Ophiobolin A
蛇孢菌素A
Also known as: Cochliobolin A, Ophiobolin, Cochliobolin, (+)-Ophiobolin A, Ophiobolin A from Helminthosporium sp., OPHIOBOLIN A
Ophiobolin A (CAS 4611-05-6) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C25H36O4 and a molecular weight of 400.551 g/mol. It is also known as Cochliobolin A, Ophiobolin and Cochliobolin. Key properties include a boiling point of 539.4±50.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 177.8±23.6 °C. It is classified under GHS with signal word Danger and hazard statements H301 — Toxic if swallowed, H312 — Harmful in contact with skin and H332 — Harmful if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 4611-05-6
- Jingsj CID
- J-15970-2
- Molecular Formula
- C25H36O4
- Chinese Name
- 蛇孢菌素A
- Molecular Weight
- 400.551 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 539.4±50.0 °C at 760 mmHg |
|---|---|
| Density | 1.1±0.1 g/cm3 |
| Flash Point | 177.8±23.6 °C |
| Exact Mass | 400.261353 |
| PSA | 63.60000 |
| LogP | 3.75 |
| Vapor Pressure | 0.0±3.3 mmHg at 25°C |
| Refractive Index | 1.554 |
GHS Safety & Compliance
- H301 — Toxic if swallowed
- H312 — Harmful in contact with skin
- H332 — Harmful if inhaled
Activity & Biological Data
| Target | IC50: 9 μM (calmodulin-activated cyclic nucleotide phosphodiesterase)[1]. |
|---|---|
| Additional Information | [1]. Leung PC, et al. Ophiobolin A. A natural product inhibitor of calmodulin. J Biol Chem. 1984 Mar 10;259(5):2742-7 |
Frequently Asked Questions
What is the CAS number of Ophiobolin A?
The CAS number of Ophiobolin A is 4611-05-6.
What are the molecular formula and molecular weight of Ophiobolin A?
Ophiobolin A has molecular formula C25H36O4 and molecular weight 400.551 g/mol.
Is Ophiobolin A hazardous?
Ophiobolin A has GHS signal word Danger and hazard statements H301 — Toxic if swallowed; H312 — Harmful in contact with skin; H332 — Harmful if inhaled.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Ophiobolin A (CAS 4611-05-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-15970-2 (accessed 2026-10-28).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.