Methoxypolyethylene glycols
- CAS No.
- 9004-74-4
- Chemical Name:
- Methoxypolyethylene glycols
- Synonyms
- MPEG;MPEG-OH;METHOXYPOLYETHYLENE GLYCOL;MEO-PEG-OH;POLYETHYLENE GLYCOL MONOMETHYL ETHER;MEO-PEG-COOH;POLYETHYLENE GLYCOL MONOMETHYL ETHER 550;MPEG 500;MPEG 2000;MPEG 5000
- CBNumber:
- CB6228002
- Molecular Formula:
- C5H12O3
- Molecular Weight:
- 120.14698
- MDL Number:
- MFCD00084416
- MOL File:
- 9004-74-4.mol
- MSDS File:
- SDS
| Melting point | 60-64 °C |
|---|---|
| Boiling point | >200°C/760mmHg |
| Density | 1.094 g/mL at 25 °C |
| vapor density | >1 (vs air) |
| vapor pressure | 0.05 mm Hg ( 20 °C) |
| refractive index |
n |
| Flash point | 268 °C |
| storage temp. | -20°C |
| solubility | H2O: 50 mg/mL at 25 °C, clear, colorless |
| form | semisolid |
| color | White to pale yellow |
| Specific Gravity | 1.094 |
| PH | 5.5-7.0 (25℃, 50mg/mL in H2O) |
| Odor | Mild odor |
| Viscosity | 10.5cs (99C) |
| Viscosity | 4.1cs (99C) |
| Viscosity | 63cs (99C) |
| Viscosity | 7.5cs (99C) |
| Water Solubility | Slightly miscible with water. |
| λmax |
λ: 260 nm Amax: 0.06 λ: 280 nm Amax: 0.03 |
| α-end | methoxy |
| Ω-end | hydroxyl |
| Stability | Stable. Incompatible with strong oxidizing agents, strong acids, strong bases. |
| InChIKey | XNWFRZJHXBZDAG-UHFFFAOYSA-N |
| LogP | -0.800 (est) |
| EWG's Food Scores | 1-3 |
| FDA UNII |
METHOXY PEG-40 (6AXS45P1QU) PEG-4 METHYL ETHER (3S6PWQ487V) METHOXY PEG-20 (77U9H6E11K) METHOXY PEG-16 (89ES36762B) PEG-7 METHYL ETHER (ENK4Y6S66X) |
| EPA Substance Registry System | Poly(oxy-1,2-ethanediyl), .alpha.-methyl-.omega.-hydroxy- (9004-74-4) |
| UNSPSC Code | 12162002 |
| NACRES | NA.26 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |   GHS07,GHS08 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| Hazard statements | H372-H302-H319-H336-H335 | |||||||||
| Precautionary statements | P264-P280-P305+P351+P338-P337+P313P-P260-P264-P270-P314-P501-P264-P270-P301+P312-P330-P501-P261-P271-P304+P340-P312-P403+P233-P405-P501 | |||||||||
| Safety Statements | 24/25-22 | |||||||||
| WGK Germany | 3 | |||||||||
| RTECS | PE8271000 | |||||||||
| F | 3 | |||||||||
| TSCA | Yes | |||||||||
| HS Code | 29091990 | |||||||||
| NFPA 704 |
|
Methoxypolyethylene glycols price More Price(77)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 71578 | Poly(ethylene glycol) methyl ether BioUltra, 500 | 9004-74-4 | 250g | $152 | 2024-03-01 | Buy |
| Sigma-Aldrich | 71578 | Poly(ethylene glycol) methyl ether BioUltra, 500 | 9004-74-4 | 1kg | $233 | 2024-03-01 | Buy |
| Sigma-Aldrich | 202487 | Poly(ethylene glycol) methyl ether average Mn 550 | 9004-74-4 | 5g | $53.4 | 2024-03-01 | Buy |
| Sigma-Aldrich | 202487 | Poly(ethylene glycol) methyl ether average Mn 550 | 9004-74-4 | 250g | $95.2 | 2024-03-01 | Buy |
| TCI Chemical | P2183 | Polyethylene Glycol Monomethyl Ether 400 | 9004-74-4 | 100g | $26 | 2024-03-01 | Buy |
Methoxypolyethylene glycols Chemical Properties,Uses,Production
Description
m-PEG36-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.
Chemical Properties
varies from viscous liquid to white flakes, depending
Uses
Methoxypolyethylene Glycol of with an average molecular mass of 350. Methoxypolyethylene Glycol (MPEG) is used in various applications such as micelles for drug delivery as well as in modifications of therapeutic proteins to improve their pharmacokinetics.
Uses
enteric coating controlled release and enteric release coatings
Uses
Methoxypolyethylene glycol 350 has been used in a study to assess the synthesis of a new class of thermosensitive micellar cyclotriphosphazenes. It has also been used in a study to investigate synthesis of a new amphiphilic poly(organophosphazene) by stepwise nucleophilic substitution.
Definition
ChEBI: A poly(ethylene glycol) terminated with a methyl group at one end.
brand name
Carbowax Sentry Methoxypolyethylene Glycol (Union Carbide).
General Description
It is a Polyethylene glycol (PEG) macromer with a reactive chain end consisting of methyl ether. Etherification of the PEG chain ends can be undertaken in basic conditions by reacting it with alkyl halides. mPEG can undergo cross linking to form hydrogels; polymerization can be initiated by redox reaction or free radical initiator.
Solubility in organics
Acetone, chloroform, cyclohexanone, dichloromethane, DMF, MEK, toluene (hot), water
Toxics Screening Level
The initial threshold screening level (ITSL) for polyethylene glycol methyl ether , also known as dowanol TMH, is 13 μg/m3 based on an annual averaging time.
Methoxypolyethylene glycols Preparation Products And Raw materials
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| XIAMEN SINOPEG BIOTECH CO., LTD. | +86-0592-7761068 +8617350879715 | changaiwei@sinopeg.com | China | 176 | 58 |
| Hebei Chuanghai Biotechnology Co., Ltd | +8615531157085 | abby@chuanghaibio.com | China | 8808 | 58 |
| Hebei Mujin Biotechnology Co.,Ltd | +86 13288715578 +8613288715578 | sales@hbmojin.com | China | 12811 | 58 |
| Hebei Chuanghai Biotechnology Co,.LTD | +86-13131129325 | sales1@chuanghaibio.com | China | 5869 | 58 |
| Henan Fengda Chemical Co., Ltd | +86-371-86557731 +86-13613820652 | info@fdachem.com | China | 20235 | 58 |
| Hebei Zhuanglai Chemical Trading Co.,Ltd | +8613343047651 | admin@zlchemi.com | China | 3692 | 58 |
| Capot Chemical Co.,Ltd. | +86-（0）57185586718 +86-13336195806 | sales@capot.com | China | 29730 | 60 |
| 9i LLC | +18039569191 | MWan@NiNeiLab.com | United States | 418 | 58 |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | info@tianfuchem.com | China | 21628 | 55 |
| Hefei TNJ Chemical Industry Co.,Ltd. | +86-0551-65418679 +8618949832763 | info@tnjchem.com | China | 2986 | 55 |
Related Qustion
- Q:What is Methoxypolyethylene glycols?
- A:Methoxypolyethylene glycols (mPEG) are addition polymers of ethylene oxide and methanol with the molecular formula CH3O-(CH2-C....
- Mar 15，2024
View Lastest Price from Methoxypolyethylene glycols manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2025-04-23 | Methoxypolyethylene glycols
9004-74-4
|
US $10.00 / kg | 1kg | 99% | 100 mt | Hebei Chuanghai Biotechnology Co., Ltd | |
 |
2025-04-15 | Methoxypolyethylene glycols
9004-74-4
|
US $10.00 / kg | 1kg | 99% | 5000 | Hebei Zhuanglai Chemical Trading Co.,Ltd | |
 |
2025-03-31 | Methoxypoly(ethylene glycol)
9004-74-4
|
US $0.00-0.00 / ASSAYS | 1化验 | 98% | 10kg | XIAMEN SINOPEG BIOTECH CO., LTD. |
-
- Methoxypolyethylene glycols
9004-74-4
- US $10.00 / kg
- 99%
- Hebei Chuanghai Biotechnology Co., Ltd
-
- Methoxypolyethylene glycols
9004-74-4
- US $10.00 / kg
- 99%
- Hebei Zhuanglai Chemical Trading Co.,Ltd
-
- Methoxypoly(ethylene glycol)
9004-74-4
- US $0.00-0.00 / ASSAYS
- 98%
- XIAMEN SINOPEG BIOTECH CO., LTD.