mPEG-Amine

Chemical structure

le="color:#333333;font-family:Arial;">
n = ca. 120
CH3O(C2H4O)n-CH2CH2-NH2
Mw ca. 5000
CAS No.: 80506-64-5
Polydispersity < 1.05
diol content of mPEG starting material < 1%

Product identification
ω-methoxy-a-(2-aminoethyl)poly(oxy-1,2-ethanediyl) 
Monomethoxy polyethylene glycol-amine 
mPEG-amine

Physical properties
Melting point :65-67℃
Appearance: White to off-white powder
Storage Temperature: -10~-20 ℃
Solubility: soluble in water, methanol, ethanol, Dichloromethane; insoluble in ether

Key Specifications

Specification	Characteristic	Requirement/Method
Physical	Color/Appearance	White Powder  (Visual)
	Foreign Material	No Visually Detectable  (Visual)
Chemical	Identity	Conforms to Standard (NMR)
	Substitution	≥ 95% (NMR)
	Purity	≥ 95% (HPLC)
	Molecular Weight (PEG raw material)	5,000 ± 500 Da (MALDI or GFC)
	Polydispersity (PEG raw material)	≤1.05 (GFC)
	moisture content	<0.1%

Stability & Storage
mPEG-amine can be stored in an inert atmosphere for ca 12 months from the date of manufacture in the unopened original container at -10°C to -20°C. The product has to be re-tested after 1 year.