Molekula
Alizarin (C.I. 58000)
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
Alizarin (C.I. 58000) is a natural dye derived from madder root, used in textile dyeing, analytical chemistry, and as a pH indicator. It is a red crystalline solid with the molecular formula C14H8O4 and a molecular weight of 240.21 g/mol. CAS number: 72-48-0. Store at ambient temperature. Signal word: Danger. Molekula supplies Alizarin (C.I. 58000) 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 — £42.60 per pack ex VAT · £51.12 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 | Brown to orange/ yellow powder |
| Grade | Industrial |
| Residue on Ignition | 2.0% max |
| Indicator | pH 5.8 to 7.2 |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 9 |
| Packing Group | III |
| Acidity | Acid |
For research use only. Not for human use.
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Melting Point | 289 °C |
| Boiling Point | 430 °C at 760 mmHg |
Source: PubChem CID 6293 (PAC Chemical Database)
Identification
| Property | Value |
|---|---|
| SKU | 29169958 |
| CAS Number | 72-48-0 |
| IUPAC Name | 1,2-dihydroxyanthracene-9,10-dione |
| EC Number | 200-782-5 |
| Molecular Formula | C14H8O4 |
| Molecular Weight | 240.21 |
| Exact Mass | 240.0423 |
| SMILES | C1=CC=C2C(=C1)C(=O)C3=C(C2=O)C(=C(C=C3)O)O |
| InChIKey | RGCKGOZRHPZPFP-UHFFFAOYSA-N |
| InChI | InChI=1S/C14H8O4/c15-10-6-5-9-11(14(10)18)13(17)8-4-2-1-3-7(8)12(9)16/h1-6,15,18H |
| PubChem CID | 6293 |
| UN Number | UN3077 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 3204.12.5090 |
| Tariff Code | 3204120090 |
Safety & GHS
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Corrosive
GHS05
-
Health Hazard
GHS07
-
Hazardous to the Environment
GHS09
Hazard statements
- H302 Harmful if swallowed
- H317 May cause an allergic skin reaction
- H318 Causes serious eye damage
- H410 Very toxic to aquatic life with long lasting effects
Precautionary statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P273 Avoid release to the environment
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+P330+P331 IF SWALLOWED: Rinse mouth. Do NOT induce vomiting
- P302+P352 IF ON SKIN: Wash with soap and water
- 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, German, Spanish, French, Italian, Portuguese, Arabic, Dutch.
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
- 1,2-Anthraquinonediol
- 1,2-Dihydroxy-9,10-anthracenedione
- 1,2-dihydroxyanthracene-9,10-dione
- 1,2-Dihydroxyanthraquinone
- Alizarin
- Alizarin B
- ALIZARINE
- Alizarine Red
- Mordant Red 11
- Turkey Red
Frequently asked questions
What is Alizarin (C.I. 58000) used for?
Alizarin is primarily used as a dye in textile and leather coloring, and as a reagent in analytical chemistry for detecting metal ions.
What is the chemical formula and molecular weight of Alizarin?
The chemical formula is C14H8O4, and the molecular weight is 240.21 g/mol.
How should Alizarin be stored?
Alizarin should be stored at ambient temperature, away from light and moisture, in a tightly sealed container.
What grade of Alizarin does Molekula supply?
Molekula supplies Alizarin in analytical grade, suitable for laboratory and research applications.
Can Molekula supply Alizarin in bulk?
Yes, Molekula can supply Alizarin in bulk quantities; please contact our sales team for pricing and availability.
What documentation comes with an order of Alizarin?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS), compliant with GHS standards.
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.