Description

Ci 13015 CAS NO 547-57-9 is a high-purity chemical compound, specifically identified as Methyl Red sodium salt, widely recognized as a pH indicator. Its consistent quality and reliable performance make it an essential reagent for precise analytical and research applications. This product is primarily utilized by laboratories and industrial facilities in the chemical, pharmaceutical, and educational sectors for titration, microbiological media preparation, and as a biological stain.

Application

• pH Indicator in Titrations: Used for visual endpoint detection in acid-base titrations within specific pH ranges.
• Microbiological Culture Media: A key component in selective media, such as Methyl Red-Voges Proskauer (MR-VP) broth, for bacterial identification and differentiation.
• Biological Staining: Employed in histology and cytology for staining tissues and cellular structures.
• Laboratory Reagent: Serves as a standard reagent in analytical chemistry for various colorimetric assays and educational demonstrations.
• Industrial Process Control: Applied in monitoring pH changes in specific manufacturing or wastewater treatment processes.

Basic Information

Product Name	Ci 13015
CAS No.	547-57-9
Molecular Formula	C15H14N3NaO2
Molecular Weight	291.28 g/mol
Synonyms	Methyl Red sodium salt; Acid Red 2 sodium salt; C.I. 13015; 2-[4-(Dimethylamino)phenylazo]benzoic acid sodium salt; Sodium 2-[4-(dimethylamino)phenylazo]benzoate; MR-VP indicator; Methyl Red, water soluble
EINECS	208-925-2

Quality Control

Our Ci 13015 is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure it meets high-purity standards suitable for laboratory and diagnostic use. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to guarantee traceability and batch-to-batch consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); ensure the container is kept tightly sealed after each use to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Reddish-brown to dark red powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
pH (1% solution)	6.5 - 8.5
Solubility (Water)	Clear, red solution
Heavy Metals (as Pb)	≤ 20 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.