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  • Product Name:   HBTU
  • Synonyms:   O-(1H-BENZOTRIAZOL-1-YL)-N,N,N',N'-TETRAMETHYLURONIUM HEXAFLUOROPHOSPHATE;O-(BENZOTRIAZOL-1-YL)-N,N,N',N'-TETRAMETHYLURONIUM HEXAFLUOROPHOSPHATE;O-(BENZOTRIAZOL-1-YL)-N-N-N ,N -TETRAMETHYLURONIUM HEXAFLUOROPHOSPHATE;O-BENZOTRIAZOL-1-YL-N,N,N',N'-TETRAMETHYLURONIUM HEXAFLUOROPHOSPHATE POLYMER BOUND;O-BENZOTRIAZOL-1-YL-TETRAMETHYLURONIUM HEXAFLUOROPHOSPHATE
  • CAS No.:   94790-37-1
  • Molecular Formula:   C11H16N5O.F6P
  • Molecular Weight :   379.24
  • Specification :   98%
  • Place of Origin:   China
  • Appearance :   
  • Document :   Download

Description of HBTU
HBTU Chemical Properties
Melting point  200 °C (dec.)(lit.)
Fp  200°C
storage temp.  2-8°C
solubility  acetonitrile: 0.1 g/mL, clear
form  Powder
PH 4.1 (1.6g/l, H2O)
Decomposition  200 ºC
BRN  7328329
Stability: Stable. Incompatible with oxidizing agents.
InChIKey UQYZFNUUOSSNKT-UHFFFAOYSA-N
CAS DataBase Reference 94790-37-1(CAS DataBase Reference)
Safety Information
Hazard Codes  Xi,Xn
Risk Statements  36/37/38-20/21/22-42/43
Safety Statements  26-36/37/39-36-22
WGK Germany  3
F  8-10-21
Hazard Note  Irritant
HS Code  29339980
HBTU Usage And Synthesis
Chemical Properties white to light yellow powder
Uses HBTU is a coupling reagent used in peptide synthesis. HBTU has been shown to effectively suppress racemization.
Uses peptide coupling reagent that reduces racemization
Uses Peptide coupling reagent which suppresses racemization.
Purification Methods Wash the salt with H2O (3x), CH2Cl2 (3x), dry and recrystallise it from MeCN. Dry it in a vacuum and store it cold in the dark [Dourtoglou et al. Tetrahedron Lett 1269 1978, NMR: Dourtoglou and Gross Synthesis 572 1984]. Benzoxazolinone (2 -hydroxybenzoxazole) [59 -49 -4] M 135.1, m 137 -139o, 142 -143o(corrected), b 121-213o/17mm, 335-337o/760mm. Benzoxazolinone is purified by recrystallisation from aqueous Me2CO followed by distillation at atmospheric pressure, then in a vacuum. The methyl mercury salt recrystallises from aqueous EtOH and has m 156-158o. [Bywater et al. J Am Chem Soc 67 905 1945, Beilstein 27 III/IV 2677.]
HBTU Preparation Products And Raw materials

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