Molekula
2,6-Dihydroxynaphthalene
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
2,6-Dihydroxynaphthalene (CAS 581-43-1) is an organic compound featuring two hydroxyl groups at the 2 and 6 positions of the naphthalene ring. It serves as a key intermediate in the synthesis of dyes, pharmaceuticals (e.g., sulfonamide drugs), and agrochemicals, as well as in the production of polyesters and high-performance polymers. This white to off-white crystalline solid has the molecular formula C10H8O2 and a molecular weight of 160.17 g/mol, with a storage stability at ambient conditions. Classified under GHS with a Warning signal word, it requires handling with standard precautions for potential skin, eye and respiratory irritation. Molekula supplies 2,6-Dihydroxynaphthalene 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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5 g — £30.90 per pack ex VAT · £37.08 inc. VAT
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25 g — £116.90 per pack ex VAT · £140.28 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
Specifications available on request — see Documents below or contact our sales team.
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Vapour Pressure | 0.00000715 mmHg |
Source: PubChem CID 93552 (Haz-Map)
Identification
| Property | Value |
|---|---|
| SKU | 27852047 |
| CAS Number | 581-43-1 |
| IUPAC Name | naphthalene-2,6-diol |
| Molecular Formula | C10H6(OH)2 |
| Molecular Weight | 160.17 |
| Exact Mass | 160.0524 |
| SMILES | C1=CC2=C(C=CC(=C2)O)C=C1O |
| InChIKey | MNZMMCVIXORAQL-UHFFFAOYSA-N |
| InChI | InChI=1S/C10H8O2/c11-9-3-1-7-5-10(12)4-2-8(7)6-9/h1-6,11-12H |
| PubChem CID | 93552 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29072990 |
| Tariff Code | 2907290090 |
Safety & GHS
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Health Hazard
GHS07
Hazard statements
- H315 Causes skin irritation
- H319 Causes serious eye irritation
- H335 May cause respiratory irritation
Precautionary statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- 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
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-Hydroxy-6-naphthol
- 2,6-dihdroxynaphthalene
- 2,6-Naphthalenediol
- 2,6-Naphthalindiol
- 2,6-Naphthohydroquinone
- 6-hydroxy-2-naphthol
- C.I. 76640
- Naphthalene-2,6-diol
Frequently asked questions
What is 2,6-Dihydroxynaphthalene commonly used for?
It is primarily used as a precursor in the synthesis of dyes, pigments, and pharmaceutical intermediates, including as a coupling component in the production of azo dyes and in certain agrochemicals.
What is the molecular formula and molecular weight of 2,6-Dihydroxynaphthalene?
The molecular formula is C10H8O2 (corrected from C10H6(OH)2) and the molecular weight is 160.17 g/mol.
How should 2,6-Dihydroxynaphthalene be stored?
Store in a tightly sealed container at ambient temperature, away from moisture, strong oxidizing agents, and direct sunlight.
What grades or purities of 2,6-Dihydroxynaphthalene does Molekula supply?
We supply technical grade and analytical/pharmaceutical grade (98%+ purity) depending on application requirements.
Can Molekula supply 2,6-Dihydroxynaphthalene in bulk quantities?
Yes, we offer bulk quantities (minimum order quantities vary by grade; contact us for specific details).
What documentation comes with an order of 2,6-Dihydroxynaphthalene?
Each order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), and a product specification sheet.
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.