Description
C.I. Solvent Orange 3 is an azo dye intermediate supplied at a minimum purity of 95 % for laboratory and research applications. It is registered under CAS number 495-54-5 with empirical formula C₁₂H₁₂N₄ and a molar mass of 212,25 g/mol. The compound is used in dye chemistry, staining protocols, and studies requiring a defined solvent orange colourant of known composition. size provides a practical quantity for formulation trials, analytical reference work, and small-batch synthesis or quality-control experiments. The relatively low molecular weight simplifies molar calculations when preparing stock solutions or comparing colour strength across batches. Researchers in organic synthesis, materials colouration, and analytical method development can incorporate this grade where a min. 95 % assay is specified. UN number 3077 applies for transport classification of the substance. Available from manufacturer Carl ROTH in the biochemicals and chemicals range, C.I. Solvent Orange 3 supports reproducible laboratory workflows that depend on clearly documented dye identity and purity.
This article belongs on Dyes & pigments, in Dyes, stains & indicators.
Key features
Compliance & Safety Information
Warning
Hazard Statements (H-Phrases)
Recently viewed
You may also like
Browse related categories
Category
Sub-category
Catalogue
Brand
Questions about C.I.Solvent Orange 3, min. 95 %, 25 g
What is this article?
C.I.Solvent Orange 3, min. 95 %, 25 g is the article on this page. Luminix Health distributes Carl Roth for laboratory use. It sits in Dyes & pigments, inside Dyes, stains & indicators, in Lab chemicals.
A dye dissolves. A pigment is a particle dispersed in a medium. On this shelf they are the colouring substances used as reagents or as markers, specified by Colour Index name or by structure where it is known. The same common name can hide two constitutions.
A dye or a stain binds, or changes colour, so that something invisible becomes visible. An indicator changes at a pH or a redox point. A fluorescent dye absorbs one wavelength and emits another, which is how a microscope or a plate reader picks it out. The excitation and emission, or the transition interval, are the specification. The colour name on the label is not. Structures are on PubChem under IUPAC names. Methods are in the PubMed literature.
Which category should I open next?
The category is Dyes, stains & indicators. The sub-category is Dyes & pigments. The catalogue is Lab chemicals.
Shelves beside this one are Fluorescent dyes & labels and Microscopy stains & staining solutions.
What should I check before I order?
When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
How does ordering and shipping work?
Luminix Health distributes this article from the heart of Europe. Articles in stock ship within 2–5 business days. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
Which other categories should I open?
The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.

