amine-modified oligonucleotides, and other amine-containing molecules.

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Molecular Formula
C26H45NO15
Molecular Weight
611.64

Acid-PEG9-NHS ester

    • Specification
      • Related CAS
        1643594-31-3 (polymer)
        Purity
        ≥95%
        Solubility
        Soluble in DMSO
        Appearance
        Light Yellow or White Solid
        Storage
        Store at 2-8°C for short term (days to weeks) or -20°C for long term (months to years)
        Shipping
        Room temperature in continental US; may vary elsewhere.
        IUPAC Name
        3-[2-[2-[2-[2-[2-[2-[2-[2-[3-(2,5-dioxopyrrolidin-1-yl)oxy-3-oxopropoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]propanoic acid
        Synonyms
        Acid-C2-PEG9-NHS ester; COOH-PEG9-SPA; COOH-PEG9-NHS; 31-[(2,5-Dioxo-1-pyrrolidinyl)oxy]-31-oxo-4,7,10,13,16,19,22,25,28-nonaoxahentriacontan-1-oic acid; 4,7,10,13,16,19,22,25,28-Nonaoxahentriacontan-1-oic acid, 31-[(2,5-dioxo-1-pyrrolidinyl)oxy]-31-oxo-
    • Properties
      • Boiling Point
        685.1±65.0°C at 760 mmHg
        Density
        1.3±0.1 g/cm3
        InChI Key
        BJOKQEMLFQBOQZ-UHFFFAOYSA-N
        InChI
        InChI=1S/C26H45NO15/c28-23-1-2-24(29)27(23)42-26(32)4-6-34-8-10-36-12-14-38-16-18-40-20-22-41-21-19-39-17-15-37-13-11-35-9-7-33-5-3-25(30)31/h1-22H2,(H,30,31)
        Canonical SMILES
        C1CC(=O)N(C1=O)OC(=O)CCOCCOCCOCCOCCOCCOCCOCCOCCOCCC(=O)O
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Concentration (start) x Volume (start) = Concentration (final) x Volume (final)
It is commonly abbreviated as: C1V1 = C2V2

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* Total Molecular Weight:
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Tip: Chemical formula is case sensitive. C22H30N4O √ c22h30n40 ╳
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