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AB-NTA free acid AB-NTA free acid, N-(5-Amino-1-carboxypentyl)iminodiacetic acid [CAS: 129179-17-5]
Item #: A459 -

Chemical Name: N-(5-Amino-1-carboxypentyl)iminodiacetic acid CAS: 129179-17-5Appearance: White pale yellowish white powderPurity: ≥97.0% (HPLC)MW: 262.26, C10H18N2O6Storage Condition: ambient temperature Shipping Condition: ambient temperature Product DescriptionAminobutyl-NTA (AB-NTA) free acid replaces AB-NTA (disodium salt form; former Product Code: A296-10). The new free acid form is less hygroscopic than the disodium salt form. Dissolving the new acid form in a buffer involves the...

BAPTA BAPTA, O,O’-Bis(2-aminophenyl)ethyleneglycol-N,N,N’,N’-tetraacetic acid, tetrapotassium salt, hydrate [CAS: 85233-19-8(free acid)]
Item #: B019 -

Chemical Name: O,O EBis(2-aminophenyl)ethyleneglycol-N,N,N',N'-tetraacetic acid, tetrapotassium salt, hydrate CAS: 85233-19-8(free acid)Appearance: White powder or crystalline powderPurity: ≥95.0% (Titration)MW: 628.79, C22H20K4N2O10Storage Condition: ambient temperatureShipping Condition: ambient temperatureProduct DescriptionBAPTA is a calcium-selective chelator developed by Dr. Tsien. It has logKCa=6.97 and logKMg=1.77. The basic chelating unit resembles that of EGTA, but the two aliphatic...

BAPTA-AM BAPTA-AM, O,O’-Bis(2-aminophenyl)ethyleneglycol-N,N,N’,N’-tetraacetic acid, tetraacetoxymethyl ester [CAS: 126150-97-8]
Item #: B018 -

Chemical Name: O,O EBis(2-aminophenyl)ethyleneglycol-N,N,N',N'-tetraacetic acid, tetraacetoxymethyl ester CAS: 126150-97-8Appearance: White powder Purity: ≥98.0% (HPLC)MW: 764.68, C34H40N2O18Storage Condition: -20ºC, protect from lightShipping Condition: ambient temperatureProduct DescriptionBAPTA is a calcium-selective chelator developed by Dr. Tsien. It has logKCa=6.97 and logKMg=1.77. The basic chelating unit resembles that of EGTA, but the two aliphatic nitrogen atoms are replaced by...

DTPA anhydride DTPA anhydride, Diethylenetriamine-N,N,N’,N”,N”-pentaacetic dianhydride [CAS: 23911-26-4]
Item #: D033 -

Chemical Name: Diethylenetriamine-N,N,N',N'',N''-pentaacetic dianhydrideCAS: 23911-26-4Appearance: Slightly yellow or yellowish-brown powderPurity: ≥99.0% (Titration)MW: 357.32, C14H19N3O8Storage Condition: ambient temperatureShipping Condition: ambient temperature Product Description of Amine-Reactive BiotinsDTPA anhydride is utilized to add chelate functions to molecules or surfaces with amine groups. After adding chelate functions, metal ions such as radioisotopes can be introduced to...

EMCS EMCS, N-(6-Maleimidocaproyloxy)succinimide [CAS: 55750-63-5]
Item #: E018 -

Chemical Name: N-(6-Maleimidocaproyloxy)succinimide CAS: 55750-63-5Appearance: white or slightly yellow powderPurity: ≥90.0% (HPLC)MW: 308.29, C14H16N2O6Storage Condition: 0-5ºCShipping Condition: ambient temperature Cross-linking ReactionProduct Description Hetero-bifunctional cross-linking reagents have activated esters and maleimide reactive groups. These functional groups react with amines and sulfhydryl groups of proteins, respectively. Enzyme-labeled haptens are prepared using...

GMBS GMBS, N-(4-Maleimidobutyryloxy)succinimide [CAS: 80307-12-6]
Item #: G005 -

Chemical Name: N-(4-Maleimidobutyryloxy)succinimideCAS: 80307-12-6Appearance: White powderPurity: ≥95.0% (HPLC)MW: 280.23, C12H12N2O6Storage Condition: 0-5ºCShipping Condition: ambient temperature Cross-linking ReactionProduct Description Hetero-bifunctional cross-linking reagents have activated esters and maleimide reactive groups. These functional groups react with amines and sulfhydryl groups of proteins, respectively. Enzyme-labeled haptens are prepared using hetero-bifunctional...

HIDA HIDA, N-(2-Hydroxyethyl)iminodiacetic acid [CAS: 93-62-9]
Item #: H006 -

ChemicalName: N-(2-Hydroxyethyl)iminodiacetic acid CAS: 93-62-9Appearance: white crystalline powderPurity: ≥98.0% (Titration)MW: 177.16, C6H11NO5Storage Condition: ambient temperatureShipping Condition: ambient temperatureChemical StructureIntroductionOrganic compounds that coordinate metal ions into circular structures (chelate circles) are called chelating reagents. Most  chelating reagents include oxygen, nitrogen, or sulfur atoms in their molecules. Chelate structures with five or six...

HMCS HMCS, N-(8-Maleimidocapryloxy)succinimide
Item #: H257 -

Chemical Name: N-(8-Maleimidocapryloxy)succinimideAppearance: White powder or cystaline powderPurity: ≥90.0% (HPLC)MW: 336.34, C16H20N2O6Storage Condition: 0-5ºC, protect from moisture Shipping Condition: with dry ice or blue iceCross-linking ReactionProduct Description Hetero-bifunctional cross-linking reagents have activated esters and maleimide reactive groups. These functional groups react with amines and sulfhydryl groups of proteins, respectively. Enzyme-labeled haptens are...

IDA IDA, Iminodiacetic acid [CAS: 142-73-4]
Item #: I001 -

ChemicalName: Iminodiacetic acid CAS: 142-73-4Appearance: white crystalline powderPurity: ≥99.0% (Titration)MW: 133.10, C4H7NO4Storage Condition: ambient temperatureShipping Condition: ambient temperatureChemical StructureIntroductionOrganic compounds that coordinate metal ions into circular structures (chelate circles) are called chelating reagents. Most  chelating reagents include oxygen, nitrogen, or sulfur atoms in their molecules. Chelate structures with five or six member rings form...

Isothiocyanobenzyl-EDTA Isothiocyanobenzyl-EDTA, 1-(4-Isothiocyanatobenzyl)ethylenediamine-N,N,N’,N’- tetraacetic acid [CAS: 105394-74-9]
Item #: M030 -

Chemical Name: 1-(4-Isothiocyanatobenzyl)ethylenediamine-N,N,N EN Etetraacetic acidCAS: 105394-74-9Appearance: Slightly yellowish-brown powder Purity: ≥90.0% (HPLC)MW: 439.44, C18H21N3O8SStorage Condition: -20oCShipping Condition: ambient temperature Product Description of Amine-Reactive BiotinsIsothiocyanobenzyl-EDTA adds EDTA moieties to proteins through their amine groups. The EDTA-tagged protein can then be labeled with heavy metal ions and radioactive metals, such as 111In and...

Isothiocyanobenzyl-NTA 16-Amino-1-hexadecanethiol, hydrochloride, 16-Amino-1-hexadecanethiol, hydrochloride
Item #: I279 -

Chemical Name: N-[5-(4-Isothiocyanatobenzyl)amido-1-carboxypentyl]iminodiacetic acidAppearance: White or slightly yellow powderPurity: ≥ 90.0% (HPLC)MW: 437.47, C19H23N3O7SStorage Condition: -20°CShipping Condition: ambient temperatureProduct DescriptionIsothiocyanobenzyl-NTA is utilized to modify the surfaces on which amine groups are attached. Through the NTA moiety attached on the surface, genetically expressed protein, bearing a hexahistidine extension at its terminus, can be...

KMUS KMUS, N-(11-Maleimidoundecanoyloxy)succinimide [CAS: 87981-04-2]
Item #: K214 -

Chemical Name: N-(11-Maleimidoundecanoyloxy)succinimide CAS: 87981-04-2Appearance: White powder or crystalline powderPurity: ≥90.0% (HPLC)MW: 378.42, C19H26N2O6Storage Condition: 0-5ºC, protect from moistureShipping Condition: ambient temperature Cross-linking ReactionProduct Description Hetero-bifunctional cross-linking reagents have activated esters and maleimide reactive groups. These functional groups react with amines and sulfhydryl groups of proteins, respectively. Enzyme-labeled...

Maleimido-C3-NTA Maleimido-C3-NTA, N-(5-(3-Maleimidopropylamido)-1-carboxy-pentyl)iminodiacetic acid, disodium salt, monohydrate
Item #: M035 -

Chemical Name: N-(5-(3-Maleimidopropylamido)-1-carboxy-pentyl)iminodiacetic acid, disodium salt, monohydrateAppearance: White pale yellowish-white powder Purity: ≥97.0% (HPLC)MW: 489.38 C18H23N3Na2O9 · H2OStorage Condition: 0-5ºC Shipping Condition: ambient temperature Product DescriptionMaleimido-C3-NTA is utilized to modify the surfaces on which thiol groups are attached. Through the NTA moiety attached to the surface, genetically expressed protein, bearing a hexahistidine...

SPDP SPDP, N-Succinimidyl 3-(2-pyridyldithio)propionate [CAS: 68181-17-9]
Item #: S291 -

Chemical Name: N-Succinimidyl 3-(2-pyridyldithio)propionate CAS: 68181-17-9 Appearance: Amine and sulfhydryl group cross-linkingPurity: ≥98.0% (HPLC)MW: 312.37, C12H12N2O4S2Storage Condition: 0-5ºC, Shipping Condition: ambient temperatureProduct Description SPDP, a hetero-bifunctional reagent, is useful for bridging two different proteins, such as enzymes and antibodies. SPDP first reacts with a protein molecule through its amino groups. SPDP introduces a pyridyl disulfide moiety to the...

Sulfo-EMCS Sulfo-EMCS, N-(6-Maleimidocaproyloxy)sulfosuccinimide, sodium salt
Item #: S024 -

Chemical Name: N-(6-Maleimidocaproyloxy)sulfosuccinimide, sodium salt CAS: 103848-61-9 (free acid) Appearance: White or slightly yellowish-pink powderPurity: ≥90.0% (HPLC)MW: 410.33, C14H15N2NaO9SStorage Condition: 0-5oC Shipping Condition: blue iceCross-linking ReactionProduct Description Hetero-bifunctional cross-linking reagents have activated esters and maleimide reactive groups. These functional groups react with amines and sulfhydryl groups of proteins, respectively....

Sulfo-GMBS Sulfo-GMBS, N-(4-Maleimidobutyryloxy)sulfosuccinimide, sodium salt
Item #: S025 -

Chemical Name: N-(4-Maleimidocaproyloxy)sulfosuccinimide, sodium salt Appearance: White or slightly yellowish-pink powderPurity: ≥90.0% (HPLC)MW: 382.28, C12H11N2NaO9SStorage Condition: 0-5oCShipping Condition: blue iceCross-linking ReactionProduct Description Hetero-bifunctional cross-linking reagents have activated esters and maleimide reactive groups. These functional groups react with amines and sulfhydryl groups of proteins, respectively. Enzyme-labeled haptens are prepared using...

Sulfo-HMCS Sulfo-HMCS, N-(8-Maleimidocapryloxy)sulfosuccinimide, sodium salt [CAS: 211236-35-0]
Item #: S026 -

Chemical Name: N-(8-Maleimidocaproyloxy)sulfosuccinimide, sodium salt CAS: 211236-35-0 Appearance: white or slightly yellowish-pink powderPurity: ≥90.0% (HPLC)MW: 438.39, C16H19N2NaO9SStorage Condition: 0-5ºC, protect from moistureShipping Condition: blue iceCross-linking ReactionProduct Description Hetero-bifunctional cross-linking reagents have activated esters and maleimide reactive groups. These functional groups react with amines and sulfhydryl groups of proteins, respectively....

Sulfo-KMUS Sulfo-KMUS, N-(11-Maleimidoundecanoyloxy)sulfosuccinimide, sodium salt [CAS: 211236-68-9]
Item #: S250 -

Chemical Name: N-(11-Maleimidoundecanoyloxy)sulfosuccinimide, sodium saltCAS: 211236-68-9 Appearance: White or slightly yellowish-pink powderPurity: ≥90.0% (HPLC)MW: 480.47, C19H25N2NaO9SStorage Condition: 0-5ºC, protect from moistureShipping Condition: blue iceCross-linking ReactionProduct Description Hetero-bifunctional cross-linking reagents have activated esters and maleimide reactive groups. These functional groups react with amines and sulfhydryl groups of proteins, respectively....

TPEN TPEN, N,N,N’,N’-Tetrakis(2-pyridylmethyl)ethylenediamine [CAS: 16858-02-9]
Item #: T040 -

ChemicalName: N,N,N',N'-tetrakis(2-pyridylmethyl)ethylenediamine CAS: 16858-02-9Appearance: white or slightly yellow crystalsPurity: ≥98.0% (Titration)MW: 424.54, C26H28N6Storage Condition: ambient temperatureShipping Condition: ambient temperatureProduct DescriptionTPEN is a highly selective chelator of transition metal cations because the pyridine groups act as soft electron donators. TPEN is thus utilized for masking transition metal cations in fluorescent calcium monitoring. The masking...