Quinaldine Red, dye content, 95%
Quinaldine Red, dye content, 95%
Quinaldine Red, dye content, 95%
Quinaldine Red, dye content, 95%
Thermo Scientific Chemicals

Quinaldine Red, dye content, 95%

CAS: 117-92-0 | C21H23IN2 | 430.33 g/mol
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5 g
25 g
Catalog number H55729.06
also known as H55729-06
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Quantity:
5 g
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Chemical Identifiers
CAS117-92-0
IUPAC Name2-{2-[4-(dimethylamino)phenyl]ethenyl}-1-ethylquinolin-1-ium iodide
Molecular FormulaC21H23IN2
InChI KeyJOLANDVPGMEGLK-UHFFFAOYSA-M
SMILES[I-].CC[N+]1=C2C=CC=CC2=CC=C1C=CC1=CC=C(C=C1)N(C)C
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SpecificationsSpecification SheetSpecification Sheet
Color ChangeFrom pH 1.4 (colorless) to pH 3.2 (red)
Assay from Supplier's CofADye content: ≥94.0%
Infrared spectrumConforms
Quinaldine Red is a colorimetric phosphate detection reagent which is known to be a cationic fluorescent probe for proteins. It is also a pH indicator with a transition interval from 1.4 - 3.2 (colorless - rose).

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Applications
Quinaldine Red is a colorimetric phosphate detection reagent which is known to be a cationic fluorescent probe for proteins. It is also a pH indicator with a transition interval from 1.4 - 3.2 (colorless - rose).

Solubility
Partly soluble in water, alcohol, and ethanol.

Notes
Store at room temperature. Avoid strong oxidizing agents.
RUO – Research Use Only

General References:

  1. Elizabeth B. Cogan.; G.Bruce Birrell.; O.Hayes Griffith. A Robotics-Based Automated Assay for Inorganic and Organic Phosphates. Anal. Biochem. 1999, 271 (1), 29-35.
  2. Hitoshi Imamura.; Toru Maruyama.; Hiroaki Okabe.; Hidekata Shimada.; Masaki Otagiri. A Simple and Rapid Fluorometric Determination Method of α1-Acid Glycoprotein in Serum Using Quinaldine Red.Pharm. Res.1994, 11 (4),566-570.