筛选出 5 条数据

    品牌 产品 货期 价格 货号 规格 /
    有机砌块407-25-0

    CAS号:407-25-0

    品名:三氟乙酸酐Trifluoroaceticanhydride

    中文别名:三氟乙酐;三氟醋酸酐;

    英文别名:trifluoroaceticanhydride;trifluoroacetic;TRIFLUORACETICANHYDRIDE;Perfluoraceticanhydride;trifluoroacetylanhydride;perfluoroaceticanhydride;2,2,2-trifluoroaceticanhydride;TrifluoroaceticAnhydride(TFAA);hexafluoroaceticanhydride;Aceticacid,trifluoro-,anhydride;trifluoroaceticacidanhydride;bis-trifluoroaceticanhydride;Trifluoroaceticanhy;TFAA;TRIFLUOROACETOANHYDRIDE;TIFLUOROACETICANHYDRIDE;RIFLUOROACETICANHYDRIDE;

    分子式:C4F6O3

    分子量:210.031

    精确质量:209.975

    Psa:43.37

    RTECS号:AJ9800000

    MDL号:MFCD00000416

    外观与性状:无色液体

    密度:1.511g/mLat 20°C(lit.)

    沸点:39.5-40°C(lit.)

    熔点:-63.5 °C

    闪点:-26 °C

    折射率:n20/D 1.3(lit.)

    稳定性:Stable, but moisture sensitive. Reacts with water to liberate hydrogen (flammable). Incompatible with water, strong oxidizing agents.

    储存条件:库房通风低温干燥,与H发孔剂、碱类、氰化物分开存放

    蒸汽压:439mmHg at 25°C

    安全说明:S26-S36/37/39-S43-S45-S61-S9-S8-S28A-S27

    危险类别码:R14; R20; R35; R52/53

    WGK Germany:2

    海关编码:29159080

    危险品运输编码:UN 3265 8/PG 1

    危险类别:8

    包装等级:I

    危险品标志:C

    简介:Trifluoroaceticanhydride(TFAA)istheacidanhydrideoftrifluoroaceticacid.Itistheperfluorinatedderivativeofaceticanhydride.Likemanyacidanhydrides,itmaybeusedtointroducethecorrespondingtrifluoroacetylgroup.Thecorrespondingacylchloride,trifluoroacetylchloride,isagas,makingitinconvenienttoworkwith.Trifluoroaceticanhydrideistherecommendeddesiccantfortrifluoroaceticacid.

    用途:主要用作分析试剂、溶剂、催化剂、脱水缩合剂、羧基和氨基三氟乙酰化时的保护剂。

     407-25-0 详细信息

    有机砌块

    CAS号:407-25-0

    品名:三氟乙酸酐Trifluoroaceticanhydride

    中文别名:三氟乙酐;三氟醋酸酐;

    英文别名:trifluoroaceticanhydride;trifluoroacetic;TRIFLUORACETICANHYDRIDE;Perfluoraceticanhydride;trifluoroacetylanhydride;perfluoroaceticanhydride;2,2,2-trifluoroaceticanhydride;TrifluoroaceticAnhydride(TFAA);hexafluoroaceticanhydride;Aceticacid,trifluoro-,anhydride;trifluoroaceticacidanhydride;bis-trifluoroaceticanhydride;Trifluoroaceticanhy;TFAA;TRIFLUOROACETOANHYDRIDE;TIFLUOROACETICANHYDRIDE;RIFLUOROACETICANHYDRIDE;

    分子式:C4F6O3

    分子量:210.031

    精确质量:209.975

    Psa:43.37

    RTECS号:AJ9800000

    MDL号:MFCD00000416

    外观与性状:无色液体

    密度:1.511g/mLat 20°C(lit.)

    沸点:39.5-40°C(lit.)

    熔点:-63.5 °C

    闪点:-26 °C

    折射率:n20/D 1.3(lit.)

    稳定性:Stable, but moisture sensitive. Reacts with water to liberate hydrogen (flammable). Incompatible with water, strong oxidizing agents.

    储存条件:库房通风低温干燥,与H发孔剂、碱类、氰化物分开存放

    蒸汽压:439mmHg at 25°C

    安全说明:S26-S36/37/39-S43-S45-S61-S9-S8-S28A-S27

    危险类别码:R14; R20; R35; R52/53

    WGK Germany:2

    海关编码:29159080

    危险品运输编码:UN 3265 8/PG 1

    危险类别:8

    包装等级:I

    危险品标志:C

    简介:Trifluoroaceticanhydride(TFAA)istheacidanhydrideoftrifluoroaceticacid.Itistheperfluorinatedderivativeofaceticanhydride.Likemanyacidanhydrides,itmaybeusedtointroducethecorrespondingtrifluoroacetylgroup.Thecorrespondingacylchloride,trifluoroacetylchloride,isagas,makingitinconvenienttoworkwith.Trifluoroaceticanhydrideistherecommendeddesiccantfortrifluoroaceticacid.

    用途:主要用作分析试剂、溶剂、催化剂、脱水缩合剂、羧基和氨基三氟乙酰化时的保护剂。

    展开

    有机砌块407-25-0
    阿法埃莎 三氟乙酸酐,99+% Trifluoroaceticanhydride,9... 现货

     8137.00
    A13614 99+%
    有机砌块140-89-6

    CAS号:140-89-6

    品名:乙基黄原酸钾potassiumethylxanthate

    中文别名:农药乳化剂600;O-乙基二硫代碳酸钾;乙基钾黄药;黄酸钾;

    英文别名:PotassiumO-ethylcarbonodithioate;EthylxanthicAcidPotassiumSalt;potassiumO-ethyldithiocarbonate;Potassiumethylxanthate;PotassiumO-EthylDithiocarbonate;O-ethylpotassiumcarbonodithioate;DITHIOCARBONICACIDO-ETHYLESTER,POTASSIUMSALTDIMER;PotassiumXanthogenate;potassiumO-ethylcarbonodithioate;potassium,ethoxymethanedithioate;Potassiumethylxanthogenate;PotassiuMEthylxanthate;

    分子式:C3H5KOS2

    分子量:160.299

    精确质量:159.942

    Psa:66.62

    RTECS号:205-439-3

    BRN号:3596974

    EINECS号:205-439-3

    MDL号:MFCD00004931

    PubChem号:24881784

    外观与性状:乙基黄原酸钾(140-89-6)为白色至淡黄色结晶或结晶性粉末。易溶于水,溶于乙醇,溶点210℃(分解)。

    密度:1,558 g/cm3

    沸点:120.5ºC at 760 mmHg

    熔点:209-214 °C

    闪点:96°C

    稳定性:Stable. Incompatible with strong acids, strong bases, strong oxidizing agents.

    蒸汽压:18.2mmHg at 25°C

    安全说明:S37/39-S26-S37

    危险类别码:R22; R36/37/38

    海关编码:2930909090

    危险品运输编码:3342

    危险类别:4.2

    包装等级:II

    危险品标志:Xn

    简介:PotassiumethylxanthateisanorganosulfurcompoundwiththechemicalformulaCH3CH2OCS2K.Itisapaleyellowpowderthatisusedintheminingindustryfortheseparationofores.Unliketherelatedsodiumethylxanthate,thepotassiumsaltexistsasananhydroussalt.

    用途:在金属选矿中充当捕收剂

     140-89-6 详细信息

    有机砌块

    CAS号:140-89-6

    品名:乙基黄原酸钾potassiumethylxanthate

    中文别名:农药乳化剂600;O-乙基二硫代碳酸钾;乙基钾黄药;黄酸钾;

    英文别名:PotassiumO-ethylcarbonodithioate;EthylxanthicAcidPotassiumSalt;potassiumO-ethyldithiocarbonate;Potassiumethylxanthate;PotassiumO-EthylDithiocarbonate;O-ethylpotassiumcarbonodithioate;DITHIOCARBONICACIDO-ETHYLESTER,POTASSIUMSALTDIMER;PotassiumXanthogenate;potassiumO-ethylcarbonodithioate;potassium,ethoxymethanedithioate;Potassiumethylxanthogenate;PotassiuMEthylxanthate;

    分子式:C3H5KOS2

    分子量:160.299

    精确质量:159.942

    Psa:66.62

    RTECS号:205-439-3

    BRN号:3596974

    EINECS号:205-439-3

    MDL号:MFCD00004931

    PubChem号:24881784

    外观与性状:乙基黄原酸钾(140-89-6)为白色至淡黄色结晶或结晶性粉末。易溶于水,溶于乙醇,溶点210℃(分解)。

    密度:1,558 g/cm3

    沸点:120.5ºC at 760 mmHg

    熔点:209-214 °C

    闪点:96°C

    稳定性:Stable. Incompatible with strong acids, strong bases, strong oxidizing agents.

    蒸汽压:18.2mmHg at 25°C

    安全说明:S37/39-S26-S37

    危险类别码:R22; R36/37/38

    海关编码:2930909090

    危险品运输编码:3342

    危险类别:4.2

    包装等级:II

    危险品标志:Xn

    简介:PotassiumethylxanthateisanorganosulfurcompoundwiththechemicalformulaCH3CH2OCS2K.Itisapaleyellowpowderthatisusedintheminingindustryfortheseparationofores.Unliketherelatedsodiumethylxanthate,thepotassiumsaltexistsasananhydroussalt.

    用途:在金属选矿中充当捕收剂

    展开

    有机砌块140-89-6
    阿法埃莎 乙基黄原酸钾,97+% Potassiumethylxanthate,97... 现货

     10201.00
    A11450 98%
    有机砌块57-71-6

    CAS号:57-71-6

    品名:二乙酰一肟Diacetylmonoxime

    中文别名:甲基肟乙基甲酮;异亚硝基甲基乙基甲酮;2,3-丁二酮肟;联乙酰一肟;丁二酮单肟;2,3-丁烷二酮-2-肟;双乙酰一肟;2,3-丁二酮一肟;

    英文别名:2,3-Butanedionemonoxime;2,3-Butanedione,monooxime;

    分子式:C4H7NO2

    分子量:101.104

    精确质量:101.048

    Psa:49.66

    RTECS号:EK3150000

    EINECS号:200-348-5

    MDL号:MFCD00002116

    外观与性状:白色结晶粉末

    密度:1.07 g/cm3

    沸点:185-186°C(lit.)

    熔点:75-78°C(lit.)

    闪点:185-186°C

    折射率:1.452

    稳定性:Stable. Incompatible with strong oxidizing agents.

    储存条件:Keep container closed when not in use. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.

    安全说明:S22-S24/25-S36/37/39-S26

    危险类别码:R20/21/22; R36/37/38

    WGK Germany:3

    海关编码:29280090

    危险品标志:Xn

    用途:1.医药中间体。分析试剂。

     57-71-6 详细信息

    有机砌块

    CAS号:57-71-6

    品名:二乙酰一肟Diacetylmonoxime

    中文别名:甲基肟乙基甲酮;异亚硝基甲基乙基甲酮;2,3-丁二酮肟;联乙酰一肟;丁二酮单肟;2,3-丁烷二酮-2-肟;双乙酰一肟;2,3-丁二酮一肟;

    英文别名:2,3-Butanedionemonoxime;2,3-Butanedione,monooxime;

    分子式:C4H7NO2

    分子量:101.104

    精确质量:101.048

    Psa:49.66

    RTECS号:EK3150000

    EINECS号:200-348-5

    MDL号:MFCD00002116

    外观与性状:白色结晶粉末

    密度:1.07 g/cm3

    沸点:185-186°C(lit.)

    熔点:75-78°C(lit.)

    闪点:185-186°C

    折射率:1.452

    稳定性:Stable. Incompatible with strong oxidizing agents.

    储存条件:Keep container closed when not in use. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.

    安全说明:S22-S24/25-S36/37/39-S26

    危险类别码:R20/21/22; R36/37/38

    WGK Germany:3

    海关编码:29280090

    危险品标志:Xn

    用途:1.医药中间体。分析试剂。

    展开

    有机砌块57-71-6
    阿法埃莎 2,3-丁烷二酮一肟,99% 2,3-Butanedionemonoxime,99... 现货

     8822.00
    A14339 99%
    有机砌块117-08-8

    CAS号:117-08-8

    品名:四氯苯二甲酸酐tetrachlorophthalicanhydride

    中文别名:四氯苯甲酸酐;四氯苯酐;四氯邻苯二甲酸酐;

    英文别名:4,5,6,7-Tetrachloro-1,3-isobenzofurandione;4,5,6,7-tetrachloro-2-benzofuran-1,3-dione;1,3-Isobenzofurandione,4,5,6,7-tetrachloro-;TetrachlorophthalicAnhydride;Tetrachlorophthalicanhydride;

    分子式:C8Cl4O3

    分子量:285.896

    精确质量:283.86

    Psa:43.37

    RTECS号:TI3450000

    BRN号:211560

    EINECS号:204-171-4

    MDL号:MFCD00005920

    PubChem号:24848039

    外观与性状:白色结晶粉末

    密度:1.49

    沸点:371°C(lit.)

    熔点:253-257°C(lit.)

    闪点:362°C

    折射率:1.656

    稳定性:Stable. Reacts with water. Combustible. Incompatible with strong oxidizing agents. Air and moisture sensitive.

    储存条件:Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage.

    蒸汽压:1.06E-05mmHg at 25°C

    安全说明:S53-S22-S24-S26-S37/39-S45-S60-S61

    危险类别码:R41; R42/43; R45; R50/53

    WGK Germany:2

    海关编码:2917399090

    危险品运输编码:UN 3077 9/PG 3

    危险类别:9

    包装等级:III

    危险品标志:T

    信号词:Danger

    危险性防范说明:P201; P261; P273; P280; P305 + P351 + P338; P308 + P313

    危险标志:GHS05, GHS08, GHS09

    危险性描述:H317; H318; H334; H350; H373; H410

    简介:TetrachlorophthalicAnhydrideisusedinthesynthesisofnucleosideanalogueswithaspecificstructureasapoptosisinducingactivecompounds.Alsousedinthesynthesisofcarbonicanhydraseinhbitors.

    用途:1.可用于聚酯、环氧树脂,但效果不如四溴苯酐。四氯苯二甲酸酐也是农药(稻瘟酞)、染料、药物、增塑剂、防火漆等有机合成的中间体。用作酞菁类绿色颜料及占吨系染料中间体,也是醇酸树脂的原料。本品用作阻燃型环氧树脂反应性助燃剂和固化剂。本品也是农药、染料、药物、增塑剂、防火漆等有机合成的中间体。

     117-08-8 详细信息

    有机砌块

    CAS号:117-08-8

    品名:四氯苯二甲酸酐tetrachlorophthalicanhydride

    中文别名:四氯苯甲酸酐;四氯苯酐;四氯邻苯二甲酸酐;

    英文别名:4,5,6,7-Tetrachloro-1,3-isobenzofurandione;4,5,6,7-tetrachloro-2-benzofuran-1,3-dione;1,3-Isobenzofurandione,4,5,6,7-tetrachloro-;TetrachlorophthalicAnhydride;Tetrachlorophthalicanhydride;

    分子式:C8Cl4O3

    分子量:285.896

    精确质量:283.86

    Psa:43.37

    RTECS号:TI3450000

    BRN号:211560

    EINECS号:204-171-4

    MDL号:MFCD00005920

    PubChem号:24848039

    外观与性状:白色结晶粉末

    密度:1.49

    沸点:371°C(lit.)

    熔点:253-257°C(lit.)

    闪点:362°C

    折射率:1.656

    稳定性:Stable. Reacts with water. Combustible. Incompatible with strong oxidizing agents. Air and moisture sensitive.

    储存条件:Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage.

    蒸汽压:1.06E-05mmHg at 25°C

    安全说明:S53-S22-S24-S26-S37/39-S45-S60-S61

    危险类别码:R41; R42/43; R45; R50/53

    WGK Germany:2

    海关编码:2917399090

    危险品运输编码:UN 3077 9/PG 3

    危险类别:9

    包装等级:III

    危险品标志:T

    信号词:Danger

    危险性防范说明:P201; P261; P273; P280; P305 + P351 + P338; P308 + P313

    危险标志:GHS05, GHS08, GHS09

    危险性描述:H317; H318; H334; H350; H373; H410

    简介:TetrachlorophthalicAnhydrideisusedinthesynthesisofnucleosideanalogueswithaspecificstructureasapoptosisinducingactivecompounds.Alsousedinthesynthesisofcarbonicanhydraseinhbitors.

    用途:1.可用于聚酯、环氧树脂,但效果不如四溴苯酐。四氯苯二甲酸酐也是农药(稻瘟酞)、染料、药物、增塑剂、防火漆等有机合成的中间体。用作酞菁类绿色颜料及占吨系染料中间体,也是醇酸树脂的原料。本品用作阻燃型环氧树脂反应性助燃剂和固化剂。本品也是农药、染料、药物、增塑剂、防火漆等有机合成的中间体。

    展开

    有机砌块117-08-8
    阿法埃莎 四氯邻苯二甲酸酐,98% Tetrachlorophthalicanhydrid... 现货

     8374.00
    A17404 98%
    有机砌块108-13-4

    CAS号:108-13-4

    品名:丙二酰胺propanediamide

    中文别名:丙二酰胺

    英文别名:Propanediamide;malonicdiamide;Malondiamide;MALONAMIDE;Malonodiamide;Malonicaciddiamide;Malonyldiamide;Carboxamidoacetamide;

    分子式:C3H6N2O2

    分子量:102.092

    精确质量:102.043

    Psa:86.18

    RTECS号:ON9125000

    BRN号:1751401

    EINECS号:203-553-8

    MDL号:MFCD00008034

    PubChem号:24847915

    外观与性状:白色结晶粉末

    密度:1.281 g/cm3

    沸点:460.9ºC at 760 mmHg

    熔点:172-175°C(lit.)

    闪点:232.5ºC

    折射率:1.491

    稳定性:Stable under normal temperatures and pressures.

    储存条件:Store in a cool, dry place. Store in a tightly closed container.

    蒸汽压:1.13E-08mmHg at 25°C

    安全说明:S22-S24/25

    WGK Germany:2

    海关编码:29241900

    简介:Malonamideisusedinthesynthesisofmalonamicacid,malonamateandmalonamidederivativeofsomeheterocycliccompoundswithantiinflammatoryactivity.

    用途:用作有机合成的原料。

     108-13-4 详细信息

    有机砌块

    CAS号:108-13-4

    品名:丙二酰胺propanediamide

    中文别名:丙二酰胺

    英文别名:Propanediamide;malonicdiamide;Malondiamide;MALONAMIDE;Malonodiamide;Malonicaciddiamide;Malonyldiamide;Carboxamidoacetamide;

    分子式:C3H6N2O2

    分子量:102.092

    精确质量:102.043

    Psa:86.18

    RTECS号:ON9125000

    BRN号:1751401

    EINECS号:203-553-8

    MDL号:MFCD00008034

    PubChem号:24847915

    外观与性状:白色结晶粉末

    密度:1.281 g/cm3

    沸点:460.9ºC at 760 mmHg

    熔点:172-175°C(lit.)

    闪点:232.5ºC

    折射率:1.491

    稳定性:Stable under normal temperatures and pressures.

    储存条件:Store in a cool, dry place. Store in a tightly closed container.

    蒸汽压:1.13E-08mmHg at 25°C

    安全说明:S22-S24/25

    WGK Germany:2

    海关编码:29241900

    简介:Malonamideisusedinthesynthesisofmalonamicacid,malonamateandmalonamidederivativeofsomeheterocycliccompoundswithantiinflammatoryactivity.

    用途:用作有机合成的原料。

    展开

    有机砌块108-13-4
    阿法埃莎 丙二酰胺,98% Malonamide,98% 现货

     8935.00
    A17939 98%
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