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Sigma-Aldrich

乙基纤维素

48.0-49.5% (w/w) ethoxyl basis

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About This Item

CAS號碼:
9004-57-3
MDL號碼:
MFCD00131037
分類程式碼代碼:
12352201
NACRES:
NA.25
暫時無法取得訂價和供貨情況

化驗

48.0-49.5% (w/w) (ethoxyl)

形狀

coarse powder
powder

自燃溫度

698 °F

顏色

beige

折射率

n20/D 1.47 (lit.)

黏度

30-70 mPa.s, 5 % in toluene/ethanol 80:20(25 °C)

密度

1.14 g/mL at 25 °C (lit.)

SMILES 字串

O1[C@H](C(C(C(C1COCC)OCC)OCC)OCC)O[C@@H]2C(OC(C(C2OCC)OCC)OCC)COCC

InChI

1S/C28H54O11/c1-9-29-17-19-21(31-11-3)23(32-12-4)26(35-15-7)28(38-19)39-22-20(18-30-10-2)37-27(36-16-8)25(34-14-6)24(22)33-13-5/h19-28H,9-18H2,1-8H3/t19?,20?,21?,22-,23?,24?,25?,26?,27?,28+/m1/s1

InChI 密鑰

MINRZDZESGXKDM-OLIDUAMRSA-N

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相關類別

應用

通过将重复的葡萄糖单位上的变量数羟基转化为乙醚基来生成乙基纤维素。乙基纤维素用于制备生物结构，例如用于药物递送的基质，微球，微粒，药丸和片剂。

準備報告

乙基纤维素可溶于多种溶剂，例如脂族醇，氯化溶剂和天然油。 它不溶于水，甘油和丙二醇。

其他說明

为了全面了解我们针对客户研究提供的各种多糖产品，建议您访问我们的碳水化合物分类页面。

儲存類別代碼

11 - Combustible Solids

水污染物質分類（WGK）

WGK 1

閃點（°F）

Not applicable

閃點（°C）

Not applicable

個人防護裝備

Eyeshields, Gloves, type N95 (US)

從最近期的版本中選擇一個：

分析證明 (COA)

Lot/Batch Number
BCCL7181
BCCM2923
BCCK5333
BCCH0473
BCCJ0430

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Avi Schneider et al.
Proceedings of the National Academy of Sciences of the United States of America, 117(49), 31010-31017 (2020-11-25)
Perovskite solar cells have developed into a promising branch of renewable energy. A combination of feasible manufacturing and renewable modules can offer an attractive advancement to this field. Herein, a screen-printed three-layered all-nanoparticle network was developed as a rigid framework
Tetsuya Ozeki et al.
Biological & pharmaceutical bulletin, 35(11), 1926-1931 (2012-11-06)
Production of drug nanoparticles is an effective strategy to enhance solubility and oral absorption of water-insoluble drugs. The handling of drug nanoparticles has been an important issue in drug formulation because nanoparticles easily aggregate each other and redispersion of these
Kifayat Ullah Shah et al.
TheScientificWorldJournal, 2012, 842348-842348 (2012-06-01)
The design and fabrication of sustained/controlled release dosage forms, employing new excipients capable of extending/controlling the release of drugs from the dosage forms over prolonged periods, has worked well in achieving optimally enhanced therapeutic levels of the drugs. In this
H V Adikane et al.
Applied biochemistry and biotechnology, 169(3), 1026-1038 (2013-01-09)
The chemical modification of developed ethyl cellulose-based membrane was carried out to make it suitable for bioseparation. The different reagents were used for the modification of membrane to couple protein A (PA) to study the purification of immunoglobulin G (IgG)
Ritesh M Pabari et al.
Expert opinion on drug delivery, 9(12), 1463-1474 (2012-10-16)
To examine the potential of a novel 3-fluid nozzle spray drying technology to formulate differentiated layered microparticles (MPs) of diclofenac sodium (DFS)/ethyl cellulose (EC). DFS/EC MPs were formulated using the inner and/or outer nozzles of a novel 3-fluid nozzle and
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Questions

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  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. 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

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. 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

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