Description
Rhodamine B (C.I. 45170) is a microscopy dye with CAS number 81-88-9 and empirical formula C₂₈H₃₁ClN₂O₃. The compound has a molar mass of 479,02 g/mol and a density of 1,31 g/cm³, and is identified under EG nr. 201-383-9. Physical data from the manufacturer description support straightforward handling and formulation planning when preparing staining or spotting solutions. Rhodamine B from manufacturer Carl ROTH is positioned for applications where a defined colourant is needed for chromatographic detection or microscopic contrast. Laboratories can integrate this dye into established TLC dyeing protocols and general microscopy staining routines without altering the stated identity or pack presentation. The glass unit quantity keeps the solid reagent ready for weighing and solution preparation in analytical and teaching environments that rely on classic xanthene-type dyes for colour development and sample visualisation.
This article is part of TLC.
Key features
- Appearance: greenish powder or crystals
- Maximum absorption: 540-560 nm
- Loss on drying (105 °C, 1 h): ≤5.0 %
- Solubility: soluble in water, ethanol and 2-Methoxyethanol
- CAS number: 81-88-9
- Pack sizes: 25 g, 50 g
- EG nr.: 201-383-9
- Molar mass: 479,02 g/mol
- Density: 1,31 g/cm³
- Technical Information Sheet:
- Safety Data Sheet:
Compliance & Safety Information
Danger
Hazard Statements (H-Phrases)
Precautionary Statements (P-Phrases)
Recently viewed
You may also like
Questions about Rhodamine B (C.I. 45170), for microscopy, 25 g, glass
What is this article?
Rhodamine B (C.I. 45170), for microscopy, 25 g, glass is the article on this page. Luminix Health distributes Carl Roth for laboratory use. It sits in TLC, in Chromatography equipment.
Thin-layer chromatography runs a liquid up a plate coated with a sorbent. The compounds move different distances and are seen as spots. HPTLC is the same method with a finer layer. The plate, the solvent mixture and the chamber saturation decide the result. It is the quick look before, or beside, a column method. The substances are on PubChem, named by IUPAC.
Which category should I open next?
The category is TLC. The catalogue is Chromatography equipment.
Shelves beside this one are TLC & HPTLC plates and TLC chambers & accessories.
What should I check before I order?
The technical information on this page is the manufacturer's sheet. Read that, not a rewritten specification.
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.