ChemicalBook > CAS DataBase List > Heptaethylene Glycol Monomethyl Ether

Heptaethylene Glycol Monomethyl Ether

Product Name
Heptaethylene Glycol Monomethyl Ether
CAS No.
4437-01-8
Chemical Name
Heptaethylene Glycol Monomethyl Ether
Synonyms
2,5,8,11,14,17,20-Heptaoxadocosan-22-ol;mPEG7;MPEG7-OH;m-PEG7-alcohol;926630;MEO-PEG(7)-OH;HO-(CH2CH2O)7-Me;Methyl-PEG7-alcohol;MONOMETHOXY-PEG (N=7);METHOXYHEPTAETHYLENE GLYCOL
CBNumber
CB6362485
Molecular Formula
C15H32O8
Formula Weight
340.41
MOL File
4437-01-8.mol
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Heptaethylene Glycol Monomethyl Ether Property

Boiling point:
150 °C(Press: 0.005 Torr)
Density 
1.09
refractive index 
1.4540-1.4580
storage temp. 
-20°C
form 
clear liquid
pka
14.36±0.10(Predicted)
color 
Colorless to Light yellow to Light orange
InChI
InChI=1S/C15H32O8/c1-17-4-5-19-8-9-21-12-13-23-15-14-22-11-10-20-7-6-18-3-2-16/h16H,2-15H2,1H3
InChIKey
AGWKUHGLWHMYTG-UHFFFAOYSA-N
SMILES
C(O)COCCOCCOCCOCCOCCOCCOC
CAS DataBase Reference
4437-01-8(CAS DataBase Reference)
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Safety

WGK Germany 
3
HS Code 
29094990
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H302Harmful if swallowed

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
41749
Product name
O-Methyl-heptaethylene glycol
Purity
≥95% (oligomer purity)
Packaging
1G
Price
$130.2
Updated
2025/07/31
TCI Chemical
Product number
H1046
Product name
Heptaethylene Glycol Monomethyl Ether
Purity
>97.0%(GC)
Packaging
1g
Price
$108
Updated
2025/07/31
TCI Chemical
Product number
H1046
Product name
Heptaethylene Glycol Monomethyl Ether
Purity
>97.0%(GC)
Packaging
5g
Price
$373
Updated
2025/07/31
Frontier Specialty Chemicals
Product number
JK441840
Product name
Heptaethylene Glycol Monomethyl Ether
Purity
97%
Packaging
1g
Price
$375
Updated
2021/12/16
AK Scientific
Product number
Y4948
Product name
Heptaethylene Glycol Monomethyl Ether
Packaging
5g
Price
$359
Updated
2021/12/16
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Heptaethylene Glycol Monomethyl Ether Chemical Properties,Usage,Production

Description

m-PEG7-alcohol is a PEG linker containing a hydroxyl group. The hydroxyl group enables further derivatization or replacement with other reactive functional groups. The hydrophilic PEG spacer increases solubility in aqueous media.

Uses

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

Definition

The presence of heptaethylene glycol monomethyl ether (HGME) as a process impurity and degradation impurity in the final purified form of Benzonatate is a determining factor in establishing the safety, identity, strength, purity, and quality of the drug substance. Owing to the cutaneous toxicity of HGME in the BNZ drug substance, a suitable and selective analysis method is required for its quantitation[1].

reaction suitability

reagent type: cross-linking reagent

Synthesis

112-60-7

74654-05-0

4437-01-8

A 60% NaH dispersion in mineral oil was added in batches to a stirred solution of triacetylene glycol (35.7 mmol) in anhydrous DMF (25.7 mL) under nitrogen protection, and the mixture was stirred for 1 hour at room temperature. Subsequently, a solution of 2-(2-(2-methoxyethoxy)ethoxy)ethyl methanesulfonate (23.36 mmol) in anhydrous DMF (4 mL) was added in a single addition to the resulting salt, and stirring was continued for 3.5 hours at room temperature. The progress of the reaction was monitored by thin layer chromatography (TLC with 12% unfolding agent ratio). Upon completion of the reaction, the reaction mixture was diluted with an equal volume of 1N HCl, extracted with ethyl acetate (2 x 20 mL) and the organic phase discarded. The aqueous phase was extracted and post-treated to give heptaglycol monomethyl ether in 82-84% yield.

IC 50

PEGs

References

[1] Lakshmi Narasimha Rao Katakam, Vishnu Murthy Marisetti, Santhosh Kumar Ettaboina. “Development and validation of LC–MS method for the determination of heptaethylene glycol monomethyl ether in benzonatate bulk drugs.” Biomedical Chromatography 35 7 (2021).

Heptaethylene Glycol Monomethyl Ether Preparation Products And Raw materials

Raw materials

Preparation Products

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View Lastest Price from Heptaethylene Glycol Monomethyl Ether manufacturers

LAURENT
Product
mPEG7-OH 4437-01-8
Price
US $4788.00/kg
Min. Order
0.5kg
Purity
98%
Supply Ability
300kg
Release date
2025-11-15
XIAMEN SINOPEG BIOTECH CO., LTD.
Product
2,5,8,11,14,17,20-heptaoxadocosan-22-ol 4437-01-8
Price
US $0.00-0.00/g
Min. Order
1g
Purity
98%
Supply Ability
1g/bottle, 10g/bottle, 100g/bottle
Release date
2025-09-10
Hebei Chuanghai Biotechnology Co., Ltd
Product
HEPTAETHYLENE GLYCOL MONOMETHYL ETHER 4437-01-8
Price
US $0.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
500000kg
Release date
2024-10-30

4437-01-8, Heptaethylene Glycol Monomethyl Ether Related Search:


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  • MPEG7-OH
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  • 2,5,8,11,14,17,20-Heptaoxadocosan-22-ol
  • 3,6,9,12,15,18,21-heptaoxadocosan-1-ol
  • m-PEG7-alcohol
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  • 926630
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  • 2,5,8,11,14,17,20-Heptaoxadocosan-22-ol 97%min
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  • Monofunctional Ethylene Glycols
  • Ethylene Glycols & Monofunctional Ethylene Glycols
  • Peptide Synthesis
  • Peptide PEGylation
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  • Chemical Biology
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