Rhein
大黄酸
Also known as: 1,8-dihydroxy-3-carboxyanthraquinone, 4,5-dihydroxyanthraquinone-2-carboxylic acid, 9,10-dihydro-4,5-dihydroxy-9,10-dioxo-2-anthracenecarboxylic acid, cassic acid, chrysazin-3-carboxylic acid, monorhein, rheic acid, rhubarb yellow
- CAS No.
- 478-43-3
- Jingsj CID
- J-3565-9
- Molecular Formula
- C15H8O6
- Chinese Name
- 大黄酸
- Molecular Weight
- 284.220 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | ≥300 °C(lit.) |
|---|---|
| Boiling Point | 597.8±50.0 °C at 760 mmHg |
| Density | 1.7±0.1 g/cm3 |
| Flash Point | 329.4±26.6 °C |
GHS Safety & Compliance
IrritantSignal word: Warning
Frequently Asked Questions
What is the CAS number of Rhein?
478-43-3
What are the molecular formula and molecular weight of Rhein?
C15H8O6, molecular weight 284.220 g/mol
Is Rhein hazardous?
Warning
Data compiled from public chemical databases and supplier catalogs; verify specifications with suppliers before purchase. · Last updated: 8/21/2026