Tetramethylammonium hydroxide pentahydrate

四甲基氢氧化铵五水合物

Also known as: TMAH Pentahydrate, N,N,N-trimethylmethanaminium hydroxide pentahydrate, Methanaminium, N,N,N-trimethyl-, hydroxide, pentahydrate, Tetramethylammonium hydroxide pentahydrate, 99%, Tetramethylammonium hydroxide pentahydrate, 97%, tetramethylazanium, hydroxide, pentahydrate

Tetramethylammonium hydroxide pentahydrate (CAS 10424-65-4) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C4H23NO6 and a molecular weight of 181.229 g/mol. It is also known as TMAH Pentahydrate, N,N,N-trimethylmethanaminium hydroxide pentahydrate and Methanaminium, N,N,N-trimethyl-, hydroxide, pentahydrate. Key property: a melting point of 67-70 °C(lit.). GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

10424-65-4

Jingsj CID

J-1133393-3

Molecular Formula

C₄H₂₃NO₆

Chinese Name

四甲基氢氧化铵五水合物

Molecular Weight

181.229 g/mol

Category

Organic Compounds

Last updated

8/21/2026