Molekula
Dithranol (1,8,9-trihydroxyanthracene)
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
Dithranol, also known as 1,8,9-trihydroxyanthracene, is a topical medication used primarily in the treatment of psoriasis. It functions as a keratolytic and anti-inflammatory agent. In the laboratory, it also serves as a matrix compound for MALDI mass spectrometry of synthetic polymers. Available in powder form, it has a CAS number of 1143-38-0, a molecular formula of C14H10O3, and a molecular weight of 226.23 g/mol. It should be stored at ambient temperatures and handled with caution due to its warning signal word. Molekula supplies Dithranol 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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1 g — £77.70 per pack ex VAT · £93.24 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 Microcrystalline powder |
| Loss on Drying | <0.5% |
| Assay | ≥98% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Acid |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Melting Point | 178-182 °C |
Source: PubChem CID 2202 (DrugBank)
Identification
| Property | Value |
|---|---|
| SKU | 10673396 |
| CAS Number | 1143-38-0 |
| IUPAC Name | 1,8-dihydroxy-10H-anthracen-9-one |
| EC Number | 214-538-0 |
| Molecular Formula | C14H10O3 |
| Molecular Weight | 226.23 |
| Exact Mass | 226.063 |
| SMILES | C1C2=C(C(=CC=C2)O)C(=O)C3=C1C=CC=C3O |
| InChIKey | NUZWLKWWNNJHPT-UHFFFAOYSA-N |
| InChI | InChI=1S/C14H10O3/c15-10-5-1-3-8-7-9-4-2-6-11(16)13(9)14(17)12(8)10/h1-6,15-16H,7H2 |
| PubChem CID | 2202 |
| REACH Code | Y113 |
| HTS Code | 2914.50.3000 |
| Tariff Code | 2914500090 |
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
- P264 Wash thoroughly after handling
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P303+P361+P353 IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower
- P304+P340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
- P305+P351+P338 IF IN EYES: Rinse continuously 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, 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.
Synonyms
- 1,8-Dihydroxy-9-anthrone
- 9(10H)-Anthracenone, 1,8-dihydroxy-
- Anthra-Derm
- anthralin
- Batridol
- Chrysodermol
- Cignolin
- Cigthranol
- Dithranol
- Psoriacid-Stift
Frequently asked questions
What is Dithranol used for?
Dithranol is primarily used in the treatment of psoriasis, where it helps reduce skin cell overgrowth and inflammation.
What is the chemical formula and molecular weight of Dithranol?
The formula is C14H10O3 with a molecular weight of 226.23 g/mol.
How should Dithranol be stored?
Dithranol should be stored at ambient temperature, protected from light and moisture.
What grade of Dithranol does Molekula supply?
Molekula supplies Dithranol in research-grade purity suitable for laboratory use.
Can Molekula supply Dithranol in bulk quantities?
Yes, Molekula can supply Dithranol in bulk quantities—please contact our sales team for pricing and availability.
What documentation comes with a Dithranol order?
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.