1-Methyl-4-(4-diethylaminophenylazo)pyridinium iodide

1-甲基-4-(4-二乙氨基苯基偶氮)吡啶鎓碘化物

Also known as: MDEPAP, 1-Methyl-4-(4-diethylaminophenylazo)pyridinium iodide, MDEPAP (=1-Methyl-4-(4-diethylaminophenylazo)pyridinium iodide), MDEPAP [=1-Methyl-4-(4-diethylaminophenylazo)pyridinium Iodide][Extraction-spectrophotometric reagent for anionic surfactants], 4-{(E)-[4-(Diethylamino)phenyl]diazenyl}-1-methylpyridinium iodide, Pyridinium, 4-[(E)-2-[4-(diethylamino)phenyl]diazenyl]-1-methyl-, iodide (1:1), N,N-diethyl-4-[(1-methylpyridin-1-ium-4-yl)diazenyl]aniline iodide, m0762

1-Methyl-4-(4-diethylaminophenylazo)pyridinium iodide (CAS 74920-80-2) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C16H21IN4 and a molecular weight of 396.269 g/mol. It is also known as MDEPAP, MDEPAP (=1-Methyl-4-(4-diethylaminophenylazo)pyridinium iodide) and MDEPAP [=1-Methyl-4-(4-diethylaminophenylazo)pyridinium Iodide][Extraction-spectrophotometric reagent for anionic surfactants]. Key property: a melting point of 190ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

74920-80-2

Jingsj CID

J-31524-5

Molecular Formula

C₁₆H₂₁IN₄

Chinese Name

1-甲基-4-(4-二乙氨基苯基偶氮)吡啶鎓碘化物

Molecular Weight

396.269 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026