8.51012

HCTU

O-(1H-6-Chlorobenzotriazole-1-yl)-1,1,3,3-tetramethyluronium hexafluorophosphate Novabiochem^®

• Synonym(s): 2-(6-Chloro-1-H-benzotriazole-1-yl)-1,1,3,3-tetramethylaminium hexafluorophosphate, HCTU
• Empirical Formula (Hill Notation): C₁₁H₁₅ClF₆N₅OP
• CAS Number: 330645-87-9
• Molecular Weight: 413.69
• MDL number: MFCD04973268
• UNSPSC Code: 12352107
• NACRES: NA.22

Properties

• Quality Level: 300
• product line: Novabiochem^®
• Assay: ≥98% (HPLC)
• form: powder
• reaction suitability: reaction type: Coupling Reactions
• manufacturer/tradename: Novabiochem^®
• mp: >185 °C
• application(s): peptide synthesis
• storage temp.: 2-8°C
• InChI: 1S/C11H15ClN5O.F6P/c1-15(2)11(16(3)4)18-17-10-7-8(12)5-6-9(10)13-14-17;1-7(2,3,4,5)6/h5-7H,1-4H3;/q+1;-1
• InChI key: ZHHGTMQHUWDEJF-UHFFFAOYSA-N

Description

General description

HCTU ^[1] is a novel aminium-based coupling reagent, analogous to HBTU, which in comparative studies was found to give superiort results to TBTU in the synthesis of difficult peptides ^[2], in hindered couplings ^[3], and cyclizations ^[4].

Associated Protocols and Technical Articles
Guide to Selection of Coupling Reagents

Literature references

^[1] O. Marder, et al. (2002) Chimica Oggi, 37.
^[2] G. Sabatino, et al. in ′Peptides 2002, Proceedings of the 27th European Peptide Symposium′, E. Benedetti & C. Pedone (Eds), Naples, Edizioni Ziino, 2002, pp. 272.
^[3] M. Gude & S. Barthélémy in ′Peptides 2002, Proceedings of the 27th European Peptide Symposium′, E. Benedetti & C. Pedone (Eds), Naples, Edizioni Ziino, 2002, pp. 122.
^[4] G. Sabatino, et al. in ′Peptide Revolution: Genomics, Proteomics & Therapeutics, , Proc. 18th American Peptide Symposium′, M. Chrev & T. K. Sawyer (Eds), Cardiff, American Peptide Society, 2003, pp. 49.

Application

• High-throughput parallel synthesis optimization of Glucagon-like Peptide 1 receptor agonists: Describes the use of HCTU as a reactive coupling reagent in peptide synthesis, highlighting its effectiveness in the production of GLP-1 agonists. (Ramos-Colón et al., 2018).
• An efficient synthesis of quinoxaline derivatives using HCTU as catalyst in DMF: Outlines a novel method for synthesizing quinoxaline and its derivatives using HCTU, highlighting its catalytic properties in facilitating efficient chemical reactions. (Sasane et al., 2023).
• An efficient one-pot conversion of carboxylic acids into benzimidazoles via an HBTU-promoted methodology: Describes the use of HCTU in a methodology to convert carboxylic acids into benzimidazoles, noting its role alongside other carbodiimide agents. (Barasa and Yoganathan, 2018).

Linkage

Replaces: 01-62-0038

Analysis Note

Colour (visual): white to off white
Appearance of substance (visual): powder
Identity (IR): passes test
Assay (HPLC, area%): ≥ 98.0 % (a/a)
Solubility (1 mmole in 2 ml DMF): clearly soluble
Water (K. F.): ≤ 0.50 %

To see the solvent systems used for TLC of Novabiochem^® products please click here.

Legal Information

Novabiochem is a registered trademark of Merck KGaA, Darmstadt, Germany

Safety Information

• Pictograms: GHS07
• Signal Word: Warning
• Hazard Statements: H317
• Precautionary Statements: P261 - P272 - P280 - P302 + P352 - P333 + P313 - P362 + P364
• Hazard Classifications: Skin Sens. 1A
• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 3
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable