6-Aminofluorescein

6-氨基荧光素

Also known as: Fluoresceinamine isomer II, 6-Amino-3',6'-dihydroxyspiro[isobenzofuran-1(3H),9'-(9H)xanthen]-3-one, Spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one, 6-amino-3',6'-dihydroxy-, Fluoresceinamine, isomer II

6-Aminofluorescein (CAS 51649-83-3) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C20H13NO5 and a molecular weight of 347.321 g/mol. It is also known as Fluoresceinamine isomer II, 6-Amino-3',6'-dihydroxyspiro[isobenzofuran-1(3H),9'-(9H)xanthen]-3-one and Spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one, 6-amino-3',6'-dihydroxy-. Key properties include a melting point of 285 °C (dec.)(lit.), a boiling point of 706.7±60.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 381.2±32.9 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
51649-83-3
Jingsj CID
J-32488-5
Molecular Formula
C20H13NO5
Chinese Name
6-氨基荧光素
Molecular Weight
347.321 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Melting Point285 °C (dec.)(lit.)
Boiling Point706.7±60.0 °C at 760 mmHg
Density1.6±0.1 g/cm3
Flash Point381.2±32.9 °C

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of 6-Aminofluorescein?

The CAS number of 6-Aminofluorescein is 51649-83-3.

What are the molecular formula and molecular weight of 6-Aminofluorescein?

6-Aminofluorescein has molecular formula C20H13NO5 and molecular weight 347.321 g/mol.

Is 6-Aminofluorescein hazardous?

6-Aminofluorescein has GHS signal word Warning.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "6-Aminofluorescein (CAS 51649-83-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-32488-5 (accessed 2026-10-22).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.