Toggle Nav


In stock
Catalog No.
used in peptide coupling chemistry
Grouped product items
SizePriceStock Qty
10mM (in 1mL DMSO)
In stock
In stock
In stock
In stock
In stock

Tel: +1-832-696-8203

Email: [email protected]

Worldwide Distributors

HATU(1-[Bis(dimethylamino)methylene]-1H-1,2,3-triazolo[4,5-b]pyridinium 3-oxid hexafluorophosphate) is a reagent used inpeptide couplingchemistry to generate an active ester from a carboxylic acid. HATU can be used along with Hünig's base(N,N-diisopropylethylamine, DIPEA) to form amide bonds. The general solvent is DMF [1].

HATU has been commonly used in alcohol and amine acylation reactions such as amide and ester formation. Such reactions are commonly performed in two distinct reaction steps: (1) reaction of a carboxylic acid with HATU to form the OAt-active ester; then (2) addition of the nucleophile to the active ester solution to form the acylated product such as alcohol or amine [2, 3].

[1].  Carpino L A. 1-Hydroxy-7-azabenzotriazole. An efficient peptide coupling additive[J]. Journal of the American Chemical Society, 1993, 115(10): 4397-4398.
[2].  Carpino L A, Imazumi H, El‐Faham A, et al. The uronium/guanidinium peptide coupling reagents: Finally the true uroniumsalts[J]. AngewandteChemie International Edition, 2002, 41(3): 441-445.
[3].  Carpino L A, Imazumi H, Foxman B M, et al. Comparison of the Effects of 5-and 6-HOAt on Model Peptide Coupling Reactions Relative to the Cases for the 4-and 7-Isomers[J]. Organic letters, 2000, 2(15): 2253-2256.

Chemical Properties

StorageDesiccate at -20°C
Cas No.148893-10-1
Solubility≥16mg/mL in DMSO
Chemical Name[dimethylamino(triazolo[4,5-b]pyridin-3-yloxy)methylidene]-dimethylazanium;hexafluorophosphate
SDFDownload SDF
Canonical SMILESCN(C)C(=[N+](C)C)ON1C2=C(C=CC=N2)N=N1.F[P-](F)(F)(F)(F)F
Shipping ConditionEvaluation sample solution : ship with blue ice.All other available size: ship with RT , or blue ice upon request
General tipsFor obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.Stock solution can be stored below -20℃ for several months.

Quality Control

Quality Control & MSDS

View current batch:

Chemical structure