Fluorescin
二氢荧光素
Also known as: 2-(3,6-dihydroxy-9H-xanthen-9-yl)benzoic acid, Benzoic acid, 2-(3,6-dihydroxy-9H-xanthen-9-yl)-, Fluorescin [Reagent for Oxydases and Peroxydases], Resorcinolphthalin, dihydrofluorescein
Fluorescin (CAS 518-44-5) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C20H14O5 and a molecular weight of 334.32200 g/mol. It is also known as 2-(3,6-dihydroxy-9H-xanthen-9-yl)benzoic acid, Benzoic acid, 2-(3,6-dihydroxy-9H-xanthen-9-yl)- and Fluorescin [Reagent for Oxydases and Peroxydases]. Key properties include a melting point of 127 °C, a boiling point of 549.8ºC at 760 mmHg, a density of 1.449g/cm3 and a flash point of 201.9ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 518-44-5
- Jingsj CID
- J-1335635-6
- Molecular Formula
- C20H14O5
- Chinese Name
- 二氢荧光素
- Molecular Weight
- 334.32200 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 127 °C |
|---|---|
| Boiling Point | 549.8ºC at 760 mmHg |
| Density | 1.449g/cm3 |
| Flash Point | 201.9ºC |
Frequently Asked Questions
What is the CAS number of Fluorescin?
The CAS number of Fluorescin is 518-44-5.
What are the molecular formula and molecular weight of Fluorescin?
Fluorescin has molecular formula C20H14O5 and molecular weight 334.32200 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Fluorescin (CAS 518-44-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1335635-6 (accessed 2026-10-25).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.