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ChemicalBook--->CAS DataBase List--->1246189-43-4

1246189-43-4

1246189-43-4 Structure

1246189-43-4 Structure
IdentificationBack Directory
[Name]

HOOC-PEG7-CH2CH2COOH
[CAS]

1246189-43-4
[Synonyms]

Bis-PEG8-COOH
HOOC-PEG7-CH2CH2COOH
HOOCCH2CH2O-PEG7-CH2CH2COOH
4,7,10,13,16,19,22,25-Octaoxaoctacosanedioic acid
4,7,10,13,16,19,22,25-Octaoxaoctacosane-1,28-dioic Acid
[Molecular Formula]

C20H38O12
[MDL Number]

MFCD29917781
[MOL File]

1246189-43-4.mol
[Molecular Weight]

470.51
Chemical PropertiesBack Directory
[Boiling point ]

601.8±55.0 °C(Predicted)
[density ]

1.179±0.06 g/cm3(Predicted)
[storage temp. ]

Sealed in dry,2-8°C
[form ]

Solid
[pka]

3.97±0.10(Predicted)
[color ]

White to off-white
Safety DataBack Directory
[Symbol(GHS) ]


GHS07
[Signal word ]

Warning
[Hazard statements ]

H302-H315-H319-H335
[Precautionary statements ]

P261-P280-P301+P312-P302+P352-P305+P351+P338
Hazard InformationBack Directory
[Description]

Bis-PEG8-acid is a PEG linker containing terminal carboxylic acid groups. The hydrophilic PEG spacer increases solubility in aqueous media. The terminal carboxylic acids can react with primary amine groups in the presence of activators (e.g. EDC, or HATU) to form a stable amide bond.
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