Description

Flavin Semiquinone is a key intermediate redox state in the flavin coenzyme system, crucial for numerous biological electron transfer processes. This compound is essential for researchers and manufacturers studying or replicating the catalytic mechanisms of flavoproteins, which are vital in metabolism and bioenergetics. It serves as a critical reference standard and biochemical tool for the pharmaceutical, biotechnology, and life science research industries.

Application

• Biochemical Research: As a reference standard and intermediate for studying flavin-dependent enzyme kinetics, electron transfer mechanisms, and redox biochemistry.
• Pharmaceutical Development: Used in the research and synthesis of novel drug candidates that target flavoprotein enzymes.
• Enzyme Mechanism Studies: Critical for investigating the catalytic cycles of oxidoreductases, dehydrogenases, and monooxygenases.
• Nutraceutical & Cosmetic Science: Research into the role of flavins in cellular energy production and antioxidant systems for advanced product development.
• Diagnostic Reagent Manufacturing: Serves as a key component or precursor in developing diagnostic assays and biosensors.
• Academic Research: A fundamental tool in university and institutional labs for teaching and advanced research in bioinorganic and bioorganic chemistry.

Basic Information

Product Name	Flavin Semiquinone
CAS No.	35919-91-6
Molecular Formula	C17H21N4O9P
Molecular Weight	456.35 g/mol
Synonyms	FMN Semiquinone; Flavin Mononucleotide Semiquinone; Riboflavin 5'-Phosphate Semiquinone; Lumiflavin Semiquinone; 1,5-Dihydroisoalloxazine; 5'-FMNH•; Flavin Radical; Reduced Flavin Mononucleotide (Radical Form)
EINECS	Contact for details

Quality Control

Our Flavin Semiquinone is produced under strict quality management protocols to ensure high purity and batch-to-batch consistency, suitable for sensitive research applications. Each lot is accompanied by a comprehensive Certificate of Analysis (COA) detailing purity, identity, and stability data. We adhere to relevant Good Manufacturing Practice (GMP) principles for laboratory chemicals to support our global clientele in regulated industries.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). This material is light-sensitive (store away from light). For long-term stability, consider storage under an inert atmosphere such as argon or nitrogen to prevent oxidation.

Specification

Item	Specification
Appearance	Yellow to Orange Powder or Crystals
Identification (IR)	Conforms to Reference Spectrum
Purity (HPLC)	≥ 95.0%
UV-Vis Spectrum	Characteristic peaks for semiquinone form
Water Content (KF)	≤ 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.