2,3-diaminonaphthalene
- CAS No.
- 771-97-1
- Chemical Name:
- 2,3-diaminonaphthalene
- Synonyms
- DAN;Naphthalene-2,3-diamine;2,3-DIAMINONAPHTHALENE;2,3-NAPHTHALENEDIAMINE;DAND1;JACS-771-97-1;NAPHTHALENEDIAMINE;TIMTEC-BB SBB000127;2,3-DiaminonaphthaL;2,3-Diaminonapthalene
- CBNumber:
- CB8101895
- Molecular Formula:
- C10H10N2
- Molecular Weight:
- 158.2
- MDL Number:
- MFCD00004116
- MOL File:
- 771-97-1.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| 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) |
| FDA UNII | 2BNZ6BRS87 |
| EPA Substance Registry System | 2,3-Naphthalenediamine (771-97-1) |
| UNSPSC Code | 12171500 |
| NACRES | NA.47 |
SAFETY
Risk and Safety Statements
| 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 | |||||||||
| target organs | Respiratory system | |||||||||
| PPE | dust mask type N95 (US), Eyeshields, Gloves | |||||||||
| 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 | TSCA listed | |||||||||
| HS Code | 29215900 | |||||||||
| Storage Class | 11 - Combustible Solids | |||||||||
| Hazard Classifications | Acute Tox. 4 Oral Eye Irrit. 2 Skin Irrit. 2 STOT SE 3 |
|||||||||
| NFPA 704 |
|
2,3-diaminonaphthalene price More Price(61)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 88461 | 2,3-Diaminonaphthalene BioReagent, suitable for fluorescence, ≥98.0% (HPLC) | 771-97-1 | 25mg | $58.2 | 2026-04-30 | Buy |
| Sigma-Aldrich | 88461 | 2,3-Diaminonaphthalene BioReagent, suitable for fluorescence, ≥98.0% (HPLC) | 771-97-1 | 100mg | $93.9 | 2026-04-30 | Buy |
| TCI Chemical | D1045 | 2,3-Diaminonaphthalene >98.0%(T) | 771-97-1 | 1g | $133 | 2026-04-30 | Buy |
| TCI Chemical | D1045 | 2,3-Diaminonaphthalene >98.0%(T) | 771-97-1 | 5g | $298 | 2026-04-30 | Buy |
| Cayman Chemical | 36265 | 2,3-Diaminonaphthalene ≥98% | 771-97-1 | 100mg | $30 | 2026-04-30 | Buy |
2,3-diaminonaphthalene Chemical Properties, Uses, Production
Description
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
Chemical Properties
colourless to white crystalline powder
Uses
2,3-Diaminonaphtaline (DAN) is used as a derivatisation-reagent for the determination of selenium at low detection limits.
Uses
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.
Uses
2,3-Diaminonaphthalene is used in preparation of precursors for multi-layer 3D material comprising chiral organic sandwich compounds.
Reactions
2,3-diaminonaphthalene (DAN) is a fluorometric probe for nitrite. It 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.
Reaction of 2,3-Diaminonaphthalene with NO2.
Synthesis
2050-75-1
771-97-1
General procedure for the synthesis of 2,3-diaminonaphthalene from 2,3-dichloronaphthalene: Dissolve 2,3-dichloronaphthalene (2 g) in anhydrous ethanol. Ammonium chloride (1.5 g) was added and diluted. Subsequently, a catalytic amount of hydrochloric acid and an excess of concentrated aqueous ammonia solution were added to the reaction system and the reaction was refluxed on a water bath for 6 hours until the reaction solution showed a persistent dark green color. After completion of the reaction, the reaction solution was cooled and placed in a deep freezer overnight. Green crystals were obtained by filtration, dried and recrystallized with methanol. Dark green crystals were obtained; 75% yield; thin layer chromatography Rf values of 0.89 and 0.82; melting point 150 °C; IR spectra (νmax, KBr, cm-1): 758, 854, 1473 (aromatic C-N stretching vibration), 1500 (aromatic C=C stretching vibration), 1681 (N-H bending vibration), 3049 (N-H stretching vibration); 1H NMR (CDCl3, 500 MHz): δ 7.45-7.46 (dd, J=3.5-4 Hz, 2H, Ar-H), 7.12-7.14 (dd, J=3-3.5 Hz, 2H, Ar-H), 7.09 (s, 2H, Ar-H), 7.05 (s, 4H, Ar-NH2).
Purification Methods
Crystallise the diamine from water, or dissolve it in 0.1M HCl, by heating to 50o. After cooling, the solution is extracted with decalin to remove fluorescent impurities and centrifuged. [Beilstein 13 IV 346.]
References
[1] Oriental Journal of Chemistry, 2017, vol. 33, # 2, p. 821 - 828
2,3-diaminonaphthalene Preparation Products And Raw materials
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Shanghai QiQiao Biological Technology Co., Ltd. | 021-37653318 15221675714 | 515366396@qq.com | China | 2087 | 58 |
| Tianjin Ruichi Pharmaceutical Technology Co., Ltd | 13752243191 | 3878686550@qq.com | China | 429 | 58 |
| Shandong Fengyang Technology Co., Ltd. | 19285468033 19255465625 | 19255465625@163.com | China | 40 | 58 |
| J & K SCIENTIFIC LTD. | 18210857532 18210857532 | jkinfo@jkchemical.com | China | 96815 | 76 |
| Meryer (Shanghai) Chemical Technology Co., Ltd. | 4006356688 18621169109 | market03@meryer.com | China | 40202 | 62 |
| Alfa Aesar | 400-6106006 | saleschina@alfa-asia.com | China | 30103 | 84 |
| TCI (Shanghai) Development Co., Ltd. | 021-67121386 | Sales-CN@TCIchemicals.com | China | 24512 | 81 |
| Ark Pharm, Inc. | 847-367-3680 | sales@arkpharminc.com | United States | 1669 | 56 |
| Beijing HwrkChemical Technology Co., Ltd | 89508211 18501085097 | sales.bj@hwrkchemical.com | China | 9407 | 55 |
| Energy Chemical | 400-0056266 | sales8178@energy-chemical.com | China | 44850 | 61 |
View Latest Price from 2,3-diaminonaphthalene manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-09-02 | 2,3-diaminonaphthalene
771-97-1
|
$2.00-8.00 | 1kg | 99% | Henan Fengda Chemical Co., Ltd | ||
 |
2026-06-30 | 2,3-diaminonaphthalene
771-97-1
|
1kg | 99% | 10000KGS | Shaanxi Dideu New Materials Co. Ltd | ||
 |
2026-06-30 | 2,3-diaminonaphthalene
771-97-1
|
1kg | 99% | 10000KGS | Shaanxi Dideu New Materials Co. Ltd |
-
- 2,3-diaminonaphthalene
771-97-1
- $2.00-8.00
- 99%
- Henan Fengda Chemical Co., Ltd
-
- 2,3-diaminonaphthalene
771-97-1
- $0.00
- 99%
- Shaanxi Dideu New Materials Co. Ltd
-
- 2,3-diaminonaphthalene
771-97-1
- $0.00
- 99%
- Shaanxi Dideu New Materials Co. Ltd
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