Rifamycin O
利福霉素-O
Also known as: Rifomycin O, Rifaximin EP Impurity F, Rifaximin impurity F (EP), NSC 182391, ctone, 4-O-(Carboxymethyl)-1-deoxy-1,4-dihydro-4-hydroxy-1-oxorifamycin γ-lactone, Spiro[1,3-dioxolane-2,9'(6'H)-[2,7](epoxypentadeca[1,11,13]trienimino)naphtho[2,1-b]furan]-1',4,6',11'(2'H)-tetrone,5',17',19',21'-tetrahydroxy-23'-methoxy-2',4',12',16',18',20',22'-heptamethyl-,21'-acetate
Rifamycin O (CAS 14487-05-9) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C39H47NO14 and a molecular weight of 767.815 g/mol. It is also known as Rifomycin O, Rifaximin EP Impurity F and Rifaximin impurity F (EP). Key properties include a melting point of 171ºC (dec.), a boiling point of 972.8±65.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 542.2±34.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 14487-05-9
- Jingsj CID
- J-1341122-4
- Molecular Formula
- C39H47NO14
- Chinese Name
- 利福霉素-O
- Molecular Weight
- 767.815 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 171ºC (dec.) |
|---|---|
| Boiling Point | 972.8±65.0 °C at 760 mmHg |
| Density | 1.4±0.1 g/cm3 |
| Flash Point | 542.2±34.3 °C |
Frequently Asked Questions
What is the CAS number of Rifamycin O?
The CAS number of Rifamycin O is 14487-05-9.
What are the molecular formula and molecular weight of Rifamycin O?
Rifamycin O has molecular formula C39H47NO14 and molecular weight 767.815 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Rifamycin O (CAS 14487-05-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1341122-4 (accessed 2026-10-25).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.