Molekula
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
2-Naphthol is an aromatic organic compound featuring a hydroxyl group attached to a naphthalene ring, widely used in dye synthesis, pharmaceuticals, and agrochemical production as a key intermediate. It appears as a white to pale yellow crystalline solid with a faint phenolic odor. This chemical has a CAS number of 135-19-3, molecular formula C10H7OH, and a molecular weight of 144.17 g/mol. Store at ambient temperatures in a well-ventilated area, away from oxidizing agents and light. The signal word is Danger, indicating high hazard potential. Molekula supplies 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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100 g — £28.00 per pack ex VAT · £33.60 inc. VAT
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500 g — £43.10 per pack ex VAT · £51.72 inc. VAT
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 |
| 2-Naphthol | ≥99.0% |
| 1-Naphthol | ≤0.40% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 153 °C |
| Transport Class | 9 |
| Packing Group | III |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Odour | Faint phenol-like odor |
| Melting Point | 122 °C |
| Boiling Point | 285 °C |
| Density | 1.28 g/cm³ at 20 °C |
| Water Solubility | 755 mg/L at 25 °C |
| Solubility (other solvents) | Soluble in alcohol, ether, chloroform, glycerol, oils, alkaline solutions |
| Vapour Pressure | 2 Pa at 25 °C |
| pKa | pKa = 9.51 |
| log P (octanol/water) | 2.70 |
Source: PubChem CID 8663 (HSDB, ICSC)
Identification
| Property | Value |
|---|---|
| SKU | 46883024 |
| CAS Number | 135-19-3 |
| IUPAC Name | naphthalen-2-ol |
| EC Number | 205-182-7 |
| Molecular Formula | C10H7OH |
| Molecular Weight | 144.17 |
| Exact Mass | 144.0575 |
| SMILES | C1=CC=C2C=C(C=CC2=C1)O |
| InChIKey | JWAZRIHNYRIHIV-UHFFFAOYSA-N |
| InChI | InChI=1S/C10H8O/c11-10-6-5-8-3-1-2-4-9(8)7-10/h1-7,11H |
| PubChem CID | 8663 |
| UN Number | UN3077 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29071530 |
| Tariff Code | 2907159010 |
Safety & GHS
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Corrosive
GHS05
-
Health Hazard
GHS07
-
Hazardous to the Environment
GHS09
Hazard statements
- H302 Harmful if swallowed
- H317 May cause an allergic skin reaction
- H318 Causes serious eye damage
- H332 Harmful if inhaled
- H400 Very toxic to aquatic life
Precautionary statements
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P273 Avoid release to the environment
- P301+310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician
- P302+352 IF ON SKIN: Wash with soap and water
- P304+340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
- 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 Bulgarian, 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
- 2-Hydroxynaphthalene
- 2-Naphthalenol
- 2-Naphtol
- beta-Hydroxynaphthalene
- beta-naphthol
- Developer A
- Developer BN
- Isonaphthol
- naphthalen-2-ol
- Naphthol B
Frequently asked questions
What is 2-Naphthol commonly used for?
2-Naphthol is primarily used in the production of dyes, pigments, and synthetic resins, as well as in the manufacture of pharmaceuticals and agrochemicals.
What is the chemical formula and molecular weight of 2-Naphthol?
The chemical formula is **C₁₀H₇OH**, and the molecular weight is **144.17 g/mol**.
How should 2-Naphthol be stored?
Store 2-Naphthol at **ambient temperature** in a cool, dry place, away from incompatible substances and sources of ignition.
What grades or purity levels of 2-Naphthol does Molekula supply?
Molekula supplies **technical-grade and high-purity (98%+) 2-Naphthol**—confirm availability for your specific application.
Can Molekula supply 2-Naphthol in bulk quantities?
Yes, Molekula can supply **bulk quantities of 2-Naphthol** (minimum order quantities may apply—contact us for details).
What documentation comes with an order of 2-Naphthol?
Each order includes a **Certificate of Analysis (CoA), Safety Data Sheet (SDS), and a product specification sheet** for traceability and compliance.
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.