Reference standard of Fluorescein (CAS 2321-07-5) for the analysis of dyes: neat, with a certificate of analysis for every lot.

Dyes

ISO 17034 Reference Material

Fluorescein

Synonyms: 3',6'-dihydroxyspiro[2-benzofuran-3,9'-xanthene]-1-one, Solvent Yellow 94, Resorcinolphthalein, D&C Yellow No. 7, Japan Yellow 201, C.I. Solvent Yellow 94, Soap Yellow F, Fluoreszein, Japan Yellow No. 201, Zlut kysela 73, NSC 667256, NSC 759114, Spiro(isobenzofuran-1(3H),9'-(9H)xanthen)-3-one, 3',6'-dihydroxy-, Ful Glo, Fluor I Strip A.T, Fluoran, 3',6'-dihydroxy-, Benzoic acid, 2-(6-hydroxy-3-oxo-3H-xanthen-9-yl)-, Pharmakon1600-01505396, Benzoic acid, o-(6-hydroxy-3-oxo-3H-xanthen-9-yl)-, Diofluor, Diresorcinolphthalein

Cat. No.: A-C0118-50MG
CAS: 2321-07-5
Alternative CAS: N/A
Formula: C₂₀H₁₂O₅
Molecular weight: 332.31 g/mol
Category: Dyes
Class: Dye
Quality: ISO 17034
Also as a pharmaceutical analytical standard: P-F088-001

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Form

Neat pure substanceThe pure substance, with the purity stated on the certificate of analysis. In solution ready to useCertified concentration, in a sealed ampoule.

Quantity

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We reply within 24 hours with a quote and availability. CoA and SDS with every lot.

Available formats

Code	Form	Format
Neat
A-C0118-50MG	Neat	50 mg
A-C0118-100MG	Neat	100 mg
A-C0118-250MG	Neat	250 mg
A-C0118-500MG	Neat	500 mg

Also as a pharmaceutical analytical standard

The same compound is among our pharmaceutical analytical standards, with mass balance and, for small molecules, qNMR characterisation levels.

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What you receive

The analytical standard

Shipped under controlled temperature when the molecule requires it.

Certificate of analysis (CoA)

For every lot: identity, purity and assay, with the supporting spectra and chromatograms.

Safety data sheet (SDS)

Sent with every order.

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Frequently asked questions

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