Description

Glycine Cresol Red is a high-purity biochemical indicator and dye, widely recognized for its precise colorimetric properties. This compound is essential for applications requiring accurate pH determination and endpoint detection in analytical and diagnostic procedures. It is a critical reagent for research laboratories, diagnostic kit manufacturers, and quality control departments in the pharmaceutical and biotechnology industries.

Application

• As a pH indicator in microbiological culture media and biochemical assays.
• A key component in diagnostic kits for clinical chemistry and urinalysis.
• Used as a visual endpoint indicator in titration and complexometric analysis.
• Employed in research-grade buffers and solutions for cell culture and molecular biology.
• As a staining agent in specific histological and cytological procedures.
• For quality control testing in the pharmaceutical and fine chemical manufacturing processes.

Basic Information

Product Name	Glycine Cresol Red
CAS No.	77031-64-2
Molecular Formula	C21H16O5S
Molecular Weight	380.41 g/mol
Synonyms	o-Cresolsulfonephthalein-3,3'-bis(methyliminodiacetic acid); Cresol Red glycine complex; Glycine complex of Cresol Red; 3',3''-Bis[N,N-bis(carboxymethyl)aminomethyl]cresolsulfonephthalein; Cresol Red Glycine Salt; Diagnostic Grade Cresol Red
EINECS	Contact for details

Quality Control

Our Glycine Cresol Red is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and spectrophotometric verification of performance characteristics, to ensure it meets the stringent requirements for diagnostic and research use. Certificates of Analysis (COA) detailing all specifications are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). Keep the container tightly sealed to protect from moisture.

Specification

Item	Specification
Appearance	Dark red to brownish-red powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
pH Transition Range	7.2 (yellow) to 8.8 (red)
Loss on Drying	≤ 2.0 %
Residue on Ignition	≤ 0.5 %

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