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Organic Chemicals

Fluorescein

RA001448 CAS 2321-07-5

Identity

Product code
RA001448
CAS number
2321-07-5
Purity
95%
Molecular formula
C20H12O5
Molecular weight
332.31

Classification

Technical Data

Properties

PropertyValueUnit
Physical state at 20 °C Solid —
Colour Orange red powder —
Odour Odorless —
Melting point/ Freezing point [°C] 320 °C °C

These are recorded catalogue property values. Product specification limits, where available, are listed under Specifications.

Specifications

ParameterSpecificationUnit Method
Appearance Orange red brown or maroon powder — —
Assay Min 95 % % HPLC
Solubility (in 1N NaOH) 50 mg/mL mg/mL —
Molar absorptivity E(490+/-2nm) Min 70000 — —
Molar absorptivity E(284+/-2nm) Min 12000 — —
Molar absorptivity E(238+/-2nm) Min 39000 — —
Loss on drying (105 °C) Max 5.0 % % —

Packaging

Pack size SKU
25 g RA001448-PK-25G
100 g RA001448-PK-100G
1 kg RA001448-PK-1KG