5'-Deoxy-5-fluorocytidine
Also known as: 5-Fluoro-5'-deoxycytidine, Capecitabine Impurity A, Capecitabine USP Impurity A, Capecitabine Impurity 1, 5'-DFCR, Cytidine, 5'-deoxy-5-fluoro-, 4-Amino-1-[(2R,3R,4S,5R)-3,4-dihydroxy-5-methyltetrahydro-2-furanyl]-5-fluoro-2(1H)-pyrimidinone
5'-Deoxy-5-fluorocytidine (CAS 66335-38-4) is a compound in the Organohalogen Compounds category listed in the Jingsj chemical database. It has the molecular formula C9H12FN3O4 and a molecular weight of 245.21 g/mol. Key properties include a melting point of 196-198ºC, a boiling point of 437.9±55.0 °C at 760 mmHg, a density of 1.8±0.1 g/cm3 and a flash point of 218.6±31.5 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 66335-38-4
- Jingsj CID
- J-1975845-3
- Molecular Formula
- C9H12FN3O4
- Molecular Weight
- 245.21 g/mol
- Category
- Organohalogen Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 196-198ºC |
|---|---|
| Boiling Point | 437.9±55.0 °C at 760 mmHg |
| Density | 1.8±0.1 g/cm3 |
| Flash Point | 218.6±31.5 °C |
| Exact Mass | 245.081177 |
| PSA | 110.60000 |
| LogP | -0.94 |
| Vapor Pressure | 0.0±2.4 mmHg at 25°C |
| Refractive Index | 1.700 |
| Storage Conditions | Hygroscopic, -20°C Freezer, Under Inert Atmosphere |
Activity & Biological Data
| Additional Information | [1]. Gowher H, et al. Mechanism of inhibition of DNA methyltransferases by cytidine analogs in cancer therapy. Cancer Biol Ther. 2004 Nov;3(11):1062-8. |
|---|
Customs & Trade Information
| HS Code | 2934999090 |
|---|---|
| Summary | 2934999090. other heterocyclic compounds. 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 5'-Deoxy-5-fluorocytidine?
The CAS number of 5'-Deoxy-5-fluorocytidine is 66335-38-4.
What are the molecular formula and molecular weight of 5'-Deoxy-5-fluorocytidine?
5'-Deoxy-5-fluorocytidine has molecular formula C9H12FN3O4 and molecular weight 245.21 g/mol.
What are the upstream and downstream products of 5'-Deoxy-5-fluorocytidine?
For 5'-Deoxy-5-fluorocytidine, Upstream Products: Capecitabine, 2',3'-Di-O-acetyl-5'-deoxy-5-fluorocytidine, 5'-Deoxy-5-fluoro-2',3'-O-isopropylidene-D-cytidine; Downstream Products: Capecitabine, 2',3'-Di-O-acetyl-5'-deoxy-5-fluorocytidine.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "5'-Deoxy-5-fluorocytidine (CAS 66335-38-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1975845-3 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.