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8.51021 EMD Millipore

N₃-(PEG)₇-COOH (33 atoms)

N₃-(PEG)₇-COOH (33 atoms) Novabiochem®. CAS 846549-37-9, molar mass 554.59 g/mol., Novabiochem®

Synonym: O-(2-Azidoethyl)-O'-(N-diglycolyl-2-aminoethyl)-heptaethyleneglycol

  • CAS Number 846549-37-9

  • Linear Formula C₂₂H₄₂N₄O₁₂

  • Molecular Weight 554.59 g/mol

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Properties

brand family   Novabiochem
packaging   1 g in Glass bottle (8510210001)
shipped in   ambient
storage temp.   Store at +2°C to +8°C.
specifications   Colour (visual): slight yellow to yellow
  Appearance of substance (visual): oil
  Assay (HPLC, area%): ≥ 97.0 % (a/a)

Description

Background information

This building block is prepared from highly purified PEG to ensure homogeneous products free from contaminating PEG oligomers. In this derivative the azido group acts as an orthogonally masked amine; it is stable to both TFA and piperidine but is easily converted to an amine by treatment with phosphines or thiols.

For a similar spacer, see reference [1].

This material is now only available as an oil.

The product number for this product was previously 01-63-0103.

To obtain a certificate of analysis (CoA) of a lot that begins with the letter "A", please select the option in the right hand menu "Request a COA for Lot#s starting with A".

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Safety & Documentation

Safety Information

HS Code 
2927 00 00
Storage class 
10 - 13 Other liquids and solids
WGK 
WGK 3 highly water endangering
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