Product Name

  • Name

    2-DI-1-ASP

  • EINECS 218-460-8
  • CAS No. 2156-29-8
  • Article Data15
  • CAS DataBase
  • Density 1.091g/cm3
  • Solubility DMSO: soluble
  • Melting Point 280 °C
  • Formula C16H19N2.I
  • Boiling Point 397.8°C at 760 mmHg
  • Molecular Weight 366.245
  • Flash Point 179.3°C
  • Transport Information
  • Appearance
  • Safety 26-36
  • Risk Codes 36/37/38
  • Molecular Structure Molecular Structure of 2156-29-8 (2-DI-1-ASP)
  • Hazard Symbols IrritantXi
  • Synonyms 2-[p-(Dimethylamino)styryl]-1-methylpyridiniumiodide (7CI);Pyridinium, 2-[2-[4-(dimethylamino)phenyl]ethenyl]-1-methyl-,iodide (9CI);Pyridinium, 2-[p-(dimethylamino)styryl]-1-methyl-, iodide (8CI);2-[4-(Dimethylamino)styryl]-1-methylpyridinium iodide;2-[p-(Dimethylamino)styryl]pyridine methiodide;D 308;D 308 (dye);DASPI;w-(N'-Methylpyridyl-2')-4-dimethylaminostyreneiodide;
  • PSA 7.12000
  • LogP -0.24850

2-[4-(Dimethylamino)styryl]-1-methylpyridinium iodide Specification

The IUPAC name of 2-[4-(Dimethylamino)styryl]-1-methylpyridinium iodide is N,N-dimethyl-4-[(E)-2-(1-methylpyridin-1-ium-2-yl)ethenyl]aniline iodide. With the CAS registry number 2156-29-8, it is also named as Pyridinium, 2-(p-(dimethylamino)styryl)-1-methyl-. iodide. The product's classification codes are Calcium Channel Blockers; Cardiovascular Agents; Coloring Agents; Fluorescent Dyes; Indicators and Reagents; Luminescent Agents; Membrane Transport Modulators. Besides, it is soluble in DMSO, which should be stored in cool and ventilated place at room temperature. In addition, its molecular formula is C16H19N2.I and its molecular weight is 366.24.

The other characteristics of 2-[4-(Dimethylamino)styryl]-1-methylpyridinium iodide can be summarized as: (1)H-Bond Donor: 0; (2)H-Bond Acceptor: 2; (3)Rotatable Bond Count: 3; (4)Exact Mass: 366.059292; (5)MonoIsotopic Mass: 366.059292; (6)Topological Polar Surface Area: 7.1; (7)Heavy Atom Count: 19; (8)Complexity: 264; (9)EINECS: 218-460-8; (10)Melting point: 280 °C.

Preparation of : this chemical can be prepared by 3-(4-Dimethylamino-phenyl)-propenal and 1,2-Dimethyl-pyridinium; iodide.



This reaction needs πperidine and Methanol by heating. The yield is 57 %.

When you are using this chemical, please be cautious about it as the following: it is irritating to eyes, respiratory system and skin. In case of contact with eyes, please rinse immediately with plenty of water and seek medical advice. And you should wear suitable protective clothing.

People can use the following data to convert to the molecule structure.
(1)SMILES: [I-].c2(\C=C\c1[n+](cccc1)C)ccc(N(C)C)cc2
(2)InChI: InChI=1/C16H19N2.HI/c1-17(2)15-10-7-14(8-11-15)9-12-16-6-4-5-13-18(16)3;/h4-13H,1-3H3;1H/q+1;/p-1
(3)InChIKey: XPOIQAIBZGSIDD-REWHXWOFAV
(4)Std. InChI: InChI=1S/C16H19N2.HI/c1-17(2)15-10-7-14(8-11-15)9-12-16-6-4-5-13-18(16)3;/h4-13H,1-3H3;1H/q+1;/p-1
(5)Std. InChIKey: XPOIQAIBZGSIDD-UHFFFAOYSA-M

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