Alizarin
Also known as: 1,2-Dihydroxyanthraquinone, 1,2-Dihydroxy-9,10-anthracenedione, Mordant Red 11, C.I. Mordant Red 11, C.I. Pigment Red 83, Alizarine, 1,2-Anthraquinonediol
Alizarin (CAS 72-48-0) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C14H8O4 and a molecular weight of 240.211 g/mol. Key properties include a melting point of 287 °C, a boiling point of 430.0±40.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 228.0±23.8 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 72-48-0
- Jingsj CID
- J-1029038-3
- Molecular Formula
- C14H8O4
- Molecular Weight
- 240.211 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 287 °C |
|---|---|
| Boiling Point | 430.0±40.0 °C at 760 mmHg |
| Density | 1.5±0.1 g/cm3 |
| Flash Point | 228.0±23.8 °C |
| Exact Mass | 240.042252 |
| PSA | 74.60000 |
| LogP | 4.09 |
| Vapor Pressure | 0.0±1.1 mmHg at 25°C |
| Refractive Index | 1.733 |
GHS Safety & Compliance
- H302 — Harmful if swallowed
Activity & Biological Data
| Additional Information | [1]. Jen M, et al. Ultrafast Intramolecular Proton Transfer of Alizarin Investigated by Femtosecond Stimulated Raman Spectroscopy. J Phys Chem B. 2017 Apr 27;121(16):4129-4136. |
|---|
Customs & Trade Information
| HS Code | 2914690090 |
|---|---|
| Summary | 2914690090 other quinones。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:5.5%。General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Alizarin?
The CAS number of Alizarin is 72-48-0.
What are the molecular formula and molecular weight of Alizarin?
Alizarin has molecular formula C14H8O4 and molecular weight 240.211 g/mol.
Is Alizarin hazardous?
Alizarin has GHS signal word Warning and hazard statements H302 — Harmful if swallowed.
What are the upstream and downstream products of Alizarin?
For Alizarin, Upstream Products: Phthalic anhydride, Catechol, Phthaloyl chloride; Downstream Products: Alizarin Complexone, protocatechuic acid, benzoic acid.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Alizarin (CAS 72-48-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1029038-3 (accessed 2026-11-07).
Data for reference only; verify product details with suppliers before purchase.