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m-Cresol purple

Name: m-Cresol purple
Brand: MM

pH indicator

别名:

m-Cresol purple, m-Cresolsulfonphthalein, 2′,2′′-Dimethylphenolsulfonphthalein, MCP

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关于此项目

经验公式（希尔记法）:

C₂₁H₁₈O₅S

化学文摘社编号:

2303-01-7

分子量:

382.43

UNSPSC Code:

12171502

EC Index Number:

218-960-6

NACRES:

NB.21

MDL number:

MFCD00005871

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属性

产品名称

m-Cresol purple, indicator

Quality Level

200

loss

≤1% loss on drying, 110°C

color

dark red to olive green

visual transition interval

1.2-2.8, pink to yellow(1st transition range), 7.4-9.0, brownish-yellow to violet(2nd transition range)

bulk density

480 kg/m³

storage temp.

2-30°C

SMILES string

[S]1(=O)(=O)OC(c4c1cccc4)(c3c(cc(cc3)O)C)c2c(cc(cc2)O)C

InChI

1S/C21H18O5S/c1-13-11-15(22)7-9-17(13)21(18-10-8-16(23)12-14(18)2)19-5-3-4-6-20(19)27(24,25)26-21/h3-12,22-23H,1-2H3

InChI key

OLQIKGSZDTXODA-UHFFFAOYSA-N

说明

Application

Spectrophotometric calibration of pH electrodes in seawater using purified m-Cresol purple: This study demonstrates the refinement of m-Cresol purple for enhanced spectrophotometric calibration of pH sensors in marine environments, focusing on improving measurement accuracy and reliability, which is crucial for oceanographic research and environmental monitoring (Easley & Byrne, 2012).

Detection of impurities in m-Cresol purple with Soft Independent Modeling of Class Analogy for the quality control of spectrophotometric pH measurements in seawater: This paper explores the application of advanced data analysis techniques to identify impurities in m-Cresol purple, ensuring the integrity of pH measurements critical for environmental and marine sciences (Fong et al., 2024).

A high-precision and wide-range pH monitoring system based on broadband cavity-enhanced absorption spectrum: Incorporating m-Cresol purple, this research develops a sophisticated system for precise and extensive pH monitoring, applicable in environmental science and engineering to ensure accurate ecological assessments (Yang et al., 2024).

Applying m-Cresol purple in acid-base titration research within material science studies: The article elaborates on the use of m-Cresol purple in titration procedures to analyze material properties, which is pivotal for research in material science and engineering, aiding in the development of new materials and composites (Magnaghi et al., 2020).

Development of a Dye-Based Device to Assess the Poultry Meat Spoilage: This study utilizes m-Cresol purple in a colorimetric sensor array to assess the spoilage of poultry meat, offering a practical solution for quality control in food safety and processing industries (Magnaghi et al., 2020).

Analysis Note

Appearance (color): dark red to olive green
1st transition range: pH 1.2 - pH 2.8pink - yellow
2nd transition range: pH 7.4 - pH 9.0brownish yellow - violet
Appearance of solution: conforms
Loss on drying (110 °C): ≤ 1

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存储类别

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c