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12804

Sigma-Aldrich

HBTU

≥98.0% (T), for peptide synthesis

Synonym(s):

N,N,N′,N′-Tetramethyl-O-(1H-benzotriazol-1-yl)uronium hexafluorophosphate, O-(Benzotriazol-1-yl)-N,N,N′,N′-tetramethyluronium hexafluorophosphate

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About This Item

Empirical Formula (Hill Notation):
C11H16F6N5OP
CAS Number:
94790-37-1
Molecular Weight:
379.24
Beilstein:
7328329
EC Number:
423-020-5
MDL number:
MFCD00075445
UNSPSC Code:
12352107
PubChem Substance ID:
57647025
NACRES:
NA.22

product name

HBTU, ≥98.0% (T)

Assay

≥98.0% (T)

form

solid

reaction suitability

reaction type: Coupling Reactions

mp

200 °C (dec.) (lit.)

solubility

acetonitrile: 0.1 g/mL, clear

application(s)

peptide synthesis

storage temp.

2-8°C

SMILES string

F[P-](F)(F)(F)(F)F.CN(C)C(\On1nnc2ccccc12)=[N+](/C)C

InChI

1S/C11H16N5O.F6P/c1-14(2)11(15(3)4)17-16-10-8-6-5-7-9(10)12-13-16;1-7(2,3,4,5)6/h5-8H,1-4H3;/q+1;-1

InChI key

UQYZFNUUOSSNKT-UHFFFAOYSA-N

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General description

HBTU is a peptide coupling agent used in Fmoc-based solid-phase peptide synthesis.

Application

HBTU is a peptide coupling agent for peptide synthesis. It has also been used in standard Fmoc-based solid-phase peptide synthesis (SPPS) protocol.
Recent studies show that crystal as well as solution structure of this coupling agent is a guanidinium N-oxide and not an uronium compound; Coupling reagent for peptide synthesis; advantages are: very low racemization, simple reaction conditions, very short reaction time, and high yields.

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H317

Hazard Classifications

Skin Sens. 1A

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Structural studies of reagents for peptide bond formation: Crystal and molecular structures of HBTU and HATU.
Abdelmoty I, et al.
Lett. Pept. Sci., 1(2), 57-67 (1994)
Hiroshi Wada et al.
PloS one, 13(7), e0199249-e0199249 (2018-07-04)
Recently, many autologous tumor antigens have been examined for their potential use in cancer immunotherapy. However, the success of cancer vaccines in clinical trials has been limited, partly because of the limitations of using single, short peptides in most attempts.
L P Miranda et al.
Proceedings of the National Academy of Sciences of the United States of America, 96(4), 1181-1186 (1999-02-17)
The chemical synthesis of peptides and small proteins is a powerful complementary strategy to recombinant protein overexpression and is widely used in structural biology, immunology, protein engineering, and biomedical research. Despite considerable improvements in the fidelity of peptide chain assembly
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