2-(3,4-Dihydro-4-oxo-1,2,3-benzotriazin-3-yl)-1,1,3,3-tetramethyluronium hexafluorophosphate

O-(3,4-二氢-4-氧-1,2,3-苯并三氮唑-3-基)-N,N,N',N'-四甲基脲六氟磷酸酯

Also known as: HDBTU, O-(3,4-Dihydro-4-oxo-1,2,3-benzotriazol-3-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate, 2-(3,4-Dihydro-4-oxy-1,2,3-benzotriazin-3-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate, N,N,N′,N′-Tetramethyl-O-(4-oxo-3,4-dihydro-1,2,3-benzotriazin-3-yl)uronium hexafluorophosphate, (Dimethylamino)-N,N-dimethyl[(4-oxo-1,2,3-benzotriazin-3(4H)-yl)oxy]methaniminium hexafluorophosphate

2-(3,4-Dihydro-4-oxo-1,2,3-benzotriazin-3-yl)-1,1,3,3-tetramethyluronium hexafluorophosphate (CAS 164861-52-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C12H16F6N5O2P and a molecular weight of 407.25200 g/mol. It is also known as HDBTU, O-(3,4-Dihydro-4-oxo-1,2,3-benzotriazol-3-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate and 2-(3,4-Dihydro-4-oxy-1,2,3-benzotriazin-3-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate. Key property: a melting point of 140ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
164861-52-3
Jingsj CID
J-1967333-2
Molecular Formula
C12H16F6N5O2P
Chinese Name
O-(3,4-二氢-4-氧-1,2,3-苯并三氮唑-3-基)-N,N,N',N'-四甲基脲六氟磷酸酯
Molecular Weight
407.25200 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point140ºC

Frequently Asked Questions

What is the CAS number of 2-(3,4-Dihydro-4-oxo-1,2,3-benzotriazin-3-yl)-1,1,3,3-tetramethyluronium hexafluorophosphate?

The CAS number of 2-(3,4-Dihydro-4-oxo-1,2,3-benzotriazin-3-yl)-1,1,3,3-tetramethyluronium hexafluorophosphate is 164861-52-3.

What are the molecular formula and molecular weight of 2-(3,4-Dihydro-4-oxo-1,2,3-benzotriazin-3-yl)-1,1,3,3-tetramethyluronium hexafluorophosphate?

2-(3,4-Dihydro-4-oxo-1,2,3-benzotriazin-3-yl)-1,1,3,3-tetramethyluronium hexafluorophosphate has molecular formula C12H16F6N5O2P and molecular weight 407.25200 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "2-(3,4-Dihydro-4-oxo-1,2,3-benzotriazin-3-yl)-1,1,3,3-tetramethyluronium hexafluorophosphate (CAS 164861-52-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1967333-2 (accessed 2026-10-24).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.