28803
Fluka

Fluorescein sodium salt

98.5-100.5% (calc. on dry substance)

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Synonym

Acid Yellow 73

Uranine

Molecular Formula

C₂₀H₁₀Na₂O₅

Molecular Weight

376.27

CAS Number

518-47-8

Colour Index Number

45350

Beilstein Registry Number

3833041

MDL number

MFCD00167039

PubChem Substance ID

24857309

EG/EC Number

208-253-0

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Descriptions

Other Notes

This former Riedel-de Haën product is now being offered as Fluka brand. During the transition, you still may receive the Riedel product. The rebranding has no impact on product performance or quality. For further information see www.sigma-aldrich.com/rebranding. Printing link to product rebranding statement.

Properties

assay

98.5-100.5% (calc. on dry substance)

loss

≤10% loss on drying, 105 °C

anion traces

chloride (Cl^-): ≤3500 mg/kg

sulfate (SO₄^2-): ≤1.2%

suitability

complies for TLC

References

Merck

Merck 13,4185

Beilstein

Beil. 19,IV,2904

reference

Corp MSDS 1 (1), 1688:C / FT-IR 2 (3), 4147:C / FT-IR 1 (2), 1010:B / IR-Spectra (3), 1473:B / IR-Spectra (2), 1269:G / RegBook 1 (2), 2793:B / Sax 6, 1426 / Sigma FT-IR 1 (2), 147:A / Stains and Dyes Ref, 375 / Structure Index 1, 444:A:5

Safety

Safety Statements

22-24/25

WGK Germany

RTECS

LM5425000

Related Categories

... Indicators > Adsorption Indicators

... Fluorescent Labels > Fluorescein and Derivatives

MSDS

Certificate of Analysis

More Information