If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf
81323
Poly(ethylene glycol) methyl ether
average MN 5,000, methoxy, hydroxyl
동의어(들):
Polyethylene glycol, Methoxy poly(ethylene glycol), Polyethylene glycol monomethyl ether, mPEG
크기 선택
About This Item
추천 제품
제품명
Poly(ethylene glycol) methyl ether, average Mn 5,000
vapor density
>1 (vs air)
Quality Level
vapor pressure
0.05 mmHg ( 20 °C)
양식
flakes
powder or crystals
분자량
average Mn 5,000
mp
60-64 °C
Ω-끝
hydroxyl
α-끝
methoxy
SMILES string
O(CCO)C
InChI
1S/C3H8O2/c1-5-3-2-4/h4H,2-3H2,1H3
InChI key
XNWFRZJHXBZDAG-UHFFFAOYSA-N
유사한 제품을 찾으십니까? 방문 제품 비교 안내
애플리케이션
기타 정보
관련 제품
Storage Class Code
10 - Combustible liquids
WGK
WGK 1
Flash Point (°F)
359.6 °F - closed cup
Flash Point (°C)
182 °C - closed cup
개인 보호 장비
Eyeshields, Gloves
가장 최신 버전 중 하나를 선택하세요:
시험 성적서(COA)
문서
Biofouling control essential for device performance and safety; minimize accumulation of biomolecules and bioorganisms.
Progress in biotechnology fields such as tissue engineering and drug delivery is accompanied by an increasing demand for diverse functional biomaterials. One class of biomaterials that has been the subject of intense research interest is hydrogels, because they closely mimic the natural environment of cells, both chemically and physically and therefore can be used as support to grow cells. This article specifically discusses poly(ethylene glycol) (PEG) hydrogels, which are good for biological applications because they do not generally elicit an immune response. PEGs offer a readily available, easy to modify polymer for widespread use in hydrogel fabrication, including 2D and 3D scaffold for tissue culture. The degradable linkages also enable a variety of applications for release of therapeutic agents.
조직 공학과 약물 전달과 같은 생명 공학의 진보는 다양한 기능성 바이오 소재에 대한 수요 증가를 동반합니다. 연구의 집중 관심 대상이 되어온 바이오 소재의 한 분야는 바로 하이드로겔으로, 화학적으로나 물리적으로 세포의 자연 환경과 유사하게 닮아 있기 때문에 세포를 키우는 토대로 사용될 수 있습니다. 본 기술 문서에서는 일반적으로 면역 반응을 유발하지 못하기 때문에 생물학적 용도로 적합한 PEG(폴리에틸렌 글리콜) 하이드로겔에 대해 상세하게 논의합니다. PEG는 쉽게 이용할 수 있으며, 손쉽게 고분자를 수정하여 세포 배양을 위한 2D 및 3D 뼈대를 포함한 하이드로겔 구성에 광범위하게 사용할 수 있습니다. 또한 분해성 결합을 통해 치료제 출시를 위한 다양한 응용분야에도 도움을 줍니다.
Designing biomaterial scaffolds mimicking complex living tissue structures is crucial for tissue engineering and regenerative medicine advancements.
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How can I determine the shelf life / expiration / retest date of this product?
1 답변-
도움이 되었습니까?
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How is shipping temperature determined? And how is it related to the product storage temperature?
1 답변-
Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf
도움이 되었습니까?
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활성 필터
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High dispersity!
Google로 번역Dispersity is 1.18! Not suitable for my experiment:(
도움이 되었습니까?
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We are sorry to hear this polydispersity value is not suitable for your application. Each lot is tested for polydispersity, the value is reported on the COA but we do not provide a specification range. The values from three of our past lots are 1.35, 1.35, and 1.34. You can search for the result of your lot by using the COA search on this page.
If you observed a different polydispersity than what is listed on your lot specific COA, you can contact us for additional technical support. Please visit https://www.sigmaaldrich.com/US/en/support/customer-support to submit a Product Technical Inquiry.
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- 무료 제품을 받음
Proton NMR spectrum of poly(etylene glycol)methyl ether does not indicate the structure!
Google로 번역Dear SA,
Your product MPEG5000 seems to have different structures/contaminants... In the spectra, by comparing -OCH3 end group protons with etylene protons, the degree of polymerisation calculated to be 50,7 instead of 113. Thus Mn is around 2260 g/mol (nor 5000 g/mol). Additionaly, there is an extra peak at 1,8-1,9 ppm is not related with MPEG5000 structure.. Our GPC study also indicates Mn around 2400 (not 5000) which fits well with NMR data... Please, reevaluate the structure of your product by considering our results...도움이 되었습니까?
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We would like to investigate this further.
Please visit https://www.sigmaaldrich.com/US/en/support/customer-support to submit a Product Technical Inquiry.
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자사의 과학자팀은 생명 과학, 재료 과학, 화학 합성, 크로마토그래피, 분석 및 기타 많은 영역을 포함한 모든 과학 분야에 경험이 있습니다..
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