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8.51021

N3-(PEG)7-COOH (33 atoms)

Novabiochem®

Synonym(s):

N₃-(PEG)₇-COOH (33 atoms), O-(2-Azidoethyl)-O′-(N-diglycolyl-2-aminoethyl)-heptaethyleneglycol

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About This Item

Empirical Formula (Hill Notation):
C22H42N4O12
CAS Number:
846549-37-9
Molecular Weight:
554.59
UNSPSC Code:
12352106
NACRES:
NA.22
MDL number:
MFCD10001327
Assay:
≥97.0% (HPLC)
Form:
oil
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Quality Segment

400

product line

Novabiochem®

assay

≥97.0% (HPLC)

form

oil

reaction suitability

reaction type: click chemistry

manufacturer/tradename

Novabiochem®

application(s)

peptide synthesis

storage temp.

2-8°C

SMILES string

[N+](=[N-])=NCCOCCOCCOCCOCCOCCOCCOCCOCCNC(=O)COCC(=O)O

InChI

1S/C22H42N4O12/c23-26-25-2-4-31-6-8-33-10-12-35-14-16-37-18-17-36-15-13-34-11-9-32-7-5-30-3-1-24-21(27)19-38-20-22(28)29/h1-20H2,(H,24,27)(H,28,29)

InChI key

WWDNBBVPYDZICO-UHFFFAOYSA-N

General description

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.

Associated Protocols and Technical Articles
Guide to Selection of Orthogonally-Protected Building Blocks for Fmoc SPPS

Literature references
[1] J. Mack, et al. (1999) J. Peptide Sci., 6, 135.

Analysis Note

Color (visual): slight yellow to yellow
Appearance of substance (visual): oil
Assay (HPLC, area%): ≥ 97.0 % (a/a)

Other Notes

Replaces: 01-63-0103

Legal Information

Novabiochem is a registered trademark of Merck KGaA, Darmstadt, Germany

pictograms

Exclamation mark
GHS07

signalword

Warning

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

10 - Combustible liquids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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