Skip to content
Stains & Dyes

Sudan Iv

RA002520 CAS 85-83-6 Microscopy

Identity

Product code
RA002520
CAS number
85-83-6
Grade
Microscopy
Molecular formula
C24H20N4O
Molecular weight
380.45

Classification

Technical Data

Properties

PropertyValueUnit
Physical state at 20 °C Solid —
Colour Dark red powder —
Odour Odorless —
Melting point/ Freezing point [°C] 199 °C °C
Solubility in water [% weight] Insoluble in water —

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

Specifications

ParameterSpecificationUnit
Appearance Dark red powder —
Absorption maxima 519 - 523 nm nm
Absorptivity (A 1%/1cm; at λmax) Min 600 —
Loss on drying (135 °C) Max 3 % %

Packaging

Pack size SKU
10 g RA002520-PK-10G
25 g RA002520-PK-25G
100 g RA002520-PK-100G