Rosmarinic acid
迷迭香酸
Also known as: (R)-Rosmarinic acid, Rosmarinate, Labiatenic acid, Rosemaric acid, Rosemary acid, MFCD00017740, (2R)-3-(3,4-Dihydroxyphenyl)-2-{[(2E)-3-(3,4-dihydroxyphenyl)-2-propenoyl]oxy}propanoic acid, 3,4-Dihydroxycinnamic acid (R)-1-carboxy-2-(3,4-dihydroxyphenyl)ethyl ester, (R)-O-(3,4-Dihydroxycinnamoyl)-3-(3,4-dihydroxyphenyl)lactic acid, R-(+)-2-(3,4-Dihydroxycinnamoyloxy)-3-(3,4-dihydroxyphenyl)propionic acid
Rosmarinic acid (CAS 20283-92-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C18H16O8 and a molecular weight of 360.315 g/mol. It is also known as (R)-Rosmarinic acid, Rosmarinate and Labiatenic acid. Key properties include a melting point of 171-175 °C(lit.), a boiling point of 694.7±55.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 254.5±25.0 °C. It is classified under GHS with signal word Danger and hazard statements H301 — Toxic if swallowed and H400 — Very toxic to aquatic life. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 20283-92-5
- Jingsj CID
- J-3360-2
- Molecular Formula
- C18H16O8
- Chinese Name
- 迷迭香酸
- Molecular Weight
- 360.315 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 171-175 °C(lit.) |
|---|---|
| Boiling Point | 694.7±55.0 °C at 760 mmHg |
| Density | 1.5±0.1 g/cm3 |
| Flash Point | 254.5±25.0 °C |
| Exact Mass | 360.084503 |
| PSA | 144.52000 |
| LogP | 1.70 |
| Vapor Pressure | 0.0±2.3 mmHg at 25°C |
| Refractive Index | 1.714 |
GHS Safety & Compliance
- H301 — Toxic if swallowed
- H400 — Very toxic to aquatic life
Activity & Biological Data
| Target | IC50: 50.1 μM (MAO-A), 184.6 μM (MAO-B), 26.7 μM (COMT)[1] |
|---|---|
| Additional Information | [1]. Andrade JM, et al. Combining in vitro and in silico approaches to evaluate the multifunctional profile of rosmarinic acid from Blechnum brasiliense on targets related to neurodegeneration. Chem Biol Interact. 2016 Jul 25;254:135-45. [2]. Fernando PM, et al. Rosmarinic Acid Attenuates Cell Damage against UVB Radiation-Induced Oxidative Stress via Enhancing Antioxidant Effects in Human HaCaT Cells. Biomol Ther (Seoul). 2016 Jan;24(1):75-84. [3]. Jin BR, et al. Rosmarinic acid suppresses colonic inflammation in dextran sulphate sodium (DSS)-induced mice via dual inhibition of NF-κB and STAT3 activation. Sci Rep. 2017 Apr 6;7:46252. |
Customs & Trade Information
| HS Code | 2932999099 |
|---|---|
| Summary | 2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of Rosmarinic acid?
The CAS number of Rosmarinic acid is 20283-92-5.
What are the molecular formula and molecular weight of Rosmarinic acid?
Rosmarinic acid has molecular formula C18H16O8 and molecular weight 360.315 g/mol.
Is Rosmarinic acid hazardous?
Rosmarinic acid has GHS signal word Danger and hazard statements H301 — Toxic if swallowed; H400 — Very toxic to aquatic life.
What are the upstream and downstream products of Rosmarinic acid?
For Rosmarinic acid, Downstream Products: Caffeic acid, α-Tocopherol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Rosmarinic acid (CAS 20283-92-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-3360-2 (accessed 2026-10-28).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.