久久久网_国产精品内射视频免费_美脚の诱脚舐め脚责91_久久国产欧美日韩精品_国产欧美日韩一区二区搜索_一区两区三区四区乱码国产精品

Welcome to Zhejiang Synose Tech Co., Ltd.!

Carbohydrate Derivative

β-D-Glucose Pentaacetate

Synonyms: α/β-D-glucose pentaacetate; 1,2,3,4,6-penta-O-acetyl-a, β-D-Glucopyranose; 1,2,3,4,6-penta-O-acetyl-D-glucopyranose; 1,2,3,4,6-penta-O-acetyl-α-D-glucopyranose; 1,2,3,4,6-penta-O-acetyl-β-D-glucopyranose; acetyl 2,3,4,6-tetr-o-acetyl-D-glucopyranoside

Molecular Formula: C16H22O11

Molecular weight: 390.34

CAS No.: α-:604-68-2, β-:604-69-3, α,β-:3891-59-6

EC No.: α-:210-073-2, β-:210-074-8, α,β-:223-439-1

FEMA No.: α,β-:2524

Molecular Structure:

α-D-Glucose Pentaacetate

β-D-Glucose Pentaacetate

Specification:

Item

α-

ß-

α, ß-

α, ß-(high a)

α, ß-(high ß)

Appearance

White crystalline powder

Assay(GC), %

≥98.0

≥98.0

≥98.0

α-D-Glucose Pentaacetate≥70.0

β-D-Glucose Pentaacetate≥70.0

Specific rotation

 ,(C=1,CHCl3)

+100.0~+103.0

+4.0~+6.0

+50.0~+60.0

≥+70.0

≤+35.0

Melting point,℃ 

111.0~114.0

130.0~134.0

≥85.0

-

-

Water,%

≤1.0

≤1.0

≤1.0

≤1.0

≤1.0

Residue on ignition, %

≤0.10

≤0.10

≤0.10

≤0.10

≤0.10

 

Characteristics: It is a white crystalline powder. It’s soluble in water and easy soluble in ethanol, chloroform etc.

Uses: This product is mainly used for the synthesis arbutin. Used as medicine, pharmaceutical intermediates and its modification, synthon of bioactive materials, activators of peroxides, additive of medicine, food and plastic, antisolvent crystallizations of pharmaceutical, enzyme and biomolecule, acetylation treatment of wood, nona porogen of polysilsesquioxanes film, standard of determination acetyl group, enzyme substrate in bioresearch, monitoring human body gluconeogenesis, fabrication molecular size nanopores for nano-thin films of phospholipids-hydrophobic polymers, synthese of biomaterials, glycoside liquid crystal materials, alkyl glucoside surfactants, low-molecular-mass gelators with sugar-appended, chiral bidentate ligands and ionic liquids, sugar-base amphiphilic polymer, glycosyl-biodegradable polymer or copolymer, hydrophily glycosyl pulvinic acid derivatives, glycopeptide oligomers, building block of glycopeptide, various of glycosylation donor and its derivative, ect.. In addition, α-D-glucose pentaacetate has insulinotropic action and expected to be a new type insulin secretagogue. It also has certain antimicrobial activities including shigella dysenteriae, candida albicans, staphylococcus and more than 10 kinds of bacterias to be a potential antimicrobial agent. It has ovicidal effect on tetranychus urticae, whitefly to control arthropod pests. GPA is sufficiently similar to effectively mimic lipochitooligosaccharides (LCOs)-signal transduction, leading to cell division and enhanced plant growth, so used as plant growth regulators (PGRs).

As pharmaceutical intermediates it used to synthesis the following pharmaceutical or active ingredients: sterol glucoside toxins, echinatin glycosides, diosgenin, glucosyl saponin such as tigogenin and hederagenin saponins, photodynamic therapy. In addition, glycosylation the pharmaceuticals such as linsidomide, silibinin, tocopherol (naphthotocopherol), gallic acid, glibenclamide, clopidol can improve their bioavailability.

As synthon the following bioactive compounds can be synthesized: Millingtonine A, triacetyl glucosyl-benzoxazinone, glucosyl- triazolo-triazine-ones / curcumin / flavanones and nucleoside analogs with antimicrobial activity, alkaloid Iteamine, heptasaccharide phytoalexin elicitor, pentasaccharide as vaccines, phenylethyl trisaccharide with hepatoprotective and vasorelaxant activities, glycosyl oxadiazoles derivatives and retinoic acid with anti-tumor activities for MDA-MB-231, glucosyl-12-(3-adamantan-1-yl-ureido)dodecanoic acid with inhibitor the soluble epoxide hydrolase, natural active phenylpropanoid glycosides, triazole-linked alkyl glucopyranosides with cytotoxic effects on Jurkat cells, 5-trifluoromethyl-2,4-dihydropyrazol-3-one nucleoside and Ipomoeassin F with anti-cancer activity, glucolaxogenin with anti-cervical cancer, glucose-based acetylsalicylic with inhibition proliferation of cancer cells, bicyclic carbohydrate-based derivative with inhibitory activity against human cytomegalovirus, flaviviruses, bovine viral diarrhea viruses, trypanosoma brucei rhodiense and leishmania donovani, glycoconjugates of dithiocarbamates and Their copper(zinc) complexes with anti-proliferative and antioxidant, Raphanuside with expectorant, anti-cough and antiasthmatic, quinazoline-S-glucoside with anti inflammatory, (-)-Strictinin with antiallergy and immunostimulatory, tannins compounds with anti-HIV, isoacteoside derivative with inhibiting β-amyloid peptides accumulation, bis-quinazoline glycosides with epidermal growth factor receptor inhibition, betulinic acid glucosides anti human myeloid leukemia activities, and acetylphenyl-glycosides with antioxidant as UV-B light absorbents.

It used as activator for peroxide such as hydrogen peroxide, peracetic acid, sodium percarbonate, ect., which used in sterilization, cold sterilization, bleaching process.

It used as additive for salrneterol xinafoate dry powder inhalers, artificial chocolate and tobacco, and especially it can reduce the pungent smell of cigarettes. In addition, added L-Menthyl glucoside origin from glucose pentaacetate to the tobacco giving cigarettes a cool and refreshing scent.  The modification of glucose pentaacetate can reduce Release of phenol in mainstream cigarette smoke containing paper-cellulose acetate binary filter.  And as bioplasticizers for PVC, polylactide and cellulose acetate.

It used as phase-change physical solvent or absorbent for CO2, solubilizer of some organic compounds in supercritical carbon dioxide and used in antisolvent crystallization of pharmaceuticals molecules, carbohydrate-containing biomolecules and enzymes to selective separation and modify their crystal morphology or crystal habit because of its CO2-philes.

It used to develop biological research materials, for example, the graft polymer of poly (hydroxyethyl methacrylate) and glucose that is immobilized on the surface of polypropylene to recognition and adsorption protein. Glycopeptide dendrimer conjugates of colchicines and sugar to study Hela-cell Cytotoxicitys. PCDA(10,12-pentacoasdiynoic acid) biosensor, which is tagging carbohydrates with PCDA dye. Brush glycopolymers, a kind of glycolipid mimic.

It used to synthesis branched-chain alkyl glucosides, thioglucopyranosides, p-phenylethylglucoside and β-sitosteryl-β-D-glucopyranoside, which exhibit liquid crystal behavior. Synthesis of organic semiconductors functionalized with biological molecules. And synthesis various glycosylation donors and its derivatives, such as tetra-O-acetyl-D-glucose, 1-chloro(or bromo)-tetra-O-acetyl-D-glucose, etc.

Storage: Maintain in cool, dry containment.

Package: 25kg/drum or as customer require.

Expiration Date: 2 years.

No.1958 Liyu Road Jinhua, Zhejiang, China

0086-579-82270620

expo@synose.com

Home|About us|News|Products|Custom|Contact us|中文版|English|日本語|Fran?ais|Pусский|Espa?a
Copyright(C)2017, Zhejiang Synose Tech Co., Ltd. All Rights Reserved. Supported by ChemNet ChinaChemNet Toocle Copyright Notice 浙ICP備06002737號-1
主站蜘蛛池模板: a级a做爰片免费观看 | 2020狠狠操 | 日韩中文字幕在线一区 | 成人欧美一区二区三区色青冈 | 东北女人一级毛片 | 两个人看的视频www 久久久久久无码AV成人影院 | 欧美人与动ZOZO在线播放 | 免费看黑人男阳茎进女阳道视频 | 久久久久久高清毛片 | 国产性猛交╳XXX乱大交 | 一个人免费视频观看在线www | 色婷婷综合久久久久中文一区二 | 中文字幕亚洲在线观看 | 亚洲国产一区二区精品视频 | 欧美美乳 | 亚洲一区二区视频 | 亚洲AV无码国产成人 | 久久精品国产欧美亚洲人人爽 | 久久精品国产曰本波多野结衣 | 中文字幕第8页在线资源 | 国产精品成人无码A片免费网址 | 天天操夜夜添 | 成av人片在线观看www | 一级肉体全黄毛片 | 无套日出白浆17p | GOGOGO免费高清看中国国语 | 四虎在线视频免费观看 | 欧美www视频在线观看 | 欧美成人精品 | 人摸人操| 97公开免费视频 | 女人久久久www免费人成看片 | 日韩av综合网 | 9420在线观看视频免费 | 91精品国产入口 | 成年人黄色一级片 | 国产精品人妻一区二区网站 | 亚洲视频一二三 | 国精产品一码一码三MBA | 国产一区二区怡红院 | 亚洲精品日韩中文字幕久久久 |