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377635

Sigma-Aldrich

十八烷基-官能化硅胶

200-400 mesh, extent of labeling: 20-22% loading

别名:

C18 silica gel

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25 G
$191.00
100 G
$725.00

$191.00

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25 G
$191.00
100 G
$725.00

About This Item

MDL编号:
MFCD00166485
UNSPSC代码:
12352200
NACRES:
NA.22

$191.00

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表单

powder

标记范围

20-22% loading

表面积

~550 m2/g

基质

irregular silica particle platform

基质活性基团

C18 phase

粒径

200-400 mesh

孔径

60 Å pore size

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应用

Octadecyl-functionalized silica gel is generally used as a stationary phase [1][2] for low- and medium-pressure reversed-phase liquid chromatography.[3]

储存分类代码

11 - Combustible Solids

WGK

WGK 3

闪点(°F)

Not applicable

闪点(°C)

Not applicable

个人防护装备

Eyeshields, Gloves, type N95 (US)

历史批次信息供参考:

分析证书(COA)

Lot/Batch Number
0000365069
0000365069
0000324555
0000324556
SLCP7419

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Synthesis and characterization of polymeric C18 stationary phases for liquid chromatography
Sander LC and Wise SA
Analytical Chemistry, 56(3), 504-510 (1984)
Antitrypanosomatid activity of flavonoid glycosides isolated from Delphinium gracile, D. staphisagria, Consolida oliveriana and from Aconitum napellus subsp. Lusitanicum
Marin C, et al.
Phytochemistry Letters, 19(2), 196-209 (2017)
Acylated flavonol glycosides from Delphinium staphisagria
Diaz JG, et al.
Phytochemistry Letters, 1(2), 125-129 (2008)

Questions

1–5 of 5 Questions  

  1. What is the Department of Transportation shipping information for this product?

    1 answer

    1. Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.

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  2. What is the pH stability of Product 377635, Octadecyl-functionalized silica gel?

    1 answer

    1. The product is expected to be unstable when used at pH above 7.5.

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  3. What is the solubility of Product 377635, Octadecyl-functionalized silica gel?

    1 answer

    1. This product is not soluble. It can be swelled in organic solvents such as methanol or acetonitrile.

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  4. How is Product 377635, Octadecyl-functionalized silica gel, prepared?

    1 answer

    1. It is prepared by the reaction of silica gel with n-octadecyltrichlorosilane. After hydrolysis of the unreacted chloro groups, silanol groups on the silica are blocked with trimethylsilyl groups.

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  5. How can Product 377635, Octadecyl-functionalized silica gel resin be cleaned of stubborn material?

    1 answer

    1. One can usually start with 40-50% chloroform in methanol and see if that cleans the resin. If not, try increasing the chloroform content gradually until it is 100%.

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