2,3-Diaminonaphthalene , >97%(HPLC) , 771-97-1

Synonym(s):
2,3-Naphthalenediamine;DAN;naphthalene-2,3-diamine

CAS NO.：771-97-1

Empirical Formula: C10H10N2

Molecular Weight: 158.2

MDL number: MFCD00004116

EINECS: 212-241-0

PRODUCT Properties

• Melting point: 197-203 °C
• Boiling point: 273.29°C (rough estimate)
• Density: 1.0968
• refractive index: 1.6392 (estimate)
• storage temp.: Keep in dark place,Inert atmosphere,2-8°C
• solubility: pyridine: soluble50mg/mL
• pka: 5.36±0.10(Predicted)
• form: Crystalline Powder
• color: Green-brown to brown
• Water Solubility: Slightly soluble in water. Soluble in pyridine, dimethylsulfoxide, dimethyformamide, dil.hydrochloric acid, ethanol, ether and hot methanol.
• BRN: 2206394
• Stability: Stable. Combustible. Incompatible with strong oxidizing agents.
• InChI: InChI=1S/C10H10N2/c11-9-5-7-3-1-2-4-8(7)6-10(9)12/h1-6H,11-12H2
• InChIKey: XTBLDMQMUSHDEN-UHFFFAOYSA-N
• SMILES: C1=C2C(C=CC=C2)=CC(N)=C1N
• CAS DataBase Reference: 771-97-1(CAS DataBase Reference)
• EPA Substance Registry System: 2,3-Naphthalenediamine (771-97-1)

Description and Uses

2,3-Diaminonaphthalene is a highly selective colorimetric and fluorometric reagent for selenium detection and also used for the fluorometric determination of nitrite. It is also useful for detection of ketones and alpha-keto acids.
2,3-Diaminonaphthalene reacts with nitrosonium, which is formed from nitrite at low pH, to form the fluorescent dye 1 H-naphthotriazole. This method can be used to detect 10 nM to 10 uM of nitrite (NO2-) and is compatible with 96-well format.
Fluorometric probe for nitrite
Quantify 10 nM to 10 uM of nitrite
Yellow orange solid soluble in DMSO

In a reaction similar to that of DAF-FM , 2,3- diaminonaphthalene (D-7918) reacts with the nitrosonium cation that forms spontaneously from NO to form the fluorescent product 1H-naphthotriazole.Using 2,3-diaminonaphthalene, researchers have developed a rapid, quantitative fluorometric assay that can detect from 10 nM to 10 μM nitrite and is compatible with a 96-well microplate format.

Safety

• Symbol(GHS): GHS07,GHS08
• Signal word: Danger
• Hazard statements: H302-H315-H319-H335-H350
• Precautionary statements: P201-P202-P301+P312-P302+P352-P305+P351+P338-P308+P313
• Hazard Codes: Xn,T
• Risk Statements: 22-36/37/38-45
• Safety Statements: 26-45-53
• RIDADR: 2811
• WGK Germany: 3
• F: 8-10-23
• TSCA: Yes
• HS Code: 29215900