N-1 Naphthyl Ethylene Diamine is an organic compound with a conjugated naphthyl ring structure and the chemical formula C₁₂H₁₄N₂·2HCl. It acts as a strong electron donor and can form charge-transfer complexes with different electron acceptors. The compound generally occurs as a white to light tan or gray crystalline solid or off-white powder. Its structure enables characteristic interactions with various chemical species and the formation of strongly colored products. The free base is also known as the Bratton-Marshall reagent. These chemical and chromogenic properties make the compound particularly important in analytical and research chemistry.
CAS No.: 1945-77-3
Synonyms: Bratton-Marshall Reagent, N-(1-Naphthyl)ethylenediamine dihydrochloride.
| Physical Properties | |
| Chemical formula | C12H16Cl2N2 |
| IUPAC Name | N1-(Naphthalen-1-yl)ethane-1,2-diamine |
| Molecular weight | 259.18 g/mol |
| Solubility | Soluble in water |
| Density | 380 kg/m3 |
| Appearance | White to Light yellow to Light orange powder to crystal |
| Storage | Store at room temperature |
| Chemical Properties | |
| Color | White to off-white to pale brown |
| Physical State | Solid |
| Melting Point | 194-198 °C |
| Odor | Odorless |
| Pictograms : |  |
| Hazard Statements : | H315: Causes skin irritation. H319: Causes serious eye irritation. H335: May cause respiratory irritation. |
| Precautionary Statements: | P261: Avoid breathing dust/fume/gas/mist/vapours/spray. P302+P352: IF ON SKIN: Wash with plenty of water. P305+P351+P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. |
N-1 Naphthyl Ethylene Diamine is an organic compound with a conjugated naphthyl ring structure and the chemical formula C₁₂H₁₄N₂·2HCl. It acts as a strong electron donor and can form charge-transfer complexes with different electron acceptors. The compound generally occurs as a white to light tan or gray crystalline solid or off-white powder. Its structure enables characteristic interactions with various chemical species and the formation of strongly colored products. The free base is also known as the Bratton-Marshall reagent. These chemical and chromogenic properties make the compound particularly important in analytical and research chemistry.
CAS No.: 1945-77-3
Synonyms: Bratton-Marshall Reagent, N-(1-Naphthyl)ethylenediamine dihydrochloride.
| Physical Properties | |
| Chemical formula | C12H16Cl2N2 |
| IUPAC Name | N1-(Naphthalen-1-yl)ethane-1,2-diamine |
| Molecular weight | 259.18 g/mol |
| Solubility | Soluble in water |
| Density | 380 kg/m3 |
| Appearance | White to Light yellow to Light orange powder to crystal |
| Storage | Store at room temperature |
| Chemical Properties | |
| Color | White to off-white to pale brown |
| Physical State | Solid |
| Melting Point | 194-198 °C |
| Odor | Odorless |
| Pictograms : | |
| Hazard Statements : | H315: Causes skin irritation. H319: Causes serious eye irritation. H335: May cause respiratory irritation. |
| Precautionary Statements: | P261: Avoid breathing dust/fume/gas/mist/vapours/spray. P302+P352: IF ON SKIN: Wash with plenty of water. P305+P351+P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. |
N-1 Naphthyl Ethylene Diamine is mainly used as an analytical reagent for the colorimetric and spectrophotometric determination of nitrite, nitrate and sulfonamides. It is also used in coupling reactions, chemical synthesis, and charge-transfer studies.
The chemical formula of N-1 Naphthyl Ethylene Diamine is C₁₂H₁₄N₂·2HCl. It is commonly known as the Bratton–Marshall reagent and is also referred to as NEDA dihydrochloride or NEDA·2HCl.
N-1 Naphthyl Ethylene Diamine provides a sensitive colorimetric response for nitrite determination and can also be included in analytical methods for nitrate after nitrate is converted to nitrite. This makes it useful in water quality and environmental analysis.
N-(1-Naphthyl)ethylenediamine participates in a diazotization-coupling reaction to give a colored azo compound in the Griess reaction. The resulting color can be measured to determine the concentration of nitrites.
