Alginic acid
Also known as: Algin, Alginic acid from brown algae, Landalgine, Kelacid, Norgine, Sazzio, Protanal LF
Alginic acid (CAS 9005-32-7) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C18H26O19 and a molecular weight of 194.139 g/mol. Key properties include a melting point of 300 °C, a boiling point of 495.2±45.0 °C at 760 mmHg, a density of 2.0±0.1 g/cm3 and a flash point of 211.1±22.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 9005-32-7
- Jingsj CID
- J-26539-5
- Molecular Formula
- C18H26O19
- Molecular Weight
- 194.139 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 300 °C |
|---|---|
| Boiling Point | 495.2±45.0 °C at 760 mmHg |
| Density | 2.0±0.1 g/cm3 |
| Flash Point | 211.1±22.2 °C |
| Exact Mass | 194.042648 |
| PSA | 127.45000 |
| LogP | -2.88 |
| Appearance | Powder | White to pale yellow to beige |
| Vapor Pressure | 0.0±2.9 mmHg at 25°C |
| Refractive Index | 1.685 |
| Additional Property | H2O: insoluble, but swells | Insoluble in water. |
Activity & Biological Data
| Additional Information | [1]. Guo X, et al. Structures, properties and application of alginic acid: A review. Int J Biol Macromol. 2020;162:618-628. [2]. Cui J, et al. Alginic acid induces oxidative stress-mediated hormone secretion disorder, apoptosis and autophagy in mouse granulosa cells and ovaries. Toxicology. 2022;467:153099. [3]. Jeong HJ, et al. Alginic acid has anti-anaphylactic effects and inhibits inflammatory cytokine expression via suppression of nuclear factor-kappaB activation. Clin Exp Allergy. 2006;36(6):785-794. |
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Frequently Asked Questions
What is the CAS number of Alginic acid?
The CAS number of Alginic acid is 9005-32-7.
What are the molecular formula and molecular weight of Alginic acid?
Alginic acid has molecular formula C18H26O19 and molecular weight 194.139 g/mol.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Alginic acid (CAS 9005-32-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-26539-5 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.