Molekula
1-Nitroso-2-naphthol
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
1-Nitroso-2-naphthol is a nitroso-substituted naphthol used in organic synthesis and as a reagent in analytical chemistry. Its documented applications include serving as an analytical reagent for determining cobalt and as an additive that inhibits gum formation in gasoline. It appears as a crystalline solid and is sensitive to light and air. CAS: 131-91-9, Molecular Formula: C10H7NO2, Molecular Weight: 173.17 g/mol, Storage: Ambient, Signal Word: Warning. Molekula supplies 1-Nitroso-2-naphthol from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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10 g — $57.00 per pack
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25 g — $93.40 per pack
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | Solid |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 9 |
| Packing Group | III |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Vapour Pressure | 0.0000911 mmHg |
Source: PubChem CID 8580 (Haz-Map)
Identification
| Property | Value |
|---|---|
| SKU | 53014082 |
| CAS Number | 131-91-9 |
| IUPAC Name | 1-nitrosonaphthalen-2-ol |
| EC Number | 205-043-0 |
| Molecular Formula | ONC10H6OH |
| Molecular Weight | 173.17 |
| Exact Mass | 173.0477 |
| SMILES | C1=CC=C2C(=C1)C=CC(=C2N=O)O |
| InChIKey | YXAOOTNFFAQIPZ-UHFFFAOYSA-N |
| InChI | InChI=1S/C10H7NO2/c12-9-6-5-7-3-1-2-4-8(7)10(9)11-13/h1-6,12H |
| PubChem CID | 8580 |
| UN Number | UN3077 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29089990 |
| Tariff Code | 2908990000 |
Safety & GHS
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Health Hazard
GHS07
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Hazardous to the Environment
GHS09
Hazard statements
- H302 Harmful if swallowed
- H315 Causes skin irritation
- H319 Causes serious eye irritation
- H335 May cause respiratory irritation
- H400 Very toxic to aquatic life
Precautionary statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P273 Avoid release to the environment
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+312 IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell
- P302+352 IF ON SKIN: Wash with soap and water
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- 1-(hydroxyimino)naphthalen-2(1H)-one
- 1-Nitroso-2-naftol
- 1-nitrosonaphthalen-2-ol
- 1,2-Naphthalenedione, 1-oxime
- 2-Naphthalenol, 1-nitroso-
- 2-Naphthol, 1-nitroso-
- alpha-Nitroso-beta-naphthol
- C.I. 10000
- Nitroso-beta-naphthol
- Zelen moridlova 4
Frequently asked questions
What is 1-Nitroso-2-naphthol used for?
It is primarily used as a reagent in organic synthesis, particularly in the formation of azo dyes and as a test reagent for certain metal ions.
What is the chemical formula and molecular weight of 1-Nitroso-2-naphthol?
The formula is ONC10H6OH and the molecular weight is 173.17 g/mol.
How should 1-Nitroso-2-naphthol be stored?
It should be stored at ambient temperature, protected from light and moisture.
What grade is available for 1-Nitroso-2-naphthol?
Available in technical grade; custom purity levels may be requested.
Can Molekula supply 1-Nitroso-2-naphthol in bulk?
Yes, bulk quantities are available upon request; please contact our sales team for pricing and lead times.
What documentation comes with an order of 1-Nitroso-2-naphthol?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS) with the shipment.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.