Molekula
1,2-Naphthoquinone
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 1999 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
1,2-Naphthoquinone is an aromatic organic compound with a quinone structure, primarily used in organic synthesis, dye production, and as a reagent in biochemical research. It serves as a precursor in pharmaceuticals, antioxidants, and analytical chemistry applications. This chemical has a CAS number of 524-42-5, with the molecular formula C10H6O2 and a molecular weight of 158.15 g/mol. It requires storage at -15 to -20°C and carries a signal word of *Warning* for safety handling. Molekula supplies 1,2-Naphthoquinone 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
On backorder — expected to ship by 25 November 2026
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 — £123.10 per pack ex VAT · £147.72 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 | Yellow to brown or black solid |
| Assay HPLC | >95% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | -15 to -20 °C |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Golden yellow needles |
| Odour | Odorless |
| Melting Point | 145-7 °C (decomp) |
| Vapour Pressure | 0.000099 mmHg |
Source: PubChem CID 10667 (HSDB, Haz-Map)
Identification
| Property | Value |
|---|---|
| SKU | 42251673 |
| CAS Number | 524-42-5 |
| IUPAC Name | naphthalene-1,2-dione |
| EC Number | 208-360-2 |
| Molecular Formula | C10H6O2 |
| Molecular Weight | 158.15 |
| Exact Mass | 158.0368 |
| SMILES | C1=CC=C2C(=C1)C=CC(=O)C2=O |
| InChIKey | KETQAJRQOHHATG-UHFFFAOYSA-N |
| InChI | InChI=1S/C10H6O2/c11-9-6-5-7-3-1-2-4-8(7)10(9)12/h1-6H |
| PubChem CID | 10667 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2914.69.9000 |
| Tariff Code | 2914698090 |
Safety & GHS
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Health Hazard
GHS07
Hazard statements
- H302 Harmful if swallowed
- 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
- P301+312 IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell
- P303+361 IF ON SKIN (or hair): Remove immediately all contaminated clothing. Rinse with water/shower
- 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 English, English (US), French, German, Italian, Portuguese, 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.
Quality certificates
Molekula Group is certified to ISO 9001:2015 (quality) and ISO 14001:2015 (environmental management), audited by a UKAS-accredited body. Both certificates are valid to 17 May 2028.
Synonyms
- 1,2-Dihydro-1,2-diketo-naphthalene
- 1,2-dihydronaphthalene-1,2-dione
- 1,2-Naftochinon
- 1,2-Naphthalenedione
- 1,2-Naphthaquinone
- beta-Naphthoquinone
- naphthalene-1,2-dione
- o-Naphthoquinone
- ortho-naphthoquinone
Frequently asked questions
What is 1,2-Naphthoquinone commonly used for?
1,2-Naphthoquinone is primarily used as a reagent in organic synthesis, a precursor in the production of dyes, and in biochemical research for redox studies.
What is the chemical formula and molecular weight of 1,2-Naphthoquinone?
The chemical formula is **C10H6O2**, and the molecular weight is **158.15 g/mol**.
How should 1,2-Naphthoquinone be stored?
Store at **-15 to -20°C** to maintain stability; protect from light and moisture.
What purity grades are available for 1,2-Naphthoquinone?
Molekula supplies **analytical grade (≥98%)** and **synthetic grade (≥97%)** for 1,2-Naphthoquinone.
Can Molekula supply 1,2-Naphthoquinone in bulk quantities?
Yes, bulk quantities are available upon request—contact our sales team for custom packaging and pricing.
What documentation is provided with an order of 1,2-Naphthoquinone?
Each order includes a **Certificate of Analysis (CoA)**, **Material Safety Data Sheet (MSDS)**, and **batch-specific documentation** for traceability.
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.