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Screening compounds

Flurescein-NHS ester

Also known as 4-(((2,5-Dioxopyrrolidin-1-yl)oxy)carbonyl)-2-(6-hydroxy-3-oxo-3H-xanthen-9-yl)benzoic acid, FAM NHS ester,6-isomer, 1,4-Benzenedicarboxylic acid, 2-(6-hydroxy-3-oxo-3H-xanthen-9-yl)-, 4-(2,5-dioxo-1-pyrrolidinyl) ester

CAS 890090-41-2Formula C25H15NO9Molar mass 473.39 g/mol
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Flurescein-NHS ester chemical structure, C25H15NO9, CAS 890090-41-2
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
890090-41-2
Formula
C25H15NO9
Molar mass
473.39 g/mol
HS code
293299
Category
Screening compounds

What is Flurescein-NHS ester?

Plain description, key identifiers and synonyms

Flurescein-NHS ester is a chemical substance with the molecular formula C25H15NO9 and a molar mass of 473.39 g/mol. Its CAS registry number is 890090-41-2. The IUPAC name is 4-(2,5-dioxopyrrolidin-1-yl)oxycarbonyl-2-(3-hydroxy-6-oxoxanthen-9-yl)benzoic acid.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
4-(2,5-dioxopyrrolidin-1-yl)oxycarbonyl-2-(3-hydroxy-6-oxoxanthen-9-yl)benzoic acid
CAS number
890090-41-2
Molecular formula
C25H15NO9
InChIKey
LXFOCXWFKJWFEP-UHFFFAOYSA-N
InChI
InChI=1S/C25H15NO9/c27-13-2-5-16-19(10-13)34-20-11-14(28)3-6-17(20)23(16)18-9-12(1-4-15(18)24(31)32)25(33)35-26-21(29)7-8-22(26)30/h1-6,9-11,27H,7-8H2,(H,31,32)
SMILES (canonical and isomeric)
C1CC(=O)N(C1=O)OC(=O)C2=CC(=C(C=C2)C(=O)O)C3=C4C=CC(=O)C=C4OC5=C3C=CC(=C5)O

Synonyms

  • 4-(((2,5-Dioxopyrrolidin-1-yl)oxy)carbonyl)-2-(6-hydroxy-3-oxo-3H-xanthen-9-yl)benzoic acid
  • FAM NHS ester,6-isomer
  • 1,4-Benzenedicarboxylic acid, 2-(6-hydroxy-3-oxo-3H-xanthen-9-yl)-, 4-(2,5-dioxo-1-pyrrolidinyl) ester
  • 4-(((2,5-Dioxopyrrolidin-1-yl)oxy)carbonyl)-2-(6-hydroxy-3-oxo-3H-xanthen-9-yl)benzoicacid

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
473.39 g/molcalc.
Exact mass
473.0747 Dacalc.
LogP (octanol/water)
3.19calc.
Topological polar surface area
151.4 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
8calc.
Rotatable bonds
4calc.
Heavy atoms
35calc.
Rings
5calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0.08calc.
Formal charge
0calc.
Stereocentres
0calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, O=C(ON1C(=O)CCC1=O)c1cccc(-c2c3ccc(=O)cc-3oc3ccccc23)c1

O=C(ON1C(=O)CCC1=O)c1cccc(-c2c3ccc(=O)cc-3oc3ccccc23)c1

5 rings, 31 atoms.

3 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

No GHS hazard classification is recorded for this substance yet. That does not mean it is harmless.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Flurescein-NHS ester suppliers

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Flurescein-NHS ester price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Regulatory status

Inventories, regulations and trade controls that list this substance

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Flurescein-NHS ester is traded under.

HS 2932.99Indicative HS code

Heterocyclic compounds with oxygen hetero-atom(s) only, other

World exports in 2024
$3.81B
+10.3% vs 2023, imports $7.05B
2019 to 2024
Top exporters
  1. China28.9%
  2. Switzerland * partner reported12.7%
  3. Germany7.8%
Top importers
  1. United States49.7%
  2. China11.9%
  3. India * partner reported3.3%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for Flurescein-NHS ester is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Flurescein-NHS ester, based on the data on this page

What is Flurescein-NHS ester?

Flurescein-NHS ester is a chemical substance with the molecular formula C25H15NO9 and a molar mass of 473.39 g/mol. Its CAS registry number is 890090-41-2. The IUPAC name is 4-(2,5-dioxopyrrolidin-1-yl)oxycarbonyl-2-(3-hydroxy-6-oxoxanthen-9-yl)benzoic acid.

What is the CAS number of Flurescein-NHS ester?

The CAS registry number of Flurescein-NHS ester is 890090-41-2.

What is the molecular formula and weight of Flurescein-NHS ester?

The molecular formula of Flurescein-NHS ester is C25H15NO9 and its molar mass is 473.39 g/mol.

What is Flurescein-NHS ester used for?

Known uses and roles of Flurescein-NHS ester include building blocks in research and laboratory and screening compounds in research and laboratory.

Is Flurescein-NHS ester hazardous?

No GHS hazard classification for Flurescein-NHS ester is recorded on CompoundList yet. That does not prove it is safe. Always read the supplier safety data sheet.

What is the HS code of Flurescein-NHS ester?

Flurescein-NHS ester is usually classified under HS code 293299 (Heterocyclic compounds with oxygen hetero-atom(s) only, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Flurescein-NHS ester?

Post a free request on CompoundList and suppliers of Flurescein-NHS ester will send you quotes. Your contact details stay private until you accept a quote.

What is the price of Flurescein-NHS ester?

Suppliers quote Flurescein-NHS ester on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle Flurescein-NHS ester

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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