Home/Compounds/Pharmaceutical Intermediate/2-(1H-Benzotriazole-1-yl)-1,1,3,3-tetramethyluronium tetrafluoroborate
C11H16BF4N5O
321.08 g/mol
Pharmaceutical IntermediateDanger
O-(Benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate
CAS125700-67-6EC603-087-9
Category
Pharmaceutical Intermediate
Compound Class
Other
Primary Use
Pharmaceutical Intermediate
This compound is a benzotriazole-based quaternary ammonium salt used as an activator in peptide synthesis. It functions as a coupling reagent that facilitates the formation of amide bonds during peptide chain assembly.
Peptide synthesis activatorCoupling reagent for amide bond formation
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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Related Compounds
ReferenceSame Category
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Safety Reference
Danger
H228Flammable solid
H315Causes skin irritation
H317May cause an allergic skin reaction
H319Causes serious eye irritation
H335May cause respiratory irritation
H302Harmful if swallowed
Customs Tariff Classification
The international HS code for O-(Benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate (CAS 125700-67-6) is 2933.99.
HS code (international, 6-digit)
2933.99
EU CN code (8-digit)
2933 99 80
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
[benzotriazol-1-yloxy(dimethylamino)methylidene]-dimethylazanium tetrafluoroborate
InChIKey
JKEKMBGUVUKMQB-UHFFFAOYSA-N
SMILES
[B-](F)(F)(F)F.CN(C)C(=[N+](C)C)ON1C2=CC=CC=C2N=N1
Synonyms (33)
- TBTU
- 2-(1H-benzotriazol-1-yl)-1
- TBTU Reagent
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