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主要文件

1.02330

Supelco

微晶纤维素

for thin-layer chromatography

别名:

微晶纤维素

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About This Item

线性分子式:
(C6H10O5)n
CAS号:
MDL编号:
UNSPSC代码:
41115711
EC索引号:
232-674-9
NACRES:
NB.21
价格与库存信息目前不能提供

物料

cellulose matrix
plastic support

质量水平

表单

microcrystalline

自燃温度

232 °C

效能

>5000 mg/kg LD50, oral (Rat)
>2000 mg/kg LD50, skin (Rabbit)

特点

binder Organic Polymer
fluorescent indicator: no

包装

pkg of 500 g

技术

thin layer chromatography (TLC): suitable

粒径

5-40 μm

孔径

60 Å medium pore diameter

pH值(酸碱度)

5-7.5 (20 °C, 100 g/L in H2O, slurry)

转变温度

flash point 260 °C

密度

1.5 g/cm3 at 20 °C

堆积密度

70‑400 kg/m3

储存温度

2-30°C

SMILES字符串

O1[C@H](C(C(C(C1CO)O)O)O)O[C@@H]2C(OC(C(C2O)O)O)CO

InChI

1S/C12H22O11/c13-1-3-5(15)6(16)9(19)12(22-3)23-10-4(2-14)21-11(20)8(18)7(10)17/h3-20H,1-2H2/t3?,4?,5?,6?,7?,8?,9?,10-,11?,12+/m1/s1

InChI key

GUBGYTABKSRVRQ-WFVLMXAXSA-N

一般描述

标准化的吸附剂确保每一次结果的可靠性。我们广泛的产品谱可满足各种不同的需求。在 TLC 中,硅胶 60 吸附剂被认为是最通用的吸附剂。我们的硅胶 60 产品分若干等级,其颗粒大小介于 5-40 µm 范围内:带石膏粘结剂硅,不带粘结剂硅和带荧光指示剂的硅。我们还提供高品质的氧化铝、微晶纤维素和硅藻石(也称为硅藻土)。

应用

  • Study of the influence of cellulose derivatives on physical and analytical attributes of a drug product belonging to BCS class II.: 本研究探讨了纤维素微晶对 II 类药物的物理性质和分析性能的影响。研究结果表明,纤维素微晶可提高药物稳定性和溶解速率,有助于提高生物利用度 (Domoslawska et al., 2018)。
  • Application of ethyl cellulose, microcrystalline cellulose and octadecanol for wax based floating solid dispersion pellets.: 本研究调查了微晶纤维素在蜡基漂浮颗粒配方中的应用。结果揭示了其在控释曲线和增强药物输送系统漂浮性能方面的有效性(Yan et al., 2016)。
  • Modelling of porosity and waterfronts in cellulosic pellets for understanding drug release behavior.: 本文提出了一种分析纤维素颗粒孔隙率和水渗透性的模型,提供了有关药物释放机制的见解。这项研究凸显了微晶纤维素在调节药物释放曲线方面的关键作用(Gomez-Carracedo et al., 2010)。
  • Fast dissolving films made of maltodextrins.: 本研究探索了在速溶膜中加入微晶纤维素,揭示了其对膜完整性和溶解速率的影响。研究结果支持使用微晶纤维素来增强口腔薄膜的性能(Cilurzo et al., 2008)。
  • Compressibility of floating pellets with verapamil hydrochloride coated with dispersion Kollicoat SR 30 D.: 本研究评估了含有微晶纤维素的漂浮颗粒的可压缩性和机械性能,揭示了其在保持颗粒完整性和药物控释方面的作用(Sawicki & Lunio, 2005)。

分析说明

d 10(激光衍射,尺寸分布):3.0-10.0 µm
d 50(激光衍射,尺寸分布):10 - 30 µm
d 90(激光衍射,尺寸分布):30 - 60 µm

相关产品

储存分类代码

11 - Combustible Solids

WGK

WGK 1

闪点(°F)

Not applicable

闪点(°C)

Not applicable


分析证书(COA)

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Questions

1–3 of 3 Questions  
  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

      Helpful?

  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

      Helpful?

  3. what is the molecular weight of microcrystalline cellulose for tlc

    1 answer
    1. The molecular weight for this product is not determined.

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