1-Naphthol
Also known as: 1-Naphthalenol, 1-hydroxynaphthalene, α-Naphthol, α-Hydroxynaphthalene, naphthalen-1-ol
1-Naphthol (CAS 90-15-3) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C10H8O and a molecular weight of 144.170 g/mol. Key properties include a melting point of 94-98ºC, a boiling point of 288.0±0.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 144.0±10.6 °C. It is classified under GHS with signal word Danger and hazard statements H302 — Harmful if swallowed, H311 — Toxic in contact with skin and H315 — Causes skin irritation. It is listed by 1 supplier, from 0.28 to 260.00 CNY. Record last updated Aug 21, 2026.
- CAS No.
- 90-15-3
- Jingsj CID
- J-21577-2
- Molecular Formula
- C10H8O
- Molecular Weight
- 144.170 g/mol
- Category
- Alcohols
- Last updated
- 8/21/2026
| Supplier | Purity / Pack | Base Price | Unit Price | Origin | |
|---|---|---|---|---|---|
In Stock | AR 500g | ¥140.00 | $0.04 /gBest ¥0.28/g CNY | CN China MOQ 500g | |
In Stock | AR 25g | ¥10.00 | $0.06 /g ¥0.40/g CNY | CN China MOQ 25g | |
In Stock | AR 100g | ¥43.00 | $0.06 /g ¥0.43/g CNY | CN China MOQ 100g |
Physicochemical Properties
| Melting Point | 94-98ºC |
|---|---|
| Boiling Point | 288.0±0.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 144.0±10.6 °C |
| Exact Mass | 144.057510 |
| PSA | 20.23000 |
| LogP | 2.71 |
| Additional Property | 4.5 (120 °C, vs air) |
| Vapor Pressure | 0.0±0.6 mmHg at 25°C |
| Refractive Index | 1.678 |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H311 — Toxic in contact with skin
- H315 — Causes skin irritation
- H318 — Causes serious eye damage
- H335 — May cause respiratory irritation
- H411 — Toxic to aquatic life with long lasting effects
Activity & Biological Data
| Target | Human Endogenous Metabolite |
|---|---|
| Additional Information | [1]. Swain J, et al. 1-Naphthol as an ESPT fluorescent molecular probe for sensing thermotropic microenvironmental changes of pluronic F127 in aqueous media. Phys Chem Chem Phys. 2015 Jul 14;17(26):16752-9. |
Customs & Trade Information
| HS Code | 2907151000 |
|---|---|
| Summary | HS:2907151000 naphthalen-2-ol VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:5.5% General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 1-Naphthol?
The CAS number of 1-Naphthol is 90-15-3.
What are the molecular formula and molecular weight of 1-Naphthol?
1-Naphthol has molecular formula C10H8O and molecular weight 144.170 g/mol.
Which suppliers offer 1-Naphthol?
1 supplier(s) listed; reference unit price ¥0.28–260.00 /g.
Is 1-Naphthol hazardous?
1-Naphthol has GHS signal word Danger and hazard statements H302 — Harmful if swallowed; H311 — Toxic in contact with skin; H315 — Causes skin irritation.
What are the upstream and downstream products of 1-Naphthol?
For 1-Naphthol, Upstream Products: 1-Bromonaphthalene, 1,4-Epoxy-1,4-dihydronaphthalene, 1-Iodonaphthalene; Downstream Products: 4-Biphenylcarboxaldehyde, benzoic acid, 5-Methoxy-1,2,3,4-tetrahydronaphthalene.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1-Naphthol (CAS 90-15-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-21577-2 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.