Description
Titan yellow (C.I. 19540) is an extra pure indicator dye with CAS number 1829-00-1, EG number 217-377-4, and empirical formula C₂₈H₁₉Na₂N₅O₆S₄. The molar mass is 695,73 g/mol, providing a solid basis for preparing indicator solutions and analytical reagents. Extra pure quality from manufacturer Carl ROTH supports applications where consistent dye performance and low extraneous content are important for visual or photometric end-point detection. Titan yellow is established in analytical chemistry for indicator and complexometric contexts that rely on its characteristic colour response. Clear Colour Index designation, CAS, EG number, and formula data assist method documentation, purchasing specifications, and safety classification. Suitable for analytical and teaching laboratories that maintain a defined set of indicator dyes for titration and related procedures.
This article is part of Spectroscopy & physical property standards, in Analytical standards & reference materials.
Key features
- Appearance: rust colored powder
- Solubility: clear, complete
- pH-transition range: 11,0 (yellow)-13,0 (red)
- Loss on drying: ≤10 %
- CAS number: 1829-00-1
- Pack sizes: 5 g, 25 g, 100 g
- EG nr.: 217-377-4
- Empirical formula: C₂₈H₁₉Na₂N₅O₆S₄
- Molar mass: 695,73 g/mol
- Technical Information Sheet:
- Safety Data Sheet:
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Questions about Titan yellow (C.I. 19540), extra pure, 5 g, glass
What is this article?
Titan yellow (C.I. 19540), extra pure, 5 g, glass is the article on this page. Luminix Health distributes Carl Roth for laboratory use. It sits in Spectroscopy & physical property standards, inside Analytical standards & reference materials, in Lab chemicals.
These standards check a physical or optical measurement: a refractive-index liquid, a wavelength standard, a viscosity oil, a melting-point substance. The stated value and its uncertainty are the product. They are not general reagents.
A reference material is the article against which another result is compared. Its value is stated, and the uncertainty of that value is part of the product. An ICP or ion standard is a solution of known concentration. A volumetric standard is for titration. A chromatography standard is the peak you match. The grade names, including pharmacopoeia and ASTM, say which impurities were limited. Identity is checked on PubChem. Names follow IUPAC. Medicinal grades follow the European Pharmacopoeia and USP.
Which category should I open next?
The category is Analytical standards & reference materials. The sub-category is Spectroscopy & physical property standards. The catalogue is Lab chemicals.
Shelves beside this one are ICP, AAS & ion standards, Chromatography standards (GC, HPLC, pesticides), Reference substances & reagents (other), Volumetric standard solutions (titration), Reagents for analysis (Ph. Eur., ASTM, DIN) and Indicators & indicator solutions.
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.
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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.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.