Description
Phenol red solution is a pharmacopoeia-quality chemical reagent specified as Reag. Ph. Eur., Chapter 4.1.1, reference 1063601, identified by CAS number 143-74-8 and empirical formula C₁₉H₁₄O₅S. The molar mass is 354,38 g/mol and the EG number is 205-609-7. It is supplied as a 100 ml plastic pack for laboratories that work according to European Pharmacopoeia reagent Chapter 4.1.1. Density is given as 0,95 g/cm³, the flash point as 35,5 °C and the boiling point as 78 °C, so the principal physical constants are available for handling, labelling and method documentation. The 100 ml unit quantity has a listed weight of 0,200 kg, a practical volume for pharmacopoeial reagent benches and for laboratories that keep Chapter 4.1.1 reagents in stock. This phenol red solution from manufacturer Carl ROTH belongs to the range of chemicals in pharmacopoeia quality and of reagents and volumetric standard solutions (Ph. Eur.). The product is intended for chemical and pharmaceutical laboratories that specify phenol red solution according to Chapter 4.1.1.
This article is part of Indicators & indicator solutions, in Analytical standards & reference materials.
Key features
- CAS number: 143-74-8
- Pack size: 100 ml plastic
- EG nr.: 205-609-7
- Empirical formula: C₁₉H₁₄O₅S
- Molar mass: 354,38 g/mol
- Technical Information Sheet:
- Safety Data Sheet:
Compliance & Safety Information
WarningHazard Statements (H-Phrases)
Precautionary Statements (P-Phrases)
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Questions about Phenol red solution, Reag. Ph. Eur., 100 ml
What is this article?
Phenol red solution, Reag. Ph. Eur., 100 ml is the article on this page. Luminix Health distributes Carl Roth for laboratory use. It sits in Indicators & indicator solutions, inside Analytical standards & reference materials, in Lab chemicals.
An indicator solution changes colour at a stated point, usually a pH interval or a redox potential, so a titration endpoint can be seen. The solvent and the concentration decide how sharp the change is. A solid indicator dye and a ready solution are different articles.
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.
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The category is Analytical standards & reference materials. The sub-category is Indicators & indicator solutions. 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 Spectroscopy & physical property standards.
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