1,8-Diaminonaphthalene
- CAS No.
- 479-27-6
- Chemical Name:
- 1,8-Diaminonaphthalene
- Synonyms
- Naphthalene-1,8-diamine;1,8-NAPHTHALENEDIAMINE;1,8-Diaminonaphthalene,99%;1,8-DiaminonaphthaL;8-Diaminonaphthalene;1,8-Diaminonaphthale;1,8-Naphthylendiamin;1,8-Diaminonaphthalane;1,8-DIAMINONAPHTHALONE;DIAMINONAPHTHALENE-1,8
- CBNumber:
- CB2728423
- Molecular Formula:
- C10H10N2
- Molecular Weight:
- 158.2
- MOL File:
- 479-27-6.mol
- MSDS File:
- SDS
- Modify Date:
- 2025/1/27 9:38:02
| Melting point | 60-65 °C (lit.) |
|---|---|
| Boiling point | 205 °C/12 mmHg (lit.) |
| Density | 1.1265 |
| vapor pressure | 0.011Pa at 25℃ |
| refractive index | 1.6829 |
| Flash point | 205°C/12mm |
| storage temp. | Store below +30°C. |
| solubility | methanol: soluble |
| form | Chunks or Crystalline Mass |
| pka | 4.46±0.10(Predicted) |
| color | Grayish-red to gray or dark brown |
| Water Solubility | slightly soluble |
| Merck | 14,6372 |
| BRN | 742841 |
| Stability | Air Sensitive |
| InChIKey | YFOOEYJGMMJJLS-UHFFFAOYSA-N |
| LogP | 1.335 |
| CAS DataBase Reference | 479-27-6(CAS DataBase Reference) |
| NIST Chemistry Reference | 1,8-Naphthalenediamine(479-27-6) |
| EPA Substance Registry System | 1,8-Naphthalenediamine (479-27-6) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |   GHS07,GHS08 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H302-H317-H351 | |||||||||
| Precautionary statements | P201-P280-P301+P312+P330-P302+P352-P308+P313 | |||||||||
| Hazard Codes | Xn,Xi | |||||||||
| Risk Statements | 22-40-43-36/37/38 | |||||||||
| Safety Statements | 36/37-36/37/39-26-24-36 | |||||||||
| RIDADR | 2811 | |||||||||
| WGK Germany | 3 | |||||||||
| F | 8 | |||||||||
| Hazard Note | Irritant | |||||||||
| TSCA | Yes | |||||||||
| HS Code | 29215940 | |||||||||
| Toxicity | LD50 orally in Rabbit: 800 mg/kg | |||||||||
| NFPA 704 |
|
1,8-Diaminonaphthalene price More Price(10)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich(India) | D21405 | 1,8-Diaminonaphthalene 99% | 479-27-6 | 5G | ₹1959.33 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | D21405 | 1,8-Diaminonaphthalene 99% | 479-27-6 | 100G | ₹5044.45 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 8.06206 | 1,8-Naphthalenediamine for synthesis | 479-27-6 | 100G | ₹5730 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 8.06206 | 1,8-Naphthalenediamine for synthesis | 479-27-6 | 500G | ₹19970 | 2022-06-14 | Buy |
| ALFA India | ALF-A15966-30 | 1,8-Diaminonaphthalene, 97% | 479-27-6 | 250g | ₹11235 | 2022-05-26 | Buy |
1,8-Diaminonaphthalene Chemical Properties,Uses,Production
Chemical Properties
Off white powder. 1,8-Naphthalenediamine [479-27-6]. 1,8-diaminonaphthalene, Deltamin, C10H10N2, Mr 158.2, turns brown in air even in the absence of light. Its solutions give a brown precipitate on addition of iron(III) chloride. Treatment with boiling aqueous sodium bisulfite followed by addition of alkali gives 8-amino-1-hydroxynaphthalene. Sulfonation takes place in the 4- position. Coupling with azo compounds also occurs in the 4-position, but in almost neutral solution 4,5-bis coupling can occur. The resulting bisazo compound is reduced with SnCl2– HCl to give 1,4,5,8-tetraaminonaphthalene.
Uses
1,8-Diaminonaphthalene is an important raw material and intermediate used in organic synthesis, pharmaceuticals and agrochemicals. 1,8-Naphthalenediamine has minor use as an antioxidant for lubricating oils and as an analytical reagent for the detection of selenium and nitrites.
Production Methods
Reduction of 1,8-dinitronaphthalene is carried out with iron and acetic acid in xylene or by catalytic hydrogenation.
Purification Methods
Crystallise 1,8-diaminonaphthalene from water or aqueous EtOH, and sublime it in a vacuum. The N,N'-dimethyl derivative [20734-56-9] has m 103-104o and pK2 5 5.61, the N,N,N'-trimethyl-derivative [20734-57-0] has m 29-30o and pK2 5 6.43. [Hodgson et al. J Chem Soc 202 1945, Beilstein 13 IV 344.]
1,8-Diaminonaphthalene Preparation Products And Raw materials
Raw materials
Preparation Products
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chevron_right| Supplier | Tel | Country | ProdList | Advantage | Inquiry |
|---|---|---|---|---|---|
| VGS SYNTHESIS PRIVATE LIMITED | +91-9866975588 +91-9866975588 | Hyderabad, India | 1817 | 58 | Inquiry |
| Vijay Chemical Industries | +91-7738620850 +91-9687604766 | Maharashtra, India | 30 | 58 | Inquiry |
| Sarna Chemicals Private Limited | +91-9979863057 +91-9979863057 | Gujarat, India | 29 | 58 | Inquiry |
| Clearsynth Labs | 91-22-45045900 | Maharashtra, India | 3887 | 58 | Inquiry |
| Reax Chemicals | 08048372701Ext 416 | Hyderabad, India | 4217 | 58 | Inquiry |
| TCI Chemicals (India) Pvt. Ltd. | 1800 425 7889 | New Delhi, India | 6768 | 58 | Inquiry |
| Alfa Aesar | 1 800 209 7001 | Maharashtra, India | 6905 | 58 | Inquiry |
| Vijay Chemical Industries | 91-22-27691192 | Maharashtra, India | 5 | 58 | Inquiry |
| Jeet Speciality Chemicals | 91-22-28950630 | Maharashtra, India | 19 | 58 | Inquiry |
| HiMedia Laboratories | 91-22-61471919 | Maharashtra, India | 1841 | 58 | Inquiry |
| Supplier | Advantage |
|---|---|
| VGS SYNTHESIS PRIVATE LIMITED | 58 |
| Vijay Chemical Industries | 58 |
| Sarna Chemicals Private Limited | 58 |
| Clearsynth Labs | 58 |
| Reax Chemicals | 58 |
| TCI Chemicals (India) Pvt. Ltd. | 58 |
| Alfa Aesar | 58 |
| Vijay Chemical Industries | 58 |
| Jeet Speciality Chemicals | 58 |
| HiMedia Laboratories | 58 |
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