2,8,9-trimethyl-2,5,8,9-tetraaza-1-phosphabicyclo[3.3.3]undecane

2,8,9-三甲基-2,5,8,9-四氮杂-1-磷杂双环[3.3.3]十一烷

Also known as: Verkade base, Verkade superbase, Verkade's SuperBase, Proazaphosphatrane, 4,6,11-trimethyl-1,4,6,11-tetraza-5-phosphabicyclo[3.3.3]undecane, 2,8,9-Trimethyl-1-phospha-2,5,8,9-tetraazabicyclo[3.3.3]undecane, MFCD00269837

2,8,9-trimethyl-2,5,8,9-tetraaza-1-phosphabicyclo[3.3.3]undecane (CAS 120666-13-9) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C9H21N4P and a molecular weight of 216.26400 g/mol. It is also known as Verkade base, Verkade superbase and Verkade's SuperBase. Key properties include a melting point of 110-115ºC(lit.), a boiling point of 263.9ºC at 760mmHg and a flash point of 113.4ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

120666-13-9

Jingsj CID

J-43116-5

Molecular Formula

C₉H₂₁N₄P

Chinese Name

2,8,9-三甲基-2,5,8,9-四氮杂-1-磷杂双环[3.3.3]十一烷

Molecular Weight

216.26400 g/mol

Category

Aliphatic Hydrocarbons

Last updated

8/21/2026