Molekula
1,5-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
1,5-Dihydroxynaphthalene is a polycyclic aromatic compound used in organic synthesis and as an intermediate in dye and pharmaceutical production. It appears as a crystalline solid with a molecular formula of C10H6(OH)2, a molecular weight of 160.17 g/mol, and is stable at ambient storage conditions. It is classified with a warning signal word due to potential health hazards. Molekula supplies 1,5-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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100 g — £29.50 per pack ex VAT · £35.40 inc. VAT
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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 | gray-white-off white powder |
| Melting Point | 250-260 °C |
| Purity (HPLC) | ≥98% |
| Alkali insoluble | ≤0.5% |
| Salt | ≤0.1% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 252 °C |
| Transport Class | 9 |
| Packing Group | III |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Vapour Pressure | 0.00000715 mmHg |
Source: PubChem CID 6749 (Haz-Map)
Identification
| Property | Value |
|---|---|
| SKU | 23668551 |
| CAS Number | 83-56-7 |
| IUPAC Name | naphthalene-1,5-diol |
| EC Number | 201-487-4 |
| Molecular Formula | C10H6(OH)2 |
| Molecular Weight | 160.17 |
| Exact Mass | 160.0524 |
| SMILES | C1=CC2=C(C=CC=C2O)C(=C1)O |
| InChIKey | BOKGTLAJQHTOKE-UHFFFAOYSA-N |
| InChI | InChI=1S/C10H8O2/c11-9-5-1-3-7-8(9)4-2-6-10(7)12/h1-6,11-12H |
| PubChem CID | 6749 |
| UN Number | UN3077 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29072990 |
| Tariff Code | 2907290090 |
Safety & GHS
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Health Hazard
GHS07
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Hazardous to the Environment
GHS09
Hazard statements
- H302 Harmful if swallowed
- H317 May cause an allergic skin reaction
- H319 Causes serious eye irritation
- H411 Toxic to aquatic life with long lasting effects
Precautionary statements
- P273 Avoid release to the environment
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician
- 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
- 1,5-dihydroxynaphtalene
- 1,5-Dihydroxynapthalene
- 1,5-Naphthalenediol
- 1,5-Naphthalindiol
- CI 76625
- Durafur Developer E
- napht
- naphthalene-1,5-diol
- Oxidation Base
Frequently asked questions
What is 1,5-Dihydroxynaphthalene used for?
It is primarily used as an intermediate in the synthesis of dyes, pharmaceuticals, and other organic compounds.
What is the chemical formula and molecular weight of 1,5-Dihydroxynaphthalene?
The formula is C10H6(OH)2 and the molecular weight is 160.17 g/mol.
How should 1,5-Dihydroxynaphthalene be stored?
It should be stored at ambient temperature, protected from moisture and light.
What grade is available for 1,5-Dihydroxynaphthalene?
Available in technical grade; custom purity options may be available upon request.
Can Molekula supply 1,5-Dihydroxynaphthalene in bulk?
Yes, bulk quantities are available—please contact our sales team for pricing and lead times.
What documentation comes with an order of 1,5-Dihydroxynaphthalene?
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.