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重要文件

31430

Supelco

右旋糖酐

analytical standard, for GPC, Set Mp 1,000-400,000

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About This Item

線性公式:
[C6H10O5]n
CAS號碼:
9004-54-0
EC號碼:
232-677-5
MDL號碼:
MFCD00130935
分類程式碼代碼:
41116107
NACRES:
NA.24
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等級

analytical standard
for GPC

品質等級

100

分子量

Mp 1,000-400,000

分析物化學類別

oligosaccharides

技術

gel permeation chromatography (GPC): suitable

應用

food and beverages

形式

neat

SMILES 字串

O1C(C(C(C(C1CO)O)O)O)OCC2OC(C(C(C2O)O)O)OCC(O)C(O)C(O)C(O)C=O

InChI

1S/C18H32O16/c19-1-5(21)9(23)10(24)6(22)3-31-17-16(30)14(28)12(26)8(34-17)4-32-18-15(29)13(27)11(25)7(2-20)33-18/h1,5-18,20-30H,2-4H2

InChI 密鑰

FZWBNHMXJMCXLU-UHFFFAOYSA-N

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相關類別

一般說明

葡聚糖是乳酸菌利用蔗糖合成的胞外多糖。它由重复的 D-葡萄糖单元构成，单体间通过 α-1,6糖苷键连接。此外，线性 D-葡萄糖链常间断出现分支结构，这些分支由 α-1,4， α-1,3，或 α-1,2糖苷键连接。

應用

本分析标准品也可适用于以下情况：
  • 基于高效体积排除色谱（HPSEC）测定从菠萝发酵物中提取的 柠檬明串珠菌 B-2合成的葡聚糖分子量
  • 用搭配水溶性凝胶柱的高效液相色谱测定从四种 木耳 中提取的多糖的分子量
  • 用凝胶渗透色谱（GPC）鉴定从 青钱柳 干叶经阴离子交换色谱分离的水溶性多糖的分子量
  • 基于凝胶渗透色谱（GPC）测定两种 肠膜明串珠菌产生的葡聚糖的分子量
  • 用高效体积排除色谱(HPSEC)评估果树修剪期修剪掉的小苹果中的水溶性多糖的分子量。

成分

该组包含 10 种不同的右旋糖酐标准品，500 mg M p ~1,100（货号 31416 ），~4,400（货号 31417），~10,000（货号 31418），约 20,000（货号 31419 ），~45 000（货号 31420 号），~65,000（货号 31421 ），~ 125,000（货号 31422），~ 195,000（货号 31423），~275,000（货号 31424），~ 40 万（货号 31425)；这些组分也可以按照指定的产品编号单独订购。

儲存類別代碼

11 - Combustible Solids

水污染物質分類（WGK）

WGK 2

個人防護裝備

Eyeshields, Gloves, type N95 (US)

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分析證明 (COA)

Lot/Batch Number
BCCM7487
BCCM0897
BCCL4931
BCCL1582
BCCK0088

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Alzheimer's disease (AD) is the most frequent and costly neurodegenerative disorder. Although diverse lines of evidence suggest that the amyloid precursor protein (APP) is involved in its causation, the precise mechanisms remain unknown and no treatments are available to prevent
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In plants, the presence of a load-bearing cell wall presents unique challenges during cell division. Unlike other eukaryotes, which undergo contractile cytokinesis upon completion of mitosis, plants instead synthesize and assemble a new dividing cell wall to separate newly formed
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Growing evidence shows that alterations occurring at early developmental stages contribute to symptoms manifested in adulthood in the setting of neurodegenerative diseases. Here, we studied the molecular mechanisms causing giant axonal neuropathy (GAN), a severe neurodegenerative disease due to loss-of-function
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相關內容

Dextran and Polysaccharides Overview

Dextrans are polysaccharides with molecular weights ≥1,000 Dalton, featuring a linear backbone of α-linked d-glucopyranosyl repeating units.

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

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    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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