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H26082 O-(7-Aza-1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate, 99%

CAS Number
1-[Bis(dimethylamino)methylene]-1H-1,2,3-triazolo[4,5-b]pyridinium 1-oxide hexafluorophosphate

Stock No. Size Price ($) Quantity Availability
H26082-03 1g 31.80
H26082-06 5g 57.60
H26082-14 25g 151.00
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O-(7-Aza-1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate, 99%


Chemical Properties

Formula Weight
Melting point
ca 185° dec.
Storage & Sensitivity
Moisture Sensitive. Store under Nitrogen. Ambient temperatures.
Soluble in acetonitrile. Insoluble in water.


O-(7-Aza-1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate is a coupling reagent and used as an additive in peptide synthesis., It is also involved efficiently to speed up the coupling process and reduces the loss of chiral integrity.


Moisture sensitive. Incompatible with oxidizing agents and highly acidic or alkaline materials.

Literature References

Yoshida, M.; Sasahara, K. I.; Doi, T. Total synthesis of cyclodepsipeptide spiruchostatin A on silyl-linked polymer-support. Tetrahedron 2015, 71 (40), 7647-7653.

Xie, Y.; Yu, C.; Li, T.; Tu, S.; Yao, C. An NHC-Catalyzed In Situ Activation Strategy to β-Functionalize Saturated Carboxylic Acid: An Enantioselective Formal [3+ 2] Annulation for Spirocyclic Oxindolo-γ-butyrolactones. Chem. Eur. J. 2015, 21 (14), 5355-5359.

GHS Hazard and Precautionary Statements

Hazard Statements: H228-H315-H319-H335

Flammable solid. Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.

Precautionary Statements: P210-P240-P241-P261-P264b-P271-P280-P302+P352-P304+P340-P305+P351+P338-P312-P332+P313-P337+P313-P362-P370+P378q-P501c

Keep away from heat/sparks/open flames/hot surfaces. - No smoking. Ground/bond container and receiving equipment. Use explosion-proof electrical/ventilating/lighting/ equipment. Avoid breathing dust/fume/gas/mist/vapours/spray. Wash face, hands and any exposed skin thoroughly after handling Use only outdoors or in a well-ventilated area. Wear protective gloves/protective clothing/eye protection/face protection. IF ON SKIN: Wash with plenty of soap and water. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Call a POISON CENTER or doctor/physician if you feel unwell. If skin irritation occurs: Get medical advice/attention. If eye irritation persists: Take off contaminated clothing and wash before reuse. In case of fire: Use CO2, dry chemical, or foam Dispose of contents/ container to an approved waste disposal plant

Other References

Hazard Class
Packing Group
Harmonized Tariff Code


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