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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HCID 178594792Generated: November 5, 2026

Amino-PEG8-Amine

NH2-PEG8-NH2 · Amino-PEG8-Amine · H2N-PEG9-NH2 (HQ) · H2N-dPEG8-CH2CH2NH2 · 1,26-Diamino-3,6,9,12,15,18,21,24-octaoxahexacosane · 3,6,9,12,15,18,21,24-Octaoxahexacosane-1,26-diamine · H2N-PEG8-CH2CH2NH2/3,6,9,12,15,18,21,24-Octaoxahexacosane-1,26-diamine · 2-[2-[2-[2-[2-[2-[2-[2-(2-aminoethoxy)ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethanamine

https://huagongshe.com/en/chemical/178594792

Amino-PEG8-Amine molecular structure

Identifiers & Physical Properties

CAS No.82209-36-7
Molecular formulaC18H40N2O8
Average molar mass412.5 g/mol
Monoisotopic mass412.27846624 g/mol
SMILESNCCOCCOCCOCCOCCOCCOCCOCCOCCN
InChIKeyQNNWDQWXZAXENQ-UHFFFAOYSA-N
PubChem CID58177642

Chemical & Physical Properties

XLogP-2.8
Topological polar surface area126
Hydrogen bond donors2
Hydrogen bond acceptors10
Rotatable bonds25
Heavy atoms28
Formal charge0
Complexity252
Storage conditions-20°C
SolubilitySoluble in Water, DMSO, DCM, DMF
Physical stateLiquid
ColorColorless to light yellow
InChIInChI=1S/C18H40N2O8/c19-1-3-21-5-7-23-9-11-25-13-15-27-17-18-28-16-14-26-12-10-24-8-6-22-4-2-20/h1-20H2
InChIKeyQNNWDQWXZAXENQ-UHFFFAOYSA-N
SMILESC(N)COCCOCCOCCOCCOCCOCCOCCOCCN
UNSPSC Code51171641
NACRESNA.23
GHS pictogramGHS07
Signal wordWarning
GHS hazard statementsH315-H319-H335
GHS precautionary statementsP264-P280-P302+P352-P321-P332+P313-P362-P305+P351+P338-P337+P313-P261-P271-P304+P340-P312-P403+P233-P405-P501
Water hazard class (WGK)WGK 3
Storage class11 - Combustible Solids
Hazard classAcute Tox. 4 OralEye Irrit. 2Skin Irrit. 2

Safety & Regulations

Water hazard class (WGK)WGK 3
Signal wordWarning
GHS pictogramGHS07
Storage class11 - Combustible Solids
GHS hazard statementsH315-H319-H335
Hazard classAcute Tox. 4 OralEye Irrit. 2Skin Irrit. 2
GHS precautionary statementsP264-P280-P302+P352-P321-P332+P313-P362-P305+P351+P338-P337+P313-P261-P271-P304+P340-P312-P403+P233-P405-P501

Applications & Uses

Description

Amino-PEG8-Amine is a conjugation linker containing two amine (NH2) groups. The hydrophilic PEG spacer increases solubility in aqueous media. The amino groups are reactive with carboxylic acids, activated NHS esters, carbonyls (ketone, aldehyde) etc.

Uses

Amino-PEG8-amine is a PEG-based (8 units) PROTAC linker can be used in the synthesis of PROTACs[1].

Uses

Applications may include: bioconjugation, drug delivery, PEG hydrogel, crosslinker, and surface functionalization

General Description

Amino-PEG8-amine (CAS 82209-36-7), also known as H₂N-PEG8-CH₂CH₂NH₂ and NH₂-PEG8-NH₂, is a high-purity, symmetrical, homobifunctional, discrete PEG linker. Its molecular weight is 412.52. It is soluble in water, DMSO, DCM and DMF. At room temperature, it is typically a pale yellow to colourless viscous liquid or a low-melting-point waxy solid.