筛选出 5 条数据

    品牌 产品 货期 价格 货号 规格 /
    变性剂75-12-7

    CAS号:75-12-7

    品名:甲酰胺formamide

    中文别名:氨基甲醛;

    英文别名:potassiumdeuteroformate;Formamide;Hydroxyformaldimin;Formimidsaeure;formic-dacid,potassiumsalt;formimidicacid;Kalium-d-formiat;Potassiumformate-d;formamidicacid;

    分子式:CH3NO

    分子量:45.0406

    精确质量:45.0215

    Psa:43.09

    RTECS号:LQ0525000

    UNII号:4781T907ZS

    外观与性状:透明无色液体

    密度:1.134g/mLat 25°C(lit.)

    沸点:210°C(lit.)

    熔点:2-3°C(lit.)

    闪点:310°F

    折射率:n20/D 1.447(lit.)

    稳定性:Stable at room temperature in closed containers under normal storage and handling conditions.

    储存条件:库房低温,通风,干燥

    蒸汽压:0.08 mm Hg ( 20 °C)

    安全说明:S53-S45-S36/37/39-S26-S23

    危险类别码:R61

    WGK Germany:2

    海关编码:2924199090

    危险品标志:T

    信号词:Danger

    危险性防范说明:P201; P202; P260; P280; P308 + P313; P501

    危险标志:GHS08

    危险性描述:H351; H360D; H373

    简介:甲酰胺是甲酸衍生出的酰胺,分子式为HCONH2。它是无色液体,与水混溶,有与氨类似的气味。主要用于生产磺胺类药物,合成维生素及用作纸张和纤维的软化剂。纯的甲酰胺可以溶解许多不溶于水的离子化合物,因此也被用作溶剂。

     75-12-7 详细信息

    变性剂

    CAS号:75-12-7

    品名:甲酰胺formamide

    中文别名:氨基甲醛;

    英文别名:potassiumdeuteroformate;Formamide;Hydroxyformaldimin;Formimidsaeure;formic-dacid,potassiumsalt;formimidicacid;Kalium-d-formiat;Potassiumformate-d;formamidicacid;

    分子式:CH3NO

    分子量:45.0406

    精确质量:45.0215

    Psa:43.09

    RTECS号:LQ0525000

    UNII号:4781T907ZS

    外观与性状:透明无色液体

    密度:1.134g/mLat 25°C(lit.)

    沸点:210°C(lit.)

    熔点:2-3°C(lit.)

    闪点:310°F

    折射率:n20/D 1.447(lit.)

    稳定性:Stable at room temperature in closed containers under normal storage and handling conditions.

    储存条件:库房低温,通风,干燥

    蒸汽压:0.08 mm Hg ( 20 °C)

    安全说明:S53-S45-S36/37/39-S26-S23

    危险类别码:R61

    WGK Germany:2

    海关编码:2924199090

    危险品标志:T

    信号词:Danger

    危险性防范说明:P201; P202; P260; P280; P308 + P313; P501

    危险标志:GHS08

    危险性描述:H351; H360D; H373

    简介:甲酰胺是甲酸衍生出的酰胺,分子式为HCONH2。它是无色液体,与水混溶,有与氨类似的气味。主要用于生产磺胺类药物,合成维生素及用作纸张和纤维的软化剂。纯的甲酰胺可以溶解许多不溶于水的离子化合物,因此也被用作溶剂。

    展开

    变性剂75-12-7
    阿法埃莎 甲酰胺 Formamide,99%,formolecula... 现货

     6793.00
    C32723 /
    阿法埃莎 甲酰胺 Formamide,99+%,forspectro... 现货

     5043.00
    C41076 /
    生物缓冲液4432-31-9

    CAS号:4432-31-9

    品名:2-吗啉乙磺酸2-(N-morpholino)ethanesulfonicacid

    中文别名:吗啉乙磺酸(MES);吗啉乙磺酸;2-(N-吗啡啉)乙烷磺酸钠((MES);MES溶液;脂肪酸甲酯磺酸钠;表面活性剂MES;2-(N-吗啉基)乙磺酸;4-吗啉乙磺酸,2-(N-吗啉基)乙磺酸;2-(N-吗啡啉)乙烷磺酸钠;低水分吗啉乙磺酸;

    英文别名:messolution;2-Morpholinoethanesulfonicacid;MEShydrate;MOPSsolution;MES;morpholinoethanesulfonicacid;MES,ULTRAPURE;2-(N-Morpholino)ethanesulfonicacid,4-Morpholineethanesulfonicacid;MESHYDRAT;2-morpholinoethanesulfonicacid;MESANHYDROUS;4-Morpholineethanesulfonicacid;2-(N-Morpholino)EthanesulfonicAcid;surfactantMES;

    分子式:C6H13NO4S

    分子量:195.237

    精确质量:195.057

    Psa:75.22

    RTECS号:QE9104530

    MDL号:MFCD00006181

    外观与性状:白色结晶粉末

    密度:1.349 g/cm3

    熔点:&>300°C(lit.)

    折射率:1.525

    稳定性:Stable. Incompatible with strong oxidizing agents.

    储存条件:Store at RT.

    安全说明:S26-S36-S24/25-S22

    危险类别码:R36/37/38

    WGK Germany:1

    海关编码:29349990

    危险品标志:Xi

    简介:MESisthecommonnameforthecompound2-(N-morpholino)ethanesulfonicacid.Itschemicalstructurecontainsamorpholinering.Ithasamolecularweightof195.2andthechemicalformulaisC6H13NO4S.Synonymsinclude:2-morpholinoethanesulfonicacid;2-(4-morpholino)ethanesulfonicacid;2-(N-morpholino)ethanesulfonicacid;2-(4-morpholino)ethanesulfonicacid;MES;MEShydrate;andmorpholine-4-ethanesulfonicacidhydrate.MOPSisasimilarpHbufferingcompoundwhichcontainsapropanesulfonicmoietyinsteadofanethanesulfonicone.

    用途:MES易溶于水,呈无色透明状。缓冲原理和其他的缓冲对一样,由“弱酸及其共轭碱”或“弱碱及其共轭酸”所组成,当溶液中加入少量酸性物质时,缓冲对中的碱性组分子与之反应中和,当溶液中加入少量碱性物质时,缓冲对中的酸性组分与之反应中和,即同离子效应。

     4432-31-9 详细信息

    生物缓冲液

    CAS号:4432-31-9

    品名:2-吗啉乙磺酸2-(N-morpholino)ethanesulfonicacid

    中文别名:吗啉乙磺酸(MES);吗啉乙磺酸;2-(N-吗啡啉)乙烷磺酸钠((MES);MES溶液;脂肪酸甲酯磺酸钠;表面活性剂MES;2-(N-吗啉基)乙磺酸;4-吗啉乙磺酸,2-(N-吗啉基)乙磺酸;2-(N-吗啡啉)乙烷磺酸钠;低水分吗啉乙磺酸;

    英文别名:messolution;2-Morpholinoethanesulfonicacid;MEShydrate;MOPSsolution;MES;morpholinoethanesulfonicacid;MES,ULTRAPURE;2-(N-Morpholino)ethanesulfonicacid,4-Morpholineethanesulfonicacid;MESHYDRAT;2-morpholinoethanesulfonicacid;MESANHYDROUS;4-Morpholineethanesulfonicacid;2-(N-Morpholino)EthanesulfonicAcid;surfactantMES;

    分子式:C6H13NO4S

    分子量:195.237

    精确质量:195.057

    Psa:75.22

    RTECS号:QE9104530

    MDL号:MFCD00006181

    外观与性状:白色结晶粉末

    密度:1.349 g/cm3

    熔点:&>300°C(lit.)

    折射率:1.525

    稳定性:Stable. Incompatible with strong oxidizing agents.

    储存条件:Store at RT.

    安全说明:S26-S36-S24/25-S22

    危险类别码:R36/37/38

    WGK Germany:1

    海关编码:29349990

    危险品标志:Xi

    简介:MESisthecommonnameforthecompound2-(N-morpholino)ethanesulfonicacid.Itschemicalstructurecontainsamorpholinering.Ithasamolecularweightof195.2andthechemicalformulaisC6H13NO4S.Synonymsinclude:2-morpholinoethanesulfonicacid;2-(4-morpholino)ethanesulfonicacid;2-(N-morpholino)ethanesulfonicacid;2-(4-morpholino)ethanesulfonicacid;MES;MEShydrate;andmorpholine-4-ethanesulfonicacidhydrate.MOPSisasimilarpHbufferingcompoundwhichcontainsapropanesulfonicmoietyinsteadofanethanesulfonicone.

    用途:MES易溶于水,呈无色透明状。缓冲原理和其他的缓冲对一样,由“弱酸及其共轭碱”或“弱碱及其共轭酸”所组成,当溶液中加入少量酸性物质时,缓冲对中的碱性组分子与之反应中和,当溶液中加入少量碱性物质时,缓冲对中的酸性组分与之反应中和,即同离子效应。

    展开

    生物缓冲液4432-31-9
    阿拉丁 MES溶液 MESsolution 期货,请咨询

     5312.90
    M432725 UltraBio™,用于分子生物学,超纯级,0.5MinH2O
    变性剂50-01-1

    CAS号:50-01-1

    品名:盐酸胍Guanidinehydrochloride

    中文别名:胍盐酸盐;

    英文别名:Aminoformamidinehydrochloride,Guanidiniumchloride,Guanidiumchloride;1-methylguanidinehydrochloride;Aminomethanamidinehydrochlorid;AMINOFORMAMIDINEHCL;GdmCl;GUANIDINEHCL;Guanidine(hydrochloride);hydrochloricacidguanidine;Guanidinehydrochloride;Aminoformamidinehydrochloride,Aminomethanamidinehydrochloride,Guanidiniumchloride;Guanidine,monohydrochloride;usafek-749;guanidinemonohydrochloride;Guanidinhydrochlorid;GuanidineHydrochlor;GuanidineHydrochloride;Aminoformamidinehydrochloride;Guanidinechloride;GuanidineHCl;GUANIDIUMCHLORIDE;GUANIDINIUMCHLORIDE;GUHY;

    分子式:CH6ClN3

    分子量:95.5314

    精确质量:95.025

    Psa:75.89

    RTECS号:MF4300000

    MDL号:MFCD00013026

    外观与性状:白色或微黄色块状物。 本品20℃时溶解度:200g/100g水,76g/100g甲醇,24g/100g乙醇。几乎不溶于丙酮、苯和乙醚。

    密度:1.18g/mLat 25°C(lit.)

    沸点:132.9ºC at 760 mmHg

    熔点:180-185°C(lit.)

    闪点:34.2ºC

    折射率:n20/D 1.465

    稳定性:Stable. Hygroscopic. Incompatible with strong oxidizing agents.

    储存条件:Store at RT.

    安全说明:S26-S36-S22

    危险类别码:R22; R36/38

    WGK Germany:1

    海关编码:2925290090

    危险品标志:Xn

    信号词:Warning

    危险性防范说明:P261; P280; P301 + P312 + P330; P304 + P340 + P312; P305 + P351 + P338; P337 + P313

    危险标志:GHS07

    危险性描述:H302 + H332; H315; H319

    简介:Guanidiniumchlorideorguanidinehydrochloride,usuallyabbreviatedGdmClandsometimesGndClorGuHCl,isthehydrochloridesaltofguanidine.

     50-01-1 详细信息

    变性剂

    CAS号:50-01-1

    品名:盐酸胍Guanidinehydrochloride

    中文别名:胍盐酸盐;

    英文别名:Aminoformamidinehydrochloride,Guanidiniumchloride,Guanidiumchloride;1-methylguanidinehydrochloride;Aminomethanamidinehydrochlorid;AMINOFORMAMIDINEHCL;GdmCl;GUANIDINEHCL;Guanidine(hydrochloride);hydrochloricacidguanidine;Guanidinehydrochloride;Aminoformamidinehydrochloride,Aminomethanamidinehydrochloride,Guanidiniumchloride;Guanidine,monohydrochloride;usafek-749;guanidinemonohydrochloride;Guanidinhydrochlorid;GuanidineHydrochlor;GuanidineHydrochloride;Aminoformamidinehydrochloride;Guanidinechloride;GuanidineHCl;GUANIDIUMCHLORIDE;GUANIDINIUMCHLORIDE;GUHY;

    分子式:CH6ClN3

    分子量:95.5314

    精确质量:95.025

    Psa:75.89

    RTECS号:MF4300000

    MDL号:MFCD00013026

    外观与性状:白色或微黄色块状物。 本品20℃时溶解度:200g/100g水,76g/100g甲醇,24g/100g乙醇。几乎不溶于丙酮、苯和乙醚。

    密度:1.18g/mLat 25°C(lit.)

    沸点:132.9ºC at 760 mmHg

    熔点:180-185°C(lit.)

    闪点:34.2ºC

    折射率:n20/D 1.465

    稳定性:Stable. Hygroscopic. Incompatible with strong oxidizing agents.

    储存条件:Store at RT.

    安全说明:S26-S36-S22

    危险类别码:R22; R36/38

    WGK Germany:1

    海关编码:2925290090

    危险品标志:Xn

    信号词:Warning

    危险性防范说明:P261; P280; P301 + P312 + P330; P304 + P340 + P312; P305 + P351 + P338; P337 + P313

    危险标志:GHS07

    危险性描述:H302 + H332; H315; H319

    简介:Guanidiniumchlorideorguanidinehydrochloride,usuallyabbreviatedGdmClandsometimesGndClorGuHCl,isthehydrochloridesaltofguanidine.

    展开

    变性剂50-01-1
    阿拉丁 胍盐酸盐溶液 Guanidinehydrochloridesolu... 期货,请咨询

     5472.90
    G432768 /
    生物缓冲液7365-45-9

    CAS号:7365-45-9

    品名:4-羟乙基哌嗪乙磺酸2-[4-(2-hydroxyethyl)piperazin-1-yl]ethanesulfonicacid

    中文别名:N-(2-羟乙基)哌嗪-N'-2-乙烷磺酸;4-(2-羟乙基)-1-哌嗪基]乙磺酸;N-2-羟乙基哌嗪-N'-2-乙磺酸;N-2-羟乙基哌嗪-N'-2-乙磺酸(HEPES);4-(2-羟乙基)-1-哌嗪乙磺酸;羟乙基哌嗪乙磺酸;N-(2-羟乙基)哌嗪-N’-2-乙烷磺酸;

    英文别名:GOOD'SBUFFER;HEPES.1/2Na;EIThydrobromide;HEPES,1Msolution;hepesfreeacid;HEPESBUFFERPH8.0;HEPES;hepessolution;

    分子式:C8H18N2O4S

    分子量:238.305

    精确质量:238.099

    Psa:89.46

    RTECS号:TL6809000

    MDL号:MFCD00006158

    外观与性状:白色结晶粉末

    密度:1.07g/mLat 20°C

    熔点:234-238 °C

    折射率:n20/D 1.339

    稳定性:Stable. Combustible. Incompatible with strong oxidizing agents. Protect from moisture.

    储存条件:2-8ºC

    安全说明:S24/25-S22-S36-S26

    危险类别码:R36/37/38

    WGK Germany:1

    海关编码:29335995

    危险品标志:Xi

    简介:HEPES(4-(2-hydroxyethyl)-1-piperazineethanesulfonicacid)isazwitterionicorganicchemicalbufferingagent;oneofthetwentyGood'sbuffers.HEPESiswidelyusedincellculture,largelybecauseitisbetteratmaintainingphysiologicalpHdespitechangesincarbondioxideconcentration(producedbycellularrespiration)whencomparedtobicarbonatebuffers,whicharealsocommonlyusedincellculture.Thedissociationofwaterdecreaseswithfallingtemperature,butthedissociationconstants(pK)ofmanyotherbuffersdonotchangemuchwithtemperature.HEPESislikewaterinthatitsdissociationdecreasesasthetemperaturedecreases.ThismakesHEPESamoreeffectivebufferingagentformaintainingenzymestructureandfunctionatlowtemperatures.Lepe-Zunigaetal.reportedaphototoxicityofHEPESwhenexposedtoambientlightbytheproductionofhydrogenperoxide,whichisnotaprobleminbicarbonate-basedcellculturebuffers.ItisthereforestronglyadvisedtokeepHEPES-containingsolutionsindarknessasmuchaspossible.

    用途:本品是一种氢离子缓冲剂,能较长时间控制恒定的pH范围。

     7365-45-9 详细信息

    生物缓冲液

    CAS号:7365-45-9

    品名:4-羟乙基哌嗪乙磺酸2-[4-(2-hydroxyethyl)piperazin-1-yl]ethanesulfonicacid

    中文别名:N-(2-羟乙基)哌嗪-N'-2-乙烷磺酸;4-(2-羟乙基)-1-哌嗪基]乙磺酸;N-2-羟乙基哌嗪-N'-2-乙磺酸;N-2-羟乙基哌嗪-N'-2-乙磺酸(HEPES);4-(2-羟乙基)-1-哌嗪乙磺酸;羟乙基哌嗪乙磺酸;N-(2-羟乙基)哌嗪-N’-2-乙烷磺酸;

    英文别名:GOOD'SBUFFER;HEPES.1/2Na;EIThydrobromide;HEPES,1Msolution;hepesfreeacid;HEPESBUFFERPH8.0;HEPES;hepessolution;

    分子式:C8H18N2O4S

    分子量:238.305

    精确质量:238.099

    Psa:89.46

    RTECS号:TL6809000

    MDL号:MFCD00006158

    外观与性状:白色结晶粉末

    密度:1.07g/mLat 20°C

    熔点:234-238 °C

    折射率:n20/D 1.339

    稳定性:Stable. Combustible. Incompatible with strong oxidizing agents. Protect from moisture.

    储存条件:2-8ºC

    安全说明:S24/25-S22-S36-S26

    危险类别码:R36/37/38

    WGK Germany:1

    海关编码:29335995

    危险品标志:Xi

    简介:HEPES(4-(2-hydroxyethyl)-1-piperazineethanesulfonicacid)isazwitterionicorganicchemicalbufferingagent;oneofthetwentyGood'sbuffers.HEPESiswidelyusedincellculture,largelybecauseitisbetteratmaintainingphysiologicalpHdespitechangesincarbondioxideconcentration(producedbycellularrespiration)whencomparedtobicarbonatebuffers,whicharealsocommonlyusedincellculture.Thedissociationofwaterdecreaseswithfallingtemperature,butthedissociationconstants(pK)ofmanyotherbuffersdonotchangemuchwithtemperature.HEPESislikewaterinthatitsdissociationdecreasesasthetemperaturedecreases.ThismakesHEPESamoreeffectivebufferingagentformaintainingenzymestructureandfunctionatlowtemperatures.Lepe-Zunigaetal.reportedaphototoxicityofHEPESwhenexposedtoambientlightbytheproductionofhydrogenperoxide,whichisnotaprobleminbicarbonate-basedcellculturebuffers.ItisthereforestronglyadvisedtokeepHEPES-containingsolutionsindarknessasmuchaspossible.

    用途:本品是一种氢离子缓冲剂,能较长时间控制恒定的pH范围。

    展开

    生物缓冲液7365-45-9
    阿法埃莎 HEPES缓冲溶液,1M,pH7.3 HEPES,1Msoln.,pH7.3,Mol... 现货

     5103.00
    J16924 /
温馨提示 ×
商品已成功加入购物车!
购物车共 0 件商品
去购物车结算
微信 ×

打开微信,点击底部的“发现”

使用“扫一扫”即可将网页分享至朋友圈