1-Nitroso-2-naphthol
- CAS No.
- 131-91-9
- Chemical Name:
- 1-Nitroso-2-naphthol
- Synonyms
- CI NO 10005;Cobalt reagent;zelenmoridlova4;Zelen moridlova 4;1-Nitroso-2-phthol;Nitroso-2-Naphthol;Nitroso-β-naphthol;1-Nitroso-2-naftol;TIMTEC-BB SBB009148;1-nitroso-2-naphtho
- CBNumber:
- CB2268400
- Molecular Formula:
- C10H7NO2
- Molecular Weight:
- 173.17
- MDL Number:
- MFCD00003884
- MOL File:
- 131-91-9.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Product description | Number | Pack Size | Price |
| 1-Nitroso-2-naphthol 97% | 114693 | 25g | $87.8 |
| 1-Nitroso-2-naphthol 97% | 114693 | 100g | $175 |
| 1-Nitroso-2-naphthol >98.0%(GC)(T) | N0266 | 25g | $56 |
| 1-Nitroso-2-naphthol | 285476 | 50g | $382 |
| 1-Nitroso-2-naphthol | N522543 | 5g | $45 |
| More product size | |||
| Melting point | 106-108 °C (dec.) (lit.) |
|---|---|
| Boiling point | 303.81°C (rough estimate) |
| Density | 1.2427 (rough estimate) |
| refractive index | 1.5200 (estimate) |
| storage temp. | Keep in dark place,Sealed in dry,Room Temperature |
| pka | 7.87±0.10(Predicted) |
| form | crystalline |
| Colour Index | 10005 |
| color | tan to brown |
| Water Solubility | insoluble |
| Merck | 14,6641 |
| BRN | 776947 |
| InChI | 1S/C10H7NO2/c12-9-6-5-7-3-1-2-4-8(7)10(9)11-13/h1-6,12H |
| InChIKey | YXAOOTNFFAQIPZ-UHFFFAOYSA-N |
| SMILES | Oc1ccc2ccccc2c1N=O |
| CAS DataBase Reference | 131-91-9(CAS DataBase Reference) |
| EWG's Food Scores | 1 |
| FDA UNII | 757I55U2QX |
| NIST Chemistry Reference | 2-Naphthalenol, 1-nitroso-(131-91-9) |
| EPA Substance Registry System | 2-Naphthalenol, 1-nitroso- (131-91-9) |
| UNSPSC Code | 12352100 |
| NACRES | NA.22 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H302-H315-H319-H335 | |||||||||
| Precautionary statements | P261-P264-P270-P301+P312-P302+P352-P305+P351+P338 | |||||||||
| PPE | dust mask type N95 (US), Eyeshields, Gloves | |||||||||
| Hazard Codes | Xn | |||||||||
| Risk Statements | 22-36/37/38-33-20/21/22 | |||||||||
| Safety Statements | 26-36-45 | |||||||||
| RIDADR | UN3077 | |||||||||
| WGK Germany | 3 | |||||||||
| RTECS | QL4725000 | |||||||||
| F | 8 | |||||||||
| TSCA | TSCA listed | |||||||||
| HazardClass | 9 | |||||||||
| PackingGroup | III | |||||||||
| HS Code | 29089000 | |||||||||
| Storage Class | 11 - Combustible Solids | |||||||||
| Hazard Classifications | Acute Tox. 4 Oral Eye Irrit. 2 Muta. 2 Skin Irrit. 2 Skin Sens. 1 |
|||||||||
| Toxicity | LDLo orl-rat: 500 mg/kg NCNSA6 5,35,53 | |||||||||
| NFPA 704 |
|
1-Nitroso-2-naphthol price More Price(28)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 114693 | 1-Nitroso-2-naphthol 97% | 131-91-9 | 25g | $87.8 | 2026-03-19 | Buy |
| Sigma-Aldrich | 114693 | 1-Nitroso-2-naphthol 97% | 131-91-9 | 100g | $175 | 2026-03-19 | Buy |
| TCI Chemical | N0266 | 1-Nitroso-2-naphthol >98.0%(GC)(T) | 131-91-9 | 25g | $56 | 2026-03-19 | Buy |
| Usbiological | 285476 | 1-Nitroso-2-naphthol | 131-91-9 | 50g | $382 | 2021-12-16 | Buy |
| TRC | N522543 | 1-Nitroso-2-naphthol | 131-91-9 | 5g | $45 | 2021-12-16 | Buy |
1-Nitroso-2-naphthol Chemical Properties,Uses,Production
Chemical Properties
brown powder
Uses
Organic synthesis, prevention of gum formation in gasoline, dye intermediate, analytical reagent.
Uses
1-Nitroso-2-naphthol as a complexing agent for the on-line preconcentration of cobalt with FI-FAAS. 1-Nitroso-2-naphthol is the chelating ion-exchanger in the synthesis of alumina adsorbents that are of acidic, basic and neutral nature. It is used for the removal and preconcentration of Pb(II), Cu(II), Cr(III) from waste, as well as drinking water. It is also used in the preconcentration of cobalt using C(18) microcolumn with flow injection that is coupled to a flame atomic absorption spectrometry (FI-FAAS) system. 1-Nitroso-2-naphthol is used in the preparation of 1-nitroso-2-naphthol-sodium nitrite reagent.
Definition
ChEBI: 1-Nitroso-2-naphthol is a member of naphthols.
Safety Profile
Moderately toxic by ingestion.Many nitroso compounds are carcinogens. Ignites whenheated to 124°C. Mutation data reported. When heated todecomposition it emits toxic fumes of NOx.
Purification Methods
Crystallise the naphthol from pet ether (b 60-80o, 7.5mL/g). [Beilstein 7 H 712, 7 IV 2419.]
1-Nitroso-2-naphthol Preparation Products And Raw materials
Raw materials
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Preparation Products
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| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Hebei Chuanghai Biotechnology Co., Ltd | +8615350571055 | Sibel@chuanghaibio.com | China | 8738 | 58 |
| Henan Fengda Chemical Co., Ltd | +86-371-86557731 +86-13613820652 | info@fdachem.com | China | 20124 | 58 |
| Shanghai Daken Advanced Materials Co.,Ltd | +86-2158073036 | info@dakenam.com | China | 13815 | 58 |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | info@tianfuchem.com | China | 21592 | 55 |
| Fluoropharm Co., Ltd. | +86-0571-85586753 +86-13336034509 | sales@fluoropharm.com | China | 1445 | 60 |
| career henan chemical co | +86-0371-86658258 +8613203830695 | sales@coreychem.com | China | 29821 | 58 |
| Shandong chuangyingchemical Co., Ltd. | 18853181302 | sale@chuangyingchem.com | CHINA | 5906 | 58 |
| CONIER CHEM AND PHARMA LIMITED | +8618523575427 | sales@conier.com | China | 49977 | 58 |
| Richest Group Ltd | 18017061086 | oled@richest-group.com | CHINA | 5600 | 58 |
| Hefei TNJ Chemical Industry Co.,Ltd. | +86-0551-65418671 +8618949823763 | sales@tnjchem.com | China | 34563 | 58 |
View Lastest Price from 1-Nitroso-2-naphthol manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-03-20 | 1-Nitroso-2-naphthol
131-91-9
|
US $10.00 / KG | 1KG | 99% | 10 mt | Hebei Chuanghai Biotechnology Co., Ltd | |
 |
2025-09-25 | 1-Nitroso-2-naphthol
131-91-9
|
US $100.00-1.00 / KG | 1KG | 99% | g-kg-tons, free sample is available | Henan Fengda Chemical Co., Ltd | |
 |
2020-02-26 | 1-Nitroso-2-naphthol
131-91-9
|
US $0.00-0.00 / KG | 1KG | 99.0%+ | 100 tons | Shaanxi Dideu Medichem Co. Ltd |
-
- 1-Nitroso-2-naphthol
131-91-9
- US $10.00 / KG
- 99%
- Hebei Chuanghai Biotechnology Co., Ltd
-
- 1-Nitroso-2-naphthol
131-91-9
- US $100.00-1.00 / KG
- 99%
- Henan Fengda Chemical Co., Ltd
-
- 1-Nitroso-2-naphthol
131-91-9
- US $0.00-0.00 / KG
- 99.0%+
- Shaanxi Dideu Medichem Co. Ltd
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