Standards, B

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  • Bicinchoninic Acid (BCA)

    bioWORLD

    A reagent used for absorbance based measurement of protein. Also known as 4,4'-Dicarboxy-2,2'-Biquinoline; BCA; 2,2'-Biquinoline-4,4'-Dicarboxylate; 2,2'-Biquinoline-4,4'-Dicarboxylic acid Appearance: Colorless to pale yellow powder

  • BTEX Standard

    SPEX CertiPrep

    Matrix: Methanol-P&T

  • 1000 ppm Bromate for IC

    Inorganic Ventures

    Inorganic Ventures' 1000 ppm Bromate for IC is a certified reference material set in a water matrix for stability. This bromate standard is Traceable to NIST and manufactured in accordance with our stringent Quality Assurance guidelines. One year Expiration Date . Size: …

  • Benzoic Acid Primary Standard

    GFS Chemicals

    C6H5COOH CAS#: 65-85-0 F.W.: 122.12 Meets all ACS Specifications

  • 605 Benzidines Calibration Mix

    Restek

    Conc. in Solvent and Volume: 2,000 μg/mL each in methanol, 1 mL/ampul Max Shelf Life on Ship Date: 55 months Min Shelf Life on Ship Date: 6 months Certified Reference Material (CRM): Yes CAS #: 92-87-5; 91-94-1

  • B/N Surrogate Standard Mix (3/90 SOW)

    Restek

    Conc. In Solvent and Volume: 5,000 μg/mL each in methylene chloride, 5 mL/ampul Min Shelf Life on Ship Date: 6 months

  • D-Biotin, Vitamin H

    bioWORLD

    Used as a vitamin in culture media and biotenylation of proteins and nucleic acids. Reagent Grade Appearance: White Crystalline Needles Density: 1.267 g/cm3 HS Code: 29362930 IUPAC_Name: 5-[(3aS,4S,6aR)-2-Oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl]pentanoic acid …

  • Butyraldehyde 1000ppm 1mL

    SPEX CertiPrep

  • Benzidine

    SPEX CertiPrep

    Matrix: Methanol

  • BSA (Bovine Serum Albumin,RNase free

    bioWORLD

    Bovine serum albumin, BSA, is a single subunit protein with no enzymatic activity and does not interfere with any molecular biology reactions.A general purpose purified albumin, suitable for Westerns, enzyme systems and as a protein supplement. Supplied at 10 mg/mL in 0.85% sodium chloride …

  • 1000ppm Beryllium in Oil 50g

    SPEX CertiPrep

  • Beryllium/2%HN03 1000ppm 100mL

    SPEX CertiPrep

  • 1000µg/mL Bromide in H2O

    High Purity Standards

    Bromide at 1000 µg/mL in H2O This standard is traceable to NIST SRM 3184 and certified ISO Guide 34 and 17025 18 Month Expiry Date Can be used as stock solution for EPA Method 9056 Single component Ion Chromatography Standard

  • Barium ICP, 10K ppm in HNO3

    Ricca Chemical

  • Benzamidine hydrochloride

    bioWORLD

    Benzamidine hydrochloride is used as a ligand in protein crystallography to prevent proteases from degrading a protein of interest. Ultra Pure Grade (Also available in Proteomics Grade) Em (anhydrous, 230nm, methanol): >9,500 Appearance: White to Off-White Powder Boiling…

  • Boron ICP, 10K ppm in H2O

    Ricca Chemical

  • BES (2-(Bis(2-hydroxyethyl) amino)

    bioWORLD

    A zwitterionic buffer that is used in research.A protocol has been reported for the use of BES buffered saline in the calcium phosphate mediated transfection of eukaryotic cells with plasmid DNA. Also known as 2 - (Bis (2 - hydroxyethyl) amino) ethanesulfonic acid or N,N - bis (2 -…

  • Betaine, anhydrous

    bioWORLD

    Betaine can be used to treat high homocysteine levels. Its alkylated derivates are used as quaternary ammonium zwitterionic surfactants. Also known as Glycine Betaine or Oxyneurine. Appearance: white Crystalline Powder Boiling Point: 391.94°C (Predicted) Density: 1.00 g/mL at…

  • Boric acid (Molecular Biology Grade)

    bioWORLD

    A commonly used molecular biology reagent and also used in electrophoresis buffers. pKa (@ 20°C): 9.24 Molecular Biology Grade (also available in Proteomics Grade) Chloride: <.001% Phosphate: <0.001% Sulfate: <0.01% Calcium: <0.005% Heavy metals…

  • Buffer Lo Level Tisab II 500mL

    SPEX CertiPrep

  • 1000µg/mL Boron in H2O

    High Purity Standards

    1000 µg/mL Boron in H2O from Boric acid This standard is traceable to NIST SRM 3107 and certified ISO Guide 34 and 17025. 18 Month Expiry Date

  • Barium Sulfate

    MilliporeSigma

    Synonyms Blanc fixe Hill Formula BaO4S Chemical formula BaSO4 HS Code 2833 27 00 EC number 231-784-4 Molar mass 233.39 g/mol CAS number 7727-43-7

  • Bismuth Standard Solution Traceable To SRM From NIST Bi(NO3)3 In HNO3 0.5 Mol/L…

    MilliporeSigma

    UN No.: 3264 pH: 0.5 (H2O, 20°C) Solubility: (20°C) soluble Density: 1.013 g/cm3 (20°C) Ignition Point: 0.5 (H2O, 20°C)

  • Barium Standard Solution Traceable To SRM From NIST Ba(NO3)2 In HNO3 0.5 Mol/L…

    MilliporeSigma

    UN No.: 3264 pH: 0.5 (H2O, 20°C) Solubility: (20°C) soluble Density: 1.013 g/cm3 (20°C) Ignition Point: 0.5 (H2O, 20°C)

  • Boron Standard Solution Traceable To SRM From NIST H3Bo3 In H2O 1000 mg/L B…

    MilliporeSigma

    pH: 4 (H2O, 20°C) Density: 1.000 g/cm3 (20°C) Ignition Point: 4 (H2O, 20°C)

  • Biotin Hydrazide

    bioWORLD

    Biotin Hydrazide is a carbohydrate reactive biotinylation reagent. Biotin Hydrazide is used for labeling mouse monoclonal antibodies, unpaired cytosine residues in nucleic acids and it is also used fo coupling to glycoproteins through the carbohydrate by hydrazone formation. Carbohydrate…

  • Benzoic acid

    bioWORLD

    It is the simplest aromatic carboxylic acid and consists of a carboxyl group attached to a phenyl group.Salts of benzoic acid are used as a food preservative and benzoic acid is an important precursor for the synthesis of many other organic substances.It is primarily used in manufacturing of alkyd…

  • Bromide, 1,000 ppm, Ion Chromatography Standard Solution

    GFS Chemicals

    Concentration (as Br) 1,000 +/- 10 ug/ml Matrix: KBr, water

  • VeriSpec™ Benzoate - C6H5COO- Standard for Ion Chromatography, 1000 ppm in H2O

    Ricca Chemical

    Matrix: H2O Min: >= 995 Max: =< 1005 ppm Manufactured and Tested in an ISO 17025/Guide 34 Accredited Facility

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