10407370-GE Whatman混合纤维素膜ME25 0.45um47mm

产品型号10407370

品       牌沃特曼

厂商性质代理商

产品简介
加工定制

GE Whatman混合纤维素膜ME25 0.45um47mm,价格经济,尤其适用于水溶液,亲水性,操作温度高达 125ºC。已灭菌,单片包装,所有滤膜都具有高对比度网格。

详情介绍

GE Whatman混合纤维素膜ME25 0.45um47mm

薄膜过滤法

用于微生物检测的膜过滤器的技术需求要严格遵从国家和标准。同时,不断发展的市场需要也导致了新产品的问世,比如:软饮料、酒精混合饮料或者医药品。
Whatman提供一个广泛而种类繁多的膜过滤产品,具有一致的高质量。

MicroPlus 和 ME微检膜

微生物监控膜

为了保护消费者,我们需要完全确定食品和饮料、医药和化妆品中不含微生物污染物。
在这些产品中的微生物数量很少,因此需要进行扩增培养方法进行定量。整个生产过程受到持续的临界点监控(罐、管路、填充组件),成品亦是。膜过滤方法优化了这个分析方法。
方法
液体流过膜,微生物被富集于膜表面,将滤膜置于营养培养基上孵育,单菌落即可被计数。这个方法也适用于大体积低微生物数量的样品。

可靠性
我们的滤膜的质控和产品设计都经过严格的控制,为用户提供*性能。
检测参数
所有用于微生物质控的膜都经过一系列的测试,以确保每批次都保持一样的高质量。测试参数包括:起泡点、流速、细菌保留力、回收率以及灭菌性。

MicroPlus 膜
MicroPlus是高通量膜,具有0.45μm的孔径,适用于:用 1×103 germs/100mL 的Serratia marcescens ATCC 14756 ( DSM 1636 ) 进行细菌挑战试验,该试验是参照《水和废水检验标准方法》第 9020 部分 ( 实验室内质量控制指南 ) 关于饮料行业的微生物质量控制。

特点和优点
• 价格经济
• 尤其适用于水溶液
• 亲水性
• 操作温度高达 125ºC
• 已灭菌,单片包装
• 所有滤膜都具有高对比度网格
• STL 型的每个包装含4盒,每盒含 100 张已编号滤膜,这种盒与 Membrane-Butler取膜器匹配,使取用方便、操作安全。
关于滤膜的更多选择,请参考“滤膜”部分

GE Whatman混合纤维素膜ME25 0.45um47mm

订购信息:

ME ( 混合纤维素膜 )

直径 ( mm ) 货号 描述 孔径 ( μm ) 颜se 网格/颜色 数量/包
47
50
47
47
47
50
50
47
50
47
50
47
50
50
10407312
10407314
10406870
10406871
10407332
10406872
10407334
10407370
10407372
10409470
10409472
10408712
10408714
10407324
ME25/21 STL
ME25/21 STL
ME25/21 ST
ME25/21 ST
ME25/31 STL
ME25/21 ST
ME25/31 STL
ME25/41 STL
ME25/41 STL
ME25/41 ST
ME25/41 ST
ME24/21 STL
ME24/21 STL
ME25/20 STL
0.45
0.45
0.45
0.45
0.45
0.45
0.45
0.45
0.45
0.45
0.45
0.2
0.2
0.45







绿
绿
绿
绿


3.1 mm/黑
3.1 mm/黑
3.1 mm/黑
3.1 mm/黑
3.1 mm/白
3.1 mm/黑
3.1 mm/白
3.1 mm/黑
3.1 mm/黑
3.1 mm/黑
3.1 mm/黑
3.1 mm/黑
3.1 mm/黑
5.0 mm/黑
400
400
100
1000
400
100
400
400
400
100
100
400
400
400

Fmoc-Gln(Trt)-Ser(psi(Me,Me)pro)-OH

Fmoc-Gln(Trt)-Ser(psi(Me,Me)pro)-OH;

Fmoc-Gln(Trt)-Ser(psi(Me,Me)pro)-OH 是一种二肽。

Fmoc-Gln(Trt)-Ser(psi(Me,Me)pro)-OHamp;;

Fmoc-Gln(Trt)-Ser(psi(Me,Me)pro)-OH Chemical Structure

CAS No. : 1821378-64-6

规格 是否有货
100 mg ; 询价 ;
250 mg ; 询价 ;
500 mg ; 询价 ;

* Please select Quantity before adding items.

生物活性

Fmoc-Gln(Trt)-Ser(psi(Me,Me)pro)-OH is a dipeptide.

分子量

737.84

Formula

C45H43N3O7

CAS 号

1821378-64-6

运输条件

Room temperature in continental US; may vary elsewhere.

储存方式

Please store the product under the recommended conditions in the Certificate of Analysis.

Solvent Solubility
In Vitro:;

H2O

Peptide Solubility and Storage Guidelines:

1.;;Calculate the length of the peptide.

2.;;Calculate the overall charge of the entire peptide according to the following table:

; Contents Assign value
Acidic amino acid Asp (D), Glu (E), and the C-terminal -COOH. -1
Basic amino acid Arg (R), Lys (K), His (H), and the N-terminal -NH2 +1
Neutral amino acid Gly (G), Ala (A), Leu (L), Ile (I), Val (V), Cys (C), Met (M), Thr (T), Ser (S), Phe (F), Tyr (Y), Trp (W), Pro (P), Asn (N), Gln (Q) 0

3.;;Recommended solution:

Overall charge of peptide Details
Negative (lt;0) 1.;;Try to dissolve the peptide in water first.
2.;;If water fails, add NH4OH (lt;50 μL).
3.;;If the peptide still does not dissolve, add DMSO (50-100 μL) to solubilize the peptide.
Positive (gt;0) 1.;;Try to dissolve the peptide in water first.
2.;;If water fails, try dissolving the peptide in a 10%-30% acetic acid solution.
3.;;If the peptide still does not dissolve, try dissolving the peptide in a small amount of DMSO.
Zero (=0) 1.;;Try to dissolve the peptide in organic solvent (acetonitrile, methanol, etc.) first.
2.;;For very hydrophobic peptides, try dissolving the peptide in a small amount of DMSO, and then dilute the solution with water to the desired concentration.

H3K27(Me2) (15-34)

H3K27(Me2) (15-34);

H3K27(Me2) (15-34) 是一种组蛋白肽,是一种源自人类组蛋白的抑制性染色质标记。Polycomb Repressive Complex 2 (PRC2) 是一种多蛋白复合物,可催化 H3K27(Me) 的甲基化。

H3K27(Me2) (15-34)amp;;

H3K27(Me2) (15-34) Chemical Structure

规格 是否有货
100 mg ; 询价 ;
250 mg ; 询价 ;
500 mg ; 询价 ;

* Please select Quantity before adding items.

生物活性

H3K27(Me2) (15-34), a histone peptide, is a repressive chromatin mark derived from human histone. Polycomb Repressive Complex 2 (PRC2) is a multiprotein complex that catalyzes the methylation of H3K27(Me)[1][2].

分子量

2008.36

Formula

C86H154N30O25

Sequence

Ala-Pro-Arg-Lys-Gln-Leu-Ala-Thr-Lys-Ala-Ala-Arg-{Lys(Me2)}-Ser-Ala-Pro-Ala-Thr-Gly-Gly

Sequence Shortening

APRKQLATKAAR-{Lys(Me2)}-SAPATGG

运输条件

Room temperature in continental US; may vary elsewhere.

储存方式

Please store the product under the recommended conditions in the Certificate of Analysis.

参考文献
  • [1]. Elizabeth T Wiles, et al. H3K27 Methylation: A Promiscuous Repressive Chromatin Mark. Curr Opin Genet Dev. 2017 Apr;43:31-37.

    [2]. Brian P Chadwick, et al. Multiple Spatially Distinct Types of Facultative Heterochromatin on the Human Inactive X Chromosome. Proc Natl Acad Sci U S A. 2004 Dec 14;101(50):17450-5.

Fmoc-Ile-Ser(psi(Me,Me)pro)-OH

Fmoc-Ile-Ser(psi(Me,Me)pro)-OH;

Fmoc-Ile-Ser(psi(Me,Me)pro)-OH 是一种二肽。

Fmoc-Ile-Ser(psi(Me,Me)pro)-OHamp;;

Fmoc-Ile-Ser(psi(Me,Me)pro)-OH Chemical Structure

CAS No. : 1147996-34-6

规格 价格 是否有货 数量
1 g ¥500 In-stock
5 g ; 询价 ;
10 g ; 询价 ;

* Please select Quantity before adding items.

生物活性

Fmoc-Ile-Ser(psi(Me,Me)pro)-OH is a dipeptide.

分子量

480.55

Formula

C27H32N2O6

CAS 号

1147996-34-6

运输条件

Room temperature in continental US; may vary elsewhere.

储存方式
Powder -80deg;C 2 years
-20deg;C 1 year
In solvent -80deg;C 6 months
-20deg;C 1 month
Solvent Solubility
In Vitro:;

H2O

Peptide Solubility and Storage Guidelines:

1.;;Calculate the length of the peptide.

2.;;Calculate the overall charge of the entire peptide according to the following table:

; Contents Assign value
Acidic amino acid Asp (D), Glu (E), and the C-terminal -COOH. -1
Basic amino acid Arg (R), Lys (K), His (H), and the N-terminal -NH2 +1
Neutral amino acid Gly (G), Ala (A), Leu (L), Ile (I), Val (V), Cys (C), Met (M), Thr (T), Ser (S), Phe (F), Tyr (Y), Trp (W), Pro (P), Asn (N), Gln (Q) 0

3.;;Recommended solution:

Overall charge of peptide Details
Negative (lt;0) 1.;;Try to dissolve the peptide in water first.
2.;;If water fails, add NH4OH (lt;50 μL).
3.;;If the peptide still does not dissolve, add DMSO (50-100 μL) to solubilize the peptide.
Positive (gt;0) 1.;;Try to dissolve the peptide in water first.
2.;;If water fails, try dissolving the peptide in a 10%-30% acetic acid solution.
3.;;If the peptide still does not dissolve, try dissolving the peptide in a small amount of DMSO.
Zero (=0) 1.;;Try to dissolve the peptide in organic solvent (acetonitrile, methanol, etc.) first.
2.;;For very hydrophobic peptides, try dissolving the peptide in a small amount of DMSO, and then dilute the solution with water to the desired concentration.

Fmoc-Val-Ser(psi(Me,Me)pro)-OH

Fmoc-Val-Ser(psi(Me,Me)pro)-OH;

Fmoc-Val-Ser(psi(Me,Me)pro)-OH是一种二肽。

Fmoc-Val-Ser(psi(Me,Me)pro)-OHamp;;

Fmoc-Val-Ser(psi(Me,Me)pro)-OH Chemical Structure

CAS No. : 186023-49-4

规格 是否有货
100 mg ; 询价 ;
250 mg ; 询价 ;
500 mg ; 询价 ;

* Please select Quantity before adding items.

生物活性

Fmoc-Val-Ser(psi(Me,Me)pro)-OH is a dipeptide.

分子量

466.53

Formula

C26H30N2O6

CAS 号

186023-49-4

运输条件

Room temperature in continental US; may vary elsewhere.

储存方式

Please store the product under the recommended conditions in the Certificate of Analysis.

Solvent Solubility
In Vitro:;

H2O

Peptide Solubility and Storage Guidelines:

1.;;Calculate the length of the peptide.

2.;;Calculate the overall charge of the entire peptide according to the following table:

; Contents Assign value
Acidic amino acid Asp (D), Glu (E), and the C-terminal -COOH. -1
Basic amino acid Arg (R), Lys (K), His (H), and the N-terminal -NH2 +1
Neutral amino acid Gly (G), Ala (A), Leu (L), Ile (I), Val (V), Cys (C), Met (M), Thr (T), Ser (S), Phe (F), Tyr (Y), Trp (W), Pro (P), Asn (N), Gln (Q) 0

3.;;Recommended solution:

Overall charge of peptide Details
Negative (lt;0) 1.;;Try to dissolve the peptide in water first.
2.;;If water fails, add NH4OH (lt;50 μL).
3.;;If the peptide still does not dissolve, add DMSO (50-100 μL) to solubilize the peptide.
Positive (gt;0) 1.;;Try to dissolve the peptide in water first.
2.;;If water fails, try dissolving the peptide in a 10%-30% acetic acid solution.
3.;;If the peptide still does not dissolve, try dissolving the peptide in a small amount of DMSO.
Zero (=0) 1.;;Try to dissolve the peptide in organic solvent (acetonitrile, methanol, etc.) first.
2.;;For very hydrophobic peptides, try dissolving the peptide in a small amount of DMSO, and then dilute the solution with water to the desired concentration.

Fmoc-Trp(Boc)-Thr(psi(Me,Me)pro)-OH

Fmoc-Trp(Boc)-Thr(psi(Me,Me)pro)-OH;

Fmoc-Trp(Boc)-Thr(psi(Me,Me)pro)-OH 是一种二肽。

Fmoc-Trp(Boc)-Thr(psi(Me,Me)pro)-OHamp;;

Fmoc-Trp(Boc)-Thr(psi(Me,Me)pro)-OH Chemical Structure

CAS No. : 936707-21-0

规格 是否有货
100 mg ; 询价 ;
250 mg ; 询价 ;
500 mg ; 询价 ;

* Please select Quantity before adding items.

生物活性

Fmoc-Trp(Boc)-Thr(psi(Me,Me)pro)-OH is a dipeptide.

分子量

667.75

Formula

C38H41N3O8

CAS 号

936707-21-0

运输条件

Room temperature in continental US; may vary elsewhere.

储存方式

Please store the product under the recommended conditions in the Certificate of Analysis.

H3K4(Me) (1-20)

H3K4(Me) (1-20);

H3K4(Me) (1-20) 是一种组蛋白肽,H3K4me 是一种复杂调控的翻译后修饰,与活跃转录的基因组位点的增强子和启动子密切相关。

H3K4(Me) (1-20)amp;;

H3K4(Me) (1-20) Chemical Structure

规格 是否有货
100 mg ; 询价 ;
250 mg ; 询价 ;
500 mg ; 询价 ;

* Please select Quantity before adding items.

生物活性

H3K4(Me) (1-20), a histone peptide. H3K4me is an intricately regulated posttranslational modification, which is broadly associated with enhancers and promoters of actively transcribed genomic loci[1].

分子量

2197.58

Formula

C92H169N35O27

Sequence

Ala-Arg-Thr-{Lys(Me)}-Gln-Thr-Ala-Arg-Lys-Ser-Thr-Gly-Gly-Lys-Ala-Pro-Arg-Lys-Gln-Leu

Sequence Shortening

ART-{Lys(Me)}-QTARKSTGGKAPRKQL

运输条件

Room temperature in continental US; may vary elsewhere.

储存方式

Please store the product under the recommended conditions in the Certificate of Analysis.

参考文献
  • [1]. Mulder KW, et al. Regulation of histone H3K4 tri-methylation and PAF complex recruitment by the Ccr4-Not complex. Nucleic Acids Res. 2007;35(7):2428-2439.

    [2]. Vallianatos CN, et al. Disrupted intricacy of histone H3K4 methylation in neurodevelopmental disorders. Epigenomics. 2015;7(3):503-519.

Fmoc-Ile-Thr(psi(Me,Me)pro)-OH

Fmoc-Ile-Thr(psi(Me,Me)pro)-OH;

Fmoc-Ile-Thr(psi(Me,Me)pro)-OH 是个二肽。

Fmoc-Ile-Thr(psi(Me,Me)pro)-OHamp;;

Fmoc-Ile-Thr(psi(Me,Me)pro)-OH Chemical Structure

CAS No. : 957780-52-8

规格 是否有货
100 mg ; 询价 ;
250 mg ; 询价 ;
500 mg ; 询价 ;

* Please select Quantity before adding items.

生物活性

Fmoc-Ile-Thr(psi(Me,Me)pro)-OH is a dipeptide.

分子量

494.58

Formula

C28H34N2O6

CAS 号

957780-52-8

运输条件

Room temperature in continental US; may vary elsewhere.

储存方式

Please store the product under the recommended conditions in the Certificate of Analysis.

Fmoc-Asn(Trt)-Ser(psi(Me,Me)pro)-OH

Fmoc-Asn(Trt)-Ser(psi(Me,Me)pro)-OH;

Fmoc-Asn(Trt)-Ser(psi(Me,Me)pro)-OH 是一种二肽。

Fmoc-Asn(Trt)-Ser(psi(Me,Me)pro)-OHamp;;

Fmoc-Asn(Trt)-Ser(psi(Me,Me)pro)-OH Chemical Structure

CAS No. : 920519-33-1

规格 是否有货
100 mg ; 询价 ;
250 mg ; 询价 ;
500 mg ; 询价 ;

* Please select Quantity before adding items.

生物活性

Fmoc-Asn(Trt)-Ser(psi(Me,Me)pro)-OH is a dipeptide.

分子量

723.81

Formula

C44H41N3O7

CAS 号

920519-33-1

运输条件

Room temperature in continental US; may vary elsewhere.

储存方式

Please store the product under the recommended conditions in the Certificate of Analysis.

H3K27(Me) (15-34)

H3K27(Me) (15-34);

H3K27(Me) (15-34) 是一种源自人组蛋白的组蛋白肽,也是一种阻遏标记。PRC2 可催化 H3K27(Me) 的甲基化。

H3K27(Me) (15-34)amp;;

H3K27(Me) (15-34) Chemical Structure

规格 是否有货
100 mg ; 询价 ;
250 mg ; 询价 ;
500 mg ; 询价 ;

* Please select Quantity before adding items.

生物活性

H3K27(Me) (15-34), a histone peptide, is a repressive chromatin markderived from human histone. Polycomb Repressive Complex 2 (PRC2) is a multiprotein complex that catalyzes the methylation of H3K27(Me)[1][2].

分子量

1994.34

Formula

C85H152N30O25

Sequence

Ala-Pro-Arg-Lys-Gln-Leu-Ala-Thr-Lys-Ala-Ala-Arg-{Lys(Me)}-Ser-Ala-Pro-Ala-Thr-Gly-Gly

Sequence Shortening

APRKQLATKAAR-{Lys(Me)}-SAPATGG

运输条件

Room temperature in continental US; may vary elsewhere.

储存方式

Please store the product under the recommended conditions in the Certificate of Analysis.

参考文献
  • [1]. Elizabeth T Wiles, et al. H3K27 Methylation: A Promiscuous Repressive Chromatin Mark. Curr Opin Genet Dev. 2017 Apr;43:31-37.

    [2]. Brian P Chadwick, et al. Multiple Spatially Distinct Types of Facultative Heterochromatin on the Human Inactive X Chromosome. Proc Natl Acad Sci U S A. 2004 Dec 14;101(50):17450-5.