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Glycine-tert-butyl ester hydrochloride(H-Gly-OtBu.HCl) ≥99%

Supplier: CHEM-IMPEX INTERNATIONAL, INC
Description: Glycine-tert-butyl ester hydrochloride(H-Gly-OtBu.HCl) ≥99%

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Adenosine-5'-diphosphate monopotassium salt ≥98% (by HPLC), powder

Supplier: CHEM-IMPEX INTERNATIONAL, INC
Description: Adenosine-5'-diphosphate monopotassium salt ≥98% (by HPLC), powder

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Phenylboronic acid ≥99% (by HPLC), crystalline powder

Supplier: CHEM-IMPEX INTERNATIONAL, INC
Description: Used in numerous cross coupling reactions to make carbon-carbon bond formation (Suzuki reaction). It is also used in biology schemes as receptors and sensors.

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1,1,1,3,3,3-Hexafluoro-2-propanol ≥99% (by GC)

Supplier: CHEM-IMPEX INTERNATIONAL, INC
Description: It is used as a polar solvent and exhibits strong hydrogen bonding properties. It dissolves substances that are hydrogen-bond acceptors.

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Fmoc-Osu (N-(9-fluorenylmethoxycarbonyloxy)succinimide) ≥99% (by HPLC)

Supplier: CHEM-IMPEX INTERNATIONAL, INC
Description: Reagent for the preparation of pure Fmoc amino acids free from contamination by Fmoc-dipeptides.

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Di-tert-butyl pyrocarbonate ≥99%, crystals

Supplier: CHEM-IMPEX INTERNATIONAL, INC
Description: Reagent for the preparation of Boc-amino acids and peptides in high yields.

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TBTU (O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate) ≥99% (by HPLC), Powder

Supplier: CHEM-IMPEX INTERNATIONAL, INC
Description: Coupling reagent for peptide synthesis causing low racemization. R. Knorr, A. Trzeciak, W. Bannwarth and D. Gillessen, THL 30, 1927 (1989)

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L(-)-Tryptophan ≥99%, crystalline powder

Supplier: CHEM-IMPEX INTERNATIONAL, INC
Description: L(-)-Tryptophan ≥99%, crystalline powder

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3-Methyl-2-benzothiazolinone hydrazone hydrochloride monohydrate ≥99% (by HPLC)

Supplier: CHEM-IMPEX INTERNATIONAL, INC
Description: Used in the spectrophotometric determination of aliphatic aldehydes, hexosamines in glycosaminoglycans, traces of selenium (IV) in environmental samples.

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HBTU(O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate) ≥99% (by HPLC), Powder

Supplier: CHEM-IMPEX INTERNATIONAL, INC
Description: Peptide coupling reagent which suppresses racemization.

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Hydroxy naphthol blue disodium salt ACS for calcium determination

Supplier: CHEM-IMPEX INTERNATIONAL, INC
Description: Used in the determination of calcium.

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Chloroquine diphosphate salt ≥99% (by titrimetric analysis), crystalline powder BP

Supplier: CHEM-IMPEX INTERNATIONAL, INC
Description: Chloroquine diphosphate salt ≥99% (by titrimetric analysis), crystalline powder BP

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Fusidic acid 97.5-101.0% (by anhydrous basis), Powder

Supplier: CHEM-IMPEX INTERNATIONAL, INC
Description: Fusidic acid 97.5-101.0% (by anhydrous basis), powder

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Cytidine-5'-triphosphoric acid disodium salt (CTP-Na2) ≥98% (by HPLC)

Supplier: CHEM-IMPEX INTERNATIONAL, INC
Description: Cytidine-5'-triphosphoric acid disodium salt (CTP-Na2) ≥98% (by HPLC)

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Dess-Martin periodinane ≥95%, Powder

Supplier: CHEM-IMPEX INTERNATIONAL, INC
Description: Dess-Martin periodinane ≥95%, Powder

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HATU (O-(7-Aza-1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate) ≥99% (by HPLC), Powder

Supplier: CHEM-IMPEX INTERNATIONAL, INC
Description: Recent studies show that crystal as well as solution structure of this coupling agent is a guanidinium N-oxide and not an uronium compound.

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Stock for this item is limited, but may be available in a warehouse close to you. Please make sure that you are logged in to the site so that available stock can be displayed. If the call is still displayed and you need assistance, please call us at 1-800-932-5000.
This product is marked as restricted and can only be purchased by approved Shipping Accounts. If you need further assistance, email VWR Regulatory Department at Regulatory_Affairs@vwr.com
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