5(6)-Carboxyfluorescein
5(6)-羧基荧光素
Also known as: 5(6)-Carboxyfluorescein, mixture of isomers, 5-(and-6)-Carboxyfluorescein, 5(6)-FAM, 3',6'-dihydroxy-3-oxospiro[isobenzofuran-1(3H),9'-[9H]xanthene]-ar-carboxylic acid, 4(5)-CARBOXYFLUORESCEIN, Fluoresceincarboxylic Acid, MFCD00151081
5(6)-Carboxyfluorescein (CAS 72088-94-9) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C21H12O7 and a molecular weight of 376.32 g/mol. It is also known as 5(6)-Carboxyfluorescein, mixture of isomers, 5-(and-6)-Carboxyfluorescein and 5(6)-FAM. Key property: a melting point of 275 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 72088-94-9
- Jingsj CID
- J-1347757-4
- Molecular Formula
- C21H12O7
- Chinese Name
- 5(6)-羧基荧光素
- Molecular Weight
- 376.32 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 275 °C |
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| PSA | 226.58000 |
| LogP | 6.72800 |
Activity & Biological Data
| Additional Information | [1]. Babcock DF. Examination of the intracellular ionic environment and of ionophore action by null point measurements employing the fluorescein chromophore. J Biol Chem. 1983 May 25;258(10):6380-9. [2]. Bonizzoni M, et al. PAMAM dendrimer-induced aggregation of 5(6)-carboxyfluorescein. J Org Chem. 2012 Feb 3;77(3):1258-66. |
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Customs & Trade Information
| HS Code | 29335995 |
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Frequently Asked Questions
What is the CAS number of 5(6)-Carboxyfluorescein?
The CAS number of 5(6)-Carboxyfluorescein is 72088-94-9.
What are the molecular formula and molecular weight of 5(6)-Carboxyfluorescein?
5(6)-Carboxyfluorescein has molecular formula C21H12O7 and molecular weight 376.32 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "5(6)-Carboxyfluorescein (CAS 72088-94-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1347757-4 (accessed 2026-10-28).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.