Tannic acid
Also known as: Gallotannin, Gallotannic acid, Tannin, Glycerite, Quercus spp. tannin, Chinese tannin
Tannic acid (CAS 1401-55-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C76H52O46 and a molecular weight of 1701.198 g/mol. Key properties include a melting point of 218 °C(lit.), a density of 2.1±0.1 g/cm3 and a flash point of 198°C. GHS hazard statements: H412 — Harmful to aquatic life with long lasting effects. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 1401-55-4
- Jingsj CID
- J-11499-4
- Molecular Formula
- C76H52O46
- Molecular Weight
- 1701.198 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 218 °C(lit.) |
|---|---|
| Density | 2.1±0.1 g/cm3 |
| Flash Point | 198°C |
| Exact Mass | 1700.172974 |
| PSA | 777.98000 |
| LogP | 13.33 |
| Refractive Index | 1.927 |
| Additional Property | 250 g/L (20 ºC) |
GHS Safety & Compliance
- H412 — Harmful to aquatic life with long lasting effects
Activity & Biological Data
| Target | IC50: 3.4 μM (hERG channel)[1] |
|---|---|
| Additional Information | [1]. Xi Chu, et al. Effects of Tannic Acid, Green Tea and Red Wine on hERG Channels Expressed in HEK293 Cells. PLoS One. 2015; 10(12): e0143797. [2]. Karuppagounder V, et al. Tannic acid modulates NFκB signaling pathway and skin inflammation in NC/Nga mice through PPARγ expression. Cytokine. 2015 Dec;76(2):206-13. |
Customs & Trade Information
| HS Code | 3201909000 |
|---|
Frequently Asked Questions
What is the CAS number of Tannic acid?
The CAS number of Tannic acid is 1401-55-4.
What are the molecular formula and molecular weight of Tannic acid?
Tannic acid has molecular formula C76H52O46 and molecular weight 1701.198 g/mol.
Is Tannic acid hazardous?
Tannic acid has GHS hazard statements H412 — Harmful to aquatic life with long lasting effects.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Tannic acid (CAS 1401-55-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-11499-4 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.