筛选出 21 条数据

    品牌 产品 货期 价格 货号 规格 /
    有机砌块615-28-1

    CAS号:615-28-1

    品名:邻苯二胺盐酸盐OPDEASY-tablets

    中文别名:1,2-二氨基苯盐酸;盐酸邻苯二胺,1,2-苯二胺二盐酸盐;

    英文别名:benzene-1,2-diamine,dihydrochloride;1,2-Benzenediamine,dihydrochloride;

    分子式:C6H10Cl2N2

    分子量:181.063

    精确质量:180.022

    Psa:52.04

    MDL号:MFCD00012966

    密度:

    沸点:257ºC at 760 mmHg

    熔点:258ºC (dec.)(lit.)

    闪点:124.9ºC

    稳定性:Stable. Incompatible with strong oxidizing agents.

    储存条件:库房通风低温干燥,与食品原料分开储运

    危险类别码:R22; R40; R43; R51/53; R68; R50/53; R36; R25; R20/21; R36/37/38

    海关编码:2921590090

    危险品运输编码:UN 2811 6.1/PG 3

    危险类别:6.1(b)

    包装等级:III

    危险品标志:Xn; N; T

    信号词:Danger

    危险性防范说明:P273; P280; P301 + P310; P305 + P351 + P338; P501

    危险标志:GHS06, GHS08, GHS09

    危险性描述:H301; H312; H317; H319; H332; H341; H351; H410

    用途:2、用途邻苯二胺盐酸盐是一种过氧化酶底物,用于ELISA。这种底物产生一种可溶性橙棕色的终产物。

     615-28-1 详细信息

    有机砌块

    CAS号:615-28-1

    品名:邻苯二胺盐酸盐OPDEASY-tablets

    中文别名:1,2-二氨基苯盐酸;盐酸邻苯二胺,1,2-苯二胺二盐酸盐;

    英文别名:benzene-1,2-diamine,dihydrochloride;1,2-Benzenediamine,dihydrochloride;

    分子式:C6H10Cl2N2

    分子量:181.063

    精确质量:180.022

    Psa:52.04

    MDL号:MFCD00012966

    密度:

    沸点:257ºC at 760 mmHg

    熔点:258ºC (dec.)(lit.)

    闪点:124.9ºC

    稳定性:Stable. Incompatible with strong oxidizing agents.

    储存条件:库房通风低温干燥,与食品原料分开储运

    危险类别码:R22; R40; R43; R51/53; R68; R50/53; R36; R25; R20/21; R36/37/38

    海关编码:2921590090

    危险品运输编码:UN 2811 6.1/PG 3

    危险类别:6.1(b)

    包装等级:III

    危险品标志:Xn; N; T

    信号词:Danger

    危险性防范说明:P273; P280; P301 + P310; P305 + P351 + P338; P501

    危险标志:GHS06, GHS08, GHS09

    危险性描述:H301; H312; H317; H319; H332; H341; H351; H410

    用途:2、用途邻苯二胺盐酸盐是一种过氧化酶底物,用于ELISA。这种底物产生一种可溶性橙棕色的终产物。

    展开

    有机砌块615-28-1
    Sigma 邻苯二胺二盐酸盐 o-Phenylenediaminedihydroch... 请咨询 询价 P8287 tablet,10mgsubstratepertablettablet,10mgsubstratepertablet
    Sigma 邻苯二胺二盐酸盐 o-Phenylenediaminedihydroch... 请咨询 询价 P8806 tablet,3mgsubstratepertablettablet,3mgsubstratepertablet
    Sigma 邻苯二胺二盐酸盐 o-Phenylenediaminedihydroch... 请咨询 询价 P4664 tablet,15mgsubstratepertablettablet,15mgsubstratepertablet
    Sigma 邻苯二胺二盐酸盐 o-Phenylenediaminedihydroch... 请咨询 询价 P8412 tablet,30mgsubstratepertablettablet,30mgsubstratepertablet
    Sigma 邻苯二胺二盐酸盐 o-Phenylenediaminedihydroch... 请咨询 询价 P1063 tablet,60mgsubstratepertablettablet,60mgsubstratepertablet
    Sigma 邻苯二胺二盐酸盐 o-Phenylenediaminedihydroch... 请咨询 询价 P3804 tablet,5mgsubstratepertablettablet,5mgsubstratepertablet
    Sigma 邻苯二胺二盐酸盐 o-Phenylenediaminedihydroch... 请咨询 询价 P6662 tablet,1mgsubstratepertablettablet,1mgsubstratepertablet
    Sigma 邻苯二胺二盐酸盐 o-Phenylenediaminedihydroch... 请咨询 询价 P6787 tablet,2mgsubstratepertablettablet,2mgsubstratepertablet
    Sigma 邻苯二胺二盐酸盐 o-Phenylenediaminedihydroch... 请咨询 询价 P6912 tablet,5mgsubstratepertablettablet,5mgsubstratepertablet
    Sigma 邻苯二胺二盐酸盐 o-Phenylenediaminedihydroch... 请咨询 询价 P7288 tablet,20mgsubstratepertablettablet,20mgsubstratepertablet
    Sigma 邻苯二胺二盐酸盐 o-Phenylenediaminedihydroch... 请咨询 询价 P8787 tablet,4mgsubstratepertablettablet,4mgsubstratepertablet
    有机砌块333338-18-4

    CAS号:333338-18-4

    品名:4-硝基苯磷酸盐二钠盐六水合物disodium,(4-nitrophenyl)phosphate,hexahydrate

    中文别名:磷酸-4-硝基苯酯二钠盐六水合物;对硝基苯磷酸二钠;磷酸-4-硝基苯酯二钠盐;对硝基苯磷酸二钠六水合物;4-硝基苯基磷酸二钠盐六水物;

    英文别名:Phosphatasesubstrate;4-NitrophenylPhosphate,DisodiumSaltHexahydrate;Sodium4-nitrophenylphosphatehexahydrate;DisodiuM4-NitrophenylphosphateHexahydrate;p-Nitrophenylphosphatedisodiumhexahydrate;PhosphoricAcid4-NitrophenylEsterDisodiumSaltHexahydrate;pNPPdisodiumhexahydrate;Disodium4-NitrophenylPhosphateHexahydrate;p-Nitrophenylphosphatedisodiumhexahydrate,Disodium4-nitrophenylphosphatehexahydrate,di;4-Nitrophenylphosphatedisodiumsalthexahydrate;Disodium4-nitrophenylphosphatehexahydrate;di-Sodium4-nitrophenylphosphate;pNPPdisodiumsalthexahydrate;

    分子式:C6H16NNa2O12P

    分子量:371.144

    精确质量:371.021

    Psa:183.43

    密度:

    沸点:457.8ºC at 760mmHg

    熔点:&>300ºC(lit.)

    闪点:230.7ºC

    储存条件:2-8ºC

    安全说明:S24/25

    WGK Germany:3

     333338-18-4 详细信息

    有机砌块

    CAS号:333338-18-4

    品名:4-硝基苯磷酸盐二钠盐六水合物disodium,(4-nitrophenyl)phosphate,hexahydrate

    中文别名:磷酸-4-硝基苯酯二钠盐六水合物;对硝基苯磷酸二钠;磷酸-4-硝基苯酯二钠盐;对硝基苯磷酸二钠六水合物;4-硝基苯基磷酸二钠盐六水物;

    英文别名:Phosphatasesubstrate;4-NitrophenylPhosphate,DisodiumSaltHexahydrate;Sodium4-nitrophenylphosphatehexahydrate;DisodiuM4-NitrophenylphosphateHexahydrate;p-Nitrophenylphosphatedisodiumhexahydrate;PhosphoricAcid4-NitrophenylEsterDisodiumSaltHexahydrate;pNPPdisodiumhexahydrate;Disodium4-NitrophenylPhosphateHexahydrate;p-Nitrophenylphosphatedisodiumhexahydrate,Disodium4-nitrophenylphosphatehexahydrate,di;4-Nitrophenylphosphatedisodiumsalthexahydrate;Disodium4-nitrophenylphosphatehexahydrate;di-Sodium4-nitrophenylphosphate;pNPPdisodiumsalthexahydrate;

    分子式:C6H16NNa2O12P

    分子量:371.144

    精确质量:371.021

    Psa:183.43

    密度:

    沸点:457.8ºC at 760mmHg

    熔点:&>300ºC(lit.)

    闪点:230.7ºC

    储存条件:2-8ºC

    安全说明:S24/25

    WGK Germany:3

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    有机砌块333338-18-4
    Sigma (-20°C)4-硝基苯磷酸盐二钠盐六水合物 4-Nitrophenylphosphatediso... 请咨询 询价 N9389 tablettablet
    Sigma (-20°C)4-硝基苯磷酸盐二钠盐六水合物 4-Nitrophenylphosphatediso... 请咨询 询价 N2765 tablettablet
    Sigma (-20°C)4-硝基苯磷酸盐二钠盐六水合物 4-Nitrophenylphosphatediso... 请咨询 询价 N2640 tablettablet
    Sigma (-20°C)Phosphatasesubstrate Phosphatasesubstrate 请咨询 询价 S0942 5mgtablets5mgtablets
    有机砌块564483-18-7

    CAS号:564483-18-7

    品名:2-二环己基磷-2,4,6-三异丙基联苯2-(Dicyclohexylphosphino)-2,4,6-Triisopropylbiphenyl

    中文别名:2-二环己;2-双环己基膦-2’,4’,6’-三异丙基联苯;2-二环己基磷-2',4',6'-三异丙基联苯;

    英文别名:dicyclohexyl-[2-[2,4,6-tri(propan-2-yl)phenyl]phenyl]phosphane;

    分子式:C33H49P

    分子量:476.716

    精确质量:476.357

    Psa:13.59

    MDL号:MFCD04117682

    外观与性状:白色结晶粉末

    密度:

    沸点:569.8ºC at 760 mmHg

    熔点:187-190°C(lit.)

    闪点:317.7ºC

    安全说明:S37/39-S26-S36/37

    危险类别码:R22; R36/37/38

    WGK Germany:3

    海关编码:2902909090

    危险品标志:Xn

    信号词:Warning

    危险性防范说明:P281

    危险标志:GHS08

    危险性描述:H351

    简介:XPhosisanorganophosphoruscompoundderivedfrombiphenyl.ItspalladiumcomplexesexhibithighactivityforBuchwald-Hartwigaminationreactionsinvolvingarylchloridesandaryltosylates.Bothpalladiumandcoppercomplexesofthecompoundexhibithighactivityforthecouplingofarylhalidesandaryltosylateswithvariousamides.Theligandhasconvenienthandlingcharacteristicssinceitisair-stable.

     564483-18-7 详细信息

    有机砌块

    CAS号:564483-18-7

    品名:2-二环己基磷-2,4,6-三异丙基联苯2-(Dicyclohexylphosphino)-2,4,6-Triisopropylbiphenyl

    中文别名:2-二环己;2-双环己基膦-2’,4’,6’-三异丙基联苯;2-二环己基磷-2',4',6'-三异丙基联苯;

    英文别名:dicyclohexyl-[2-[2,4,6-tri(propan-2-yl)phenyl]phenyl]phosphane;

    分子式:C33H49P

    分子量:476.716

    精确质量:476.357

    Psa:13.59

    MDL号:MFCD04117682

    外观与性状:白色结晶粉末

    密度:

    沸点:569.8ºC at 760 mmHg

    熔点:187-190°C(lit.)

    闪点:317.7ºC

    安全说明:S37/39-S26-S36/37

    危险类别码:R22; R36/37/38

    WGK Germany:3

    海关编码:2902909090

    危险品标志:Xn

    信号词:Warning

    危险性防范说明:P281

    危险标志:GHS08

    危险性描述:H351

    简介:XPhosisanorganophosphoruscompoundderivedfrombiphenyl.ItspalladiumcomplexesexhibithighactivityforBuchwald-Hartwigaminationreactionsinvolvingarylchloridesandaryltosylates.Bothpalladiumandcoppercomplexesofthecompoundexhibithighactivityforthecouplingofarylhalidesandaryltosylateswithvariousamides.Theligandhasconvenienthandlingcharacteristicssinceitisair-stable.

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    有机砌块564483-18-7
    Aldrich X-Phos,ChemDose片 X-Phos,ChemDosetablets 请咨询客服 询价 685151 Loading:2mumolpertablet
    有机砌块657408-07-6

    CAS号:657408-07-6

    品名:2-双环己基膦-2',6'-二甲氧基联苯2-Dicyclohexylphosphino-2’,6’-dimethoxybiphenyl

    中文别名:2-二环己基膦-2',6'-二甲氧基联苯;二环己基(2',6'-二甲氧基-[1,1'-联苯]-2-基)膦;2-双环己基膦-2’,6’-二甲氧基-1,1’-二联苯;

    英文别名:dicyclohexyl-[2-(2,6-dimethoxyphenyl)phenyl]phosphane;

    分子式:C26H35O2P

    分子量:410.529

    精确质量:410.237

    Psa:32.05

    MDL号:MFCD05861611

    密度:

    沸点:513.3ºC at 760 mmHg

    熔点:164-166ºC

    安全说明:S24/25-S36-S37

    危险类别码:R40

    海关编码:2922299090

    危险品标志:Xn

    信号词:Warning

    危险性防范说明:P281

    危险标志:GHS08

    危险性描述:H351

    简介:SPhosisanorganophosphoruscompoundderivedfrombiphenyl.ItspalladiumcomplexesexhibithighactivityforSuzukicouplingreactionsinvolvingarylchlorides,whichareunreactivewithpalladiumcomplexesofmostotherphosphineligands.Theligandhasconvenienthandlingcharacteristicssinceitisair-stable.

    用途:作为配体,用于Buchwald,Suzuki等偶联反应中,以及环加成反应中

     657408-07-6 详细信息

    有机砌块

    CAS号:657408-07-6

    品名:2-双环己基膦-2',6'-二甲氧基联苯2-Dicyclohexylphosphino-2’,6’-dimethoxybiphenyl

    中文别名:2-二环己基膦-2',6'-二甲氧基联苯;二环己基(2',6'-二甲氧基-[1,1'-联苯]-2-基)膦;2-双环己基膦-2’,6’-二甲氧基-1,1’-二联苯;

    英文别名:dicyclohexyl-[2-(2,6-dimethoxyphenyl)phenyl]phosphane;

    分子式:C26H35O2P

    分子量:410.529

    精确质量:410.237

    Psa:32.05

    MDL号:MFCD05861611

    密度:

    沸点:513.3ºC at 760 mmHg

    熔点:164-166ºC

    安全说明:S24/25-S36-S37

    危险类别码:R40

    海关编码:2922299090

    危险品标志:Xn

    信号词:Warning

    危险性防范说明:P281

    危险标志:GHS08

    危险性描述:H351

    简介:SPhosisanorganophosphoruscompoundderivedfrombiphenyl.ItspalladiumcomplexesexhibithighactivityforSuzukicouplingreactionsinvolvingarylchlorides,whichareunreactivewithpalladiumcomplexesofmostotherphosphineligands.Theligandhasconvenienthandlingcharacteristicssinceitisair-stable.

    用途:作为配体,用于Buchwald,Suzuki等偶联反应中,以及环加成反应中

    展开

    有机砌块657408-07-6
    Aldrich S-Phos,ChemDose片 S-Phos,ChemDosetablets 请咨询客服 询价 685585 Loading:2mumolpertablet
    有机砌块538-75-0

    CAS号:538-75-0

    品名:二环己基碳二亚胺1,3-dicyclohexylcarbodiimide

    中文别名:N,N'-二环己基碳酰亚胺;二环己;N,N’-二环己基碳酰亚胺;

    英文别名:N,N'-Dicyclohexylcarbodimide;dccsolution;DCC;N,N‘-Dicyclohexylcarbodimide;N,N'-methanediylidenedicyclohexanamine;dicyclohexyl-carbodiimide;DCC/DCCI;N,N’-Dicyclohexylcarbodiimide(DCC);Dicyclimide;1,3-di-cyclohexylcarbodiimide;Cyclohexanamine,N,N‘-methanetetraylbis-;DCCI;Dicyclohexylcarbodiimide;N,N'-Methanediylidenedicyclohexanamine;N,N‘-Dicyclohexylcarbodiimide;DCCD;

    分子式:C13H22N2

    分子量:206.327

    精确质量:206.178

    Psa:24.72

    RTECS号:FF2160000

    UNII号:0T1427205E

    外观与性状:无色固体

    密度:1.247g/mLat 25°C

    沸点:122-124°C6mm Hg(lit.)

    熔点:34-35°C(lit.)

    闪点:190°F

    折射率:n20/D 1.48

    稳定性:Stable, but moisture sensitive. Combustible. Incompatible with strong oxidizing agents. Avoid exposure to air or moisture.

    储存条件:Store at RT.

    安全说明:S26-S36/37/39-S45-S41-S24-S37/39-S24/25-S36-S16-S53

    危险类别码:R21; R36/38; R41; R43

    WGK Germany:3

    海关编码:29252000

    危险品运输编码:UN 2922 8/PG 2

    危险类别:6.1

    包装等级:II

    危险品标志:Xn

    信号词:Danger

    危险性防范说明:P280; P301 + P312 + P330; P302 + P352 + P312; P305 + P351 + P338 + P310

    危险标志:GHS05, GHS06, GHS08

    危险性描述:H302; H311; H317; H318; H351

    简介:N,N'-Dicyclohexylcarbodiimideisacarbodiimideusedtocoupleaminoacidsduringpeptidesynthesis.N,N'-Dicyclohexylcarbodiimideisusedasadehydratingagentforthepreparationofamides,ketones,nitrilesaswellasintheinversionandesterificationofsecondaryalcohols.

    用途:用作生化试剂和有机合成脱水缩合剂。

     538-75-0 详细信息

    有机砌块

    CAS号:538-75-0

    品名:二环己基碳二亚胺1,3-dicyclohexylcarbodiimide

    中文别名:N,N'-二环己基碳酰亚胺;二环己;N,N’-二环己基碳酰亚胺;

    英文别名:N,N'-Dicyclohexylcarbodimide;dccsolution;DCC;N,N‘-Dicyclohexylcarbodimide;N,N'-methanediylidenedicyclohexanamine;dicyclohexyl-carbodiimide;DCC/DCCI;N,N’-Dicyclohexylcarbodiimide(DCC);Dicyclimide;1,3-di-cyclohexylcarbodiimide;Cyclohexanamine,N,N‘-methanetetraylbis-;DCCI;Dicyclohexylcarbodiimide;N,N'-Methanediylidenedicyclohexanamine;N,N‘-Dicyclohexylcarbodiimide;DCCD;

    分子式:C13H22N2

    分子量:206.327

    精确质量:206.178

    Psa:24.72

    RTECS号:FF2160000

    UNII号:0T1427205E

    外观与性状:无色固体

    密度:1.247g/mLat 25°C

    沸点:122-124°C6mm Hg(lit.)

    熔点:34-35°C(lit.)

    闪点:190°F

    折射率:n20/D 1.48

    稳定性:Stable, but moisture sensitive. Combustible. Incompatible with strong oxidizing agents. Avoid exposure to air or moisture.

    储存条件:Store at RT.

    安全说明:S26-S36/37/39-S45-S41-S24-S37/39-S24/25-S36-S16-S53

    危险类别码:R21; R36/38; R41; R43

    WGK Germany:3

    海关编码:29252000

    危险品运输编码:UN 2922 8/PG 2

    危险类别:6.1

    包装等级:II

    危险品标志:Xn

    信号词:Danger

    危险性防范说明:P280; P301 + P312 + P330; P302 + P352 + P312; P305 + P351 + P338 + P310

    危险标志:GHS05, GHS06, GHS08

    危险性描述:H302; H311; H317; H318; H351

    简介:N,N'-Dicyclohexylcarbodiimideisacarbodiimideusedtocoupleaminoacidsduringpeptidesynthesis.N,N'-Dicyclohexylcarbodiimideisusedasadehydratingagentforthepreparationofamides,ketones,nitrilesaswellasintheinversionandesterificationofsecondaryalcohols.

    用途:用作生化试剂和有机合成脱水缩合剂。

    展开

    有机砌块538-75-0
    Aldrich N,N′-二环己基碳二亚胺,ChemDose片剂 N,N-Dicyclohexylcarbodiimide... 请咨询客服 询价 685178 Loading:0.15mmolpertablet
    有机砌块604-44-4

    CAS号:604-44-4

    品名:4-氯-1-萘酚4-CHLORO-1-NAPHTHOL

    中文别名:氯萘酚;4-氯-1-萘酚(4C1N);4-氯-α-萘酚;

    英文别名:4ClN;1-Naphthalenol,4-chloro-;4-chloronaphthalen-1-ol;

    分子式:C10H7ClO

    分子量:178.615

    精确质量:178.019

    Psa:20.23

    EINECS号:210-068-5

    MDL号:MFCD00003974

    密度:1.333g/cm3

    沸点:332.1ºC at 760 mmHg

    熔点:118-121°C(lit.)

    闪点:73°C

    折射率:1.684

    储存条件:2-8ºC

    安全说明:S26-S36-S45-S36/37

    危险类别码:R36/37/38

    WGK Germany:3

    海关编码:2908199090

    危险品运输编码:UN 2810 6.1/PG 3

    危险品标志:Xi

    用途:二、用途:电泳测试和过氧化物酶染色

     604-44-4 详细信息

    有机砌块

    CAS号:604-44-4

    品名:4-氯-1-萘酚4-CHLORO-1-NAPHTHOL

    中文别名:氯萘酚;4-氯-1-萘酚(4C1N);4-氯-α-萘酚;

    英文别名:4ClN;1-Naphthalenol,4-chloro-;4-chloronaphthalen-1-ol;

    分子式:C10H7ClO

    分子量:178.615

    精确质量:178.019

    Psa:20.23

    EINECS号:210-068-5

    MDL号:MFCD00003974

    密度:1.333g/cm3

    沸点:332.1ºC at 760 mmHg

    熔点:118-121°C(lit.)

    闪点:73°C

    折射率:1.684

    储存条件:2-8ºC

    安全说明:S26-S36-S45-S36/37

    危险类别码:R36/37/38

    WGK Germany:3

    海关编码:2908199090

    危险品运输编码:UN 2810 6.1/PG 3

    危险品标志:Xi

    用途:二、用途:电泳测试和过氧化物酶染色

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    有机砌块604-44-4
    Sigma (-20°C)4-氯-1-萘酚 4-Chloro-1-naphthol 请咨询 询价 C6788 tablettablet
    有机砌块64285-73-0

    CAS号:64285-73-0

    品名:3,3′,5,5′-四甲基联苯胺二盐酸盐3,3',5,5'-Tetramethylbenzidinedihydrochloride

    中文别名:二水3,3',5,5'-四甲基联苯胺二盐酸;3,3',5,5'-四甲基联苯胺二盐酸盐;四甲基联苯胺二盐酸;3,3',5,5'-四甲基联苯胺盐酸盐;3,3,5,5-四甲基联苯胺盐酸盐;TMB盐酸盐;

    英文别名:4-(4-amino-3,5-dimethylphenyl)-2,6-dimethylaniline,dihydrochloride;

    分子式:C16H22Cl2N2

    分子量:313.265

    精确质量:312.116

    Psa:52.04

    MDL号:MFCD00012961

    外观与性状:白色至淡黄色粉末

    密度:

    沸点:368.6ºC at 760 mmHg

    熔点:≥300°C

    闪点:210.8ºC

    稳定性:Stable under normal temperatures and pressures.

    储存条件:2-8ºC

    安全说明:S22-S24/25

    危险类别码:R40

    WGK Germany:3

    海关编码:29215990

    危险品标志:Xn

     64285-73-0 详细信息

    有机砌块

    CAS号:64285-73-0

    品名:3,3′,5,5′-四甲基联苯胺二盐酸盐3,3',5,5'-Tetramethylbenzidinedihydrochloride

    中文别名:二水3,3',5,5'-四甲基联苯胺二盐酸;3,3',5,5'-四甲基联苯胺二盐酸盐;四甲基联苯胺二盐酸;3,3',5,5'-四甲基联苯胺盐酸盐;3,3,5,5-四甲基联苯胺盐酸盐;TMB盐酸盐;

    英文别名:4-(4-amino-3,5-dimethylphenyl)-2,6-dimethylaniline,dihydrochloride;

    分子式:C16H22Cl2N2

    分子量:313.265

    精确质量:312.116

    Psa:52.04

    MDL号:MFCD00012961

    外观与性状:白色至淡黄色粉末

    密度:

    沸点:368.6ºC at 760 mmHg

    熔点:≥300°C

    闪点:210.8ºC

    稳定性:Stable under normal temperatures and pressures.

    储存条件:2-8ºC

    安全说明:S22-S24/25

    危险类别码:R40

    WGK Germany:3

    海关编码:29215990

    危险品标志:Xn

    展开

    有机砌块64285-73-0
    Sigma 3,3′,5,5′-四甲基联苯胺二盐酸盐 3,3,5,5-Tetramethylbenzidine... 请咨询 询价 T3405 tablet,1mgsubstratepertablettablet,1mgsubstratepertablet
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