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F-0202

F-0202

CHF 0.00

Monocarboxymethylene Blue (MCMB)

Non-activated methylene blue redox marker for electro-active labeling, designed especially for labeling of biomolecules.

SKU: F-0202-D005.0-001 Categories: , , ,

Description

Monocarboxymethylene Blue (MCMB): Non-Activated Redox Label for Electrochemical and Photosensitizer Applications

Monocarboxymethylene Blue (MCMB) is a non-activated methylene blue derivative used for covalent labeling of proteins and alkylamino-modified nucleic acids. With a single carboxylic acid functional group, MCMB combines strong absorption properties with excellent redox activity and singlet oxygen generation capabilities, making it an ideal choice for both electrochemical biosensor development and photosensitizer-based assays.

Performance Highlights

  • Single carboxylic acid group for covalent attachment

  • Validated redox properties with Ef = –0.198 V vs. Ag/AgCl (1 M KCl)

  • Effective singlet oxygen generator

  • Suitable for electrochemical and photochemical labeling

Properties

  • Molecular Weight: 441.9

  • Empirical Formula: C₁₈H₂₁N₃O₆SCl

  • Absorption: 665 nm ± 3

  • Emission: 670 nm ± 3

  • ε [M⁻¹ cm⁻¹]: >81,000

  • Buffer System for Fluorescence Readings: PBS, pH 7.4

  • Solubility: Acetonitrile

  • Appearance (colour): dark blue

  • Appearance (form): solid (powder)

  • Storage: –20 °C. Keep dry. Protect from light, especially in solution

  • Reactive Moiety: free carboxylic acid

Application

Biosensor measurements and singlet oxygen–based photochemical assays

Additional information

Pack Size

Safety Information

Hazard Classifications

  • Acute toxicity, Category 4 (Acute Tox. 4)

  • Skin irritation, Category 2 (Skin Irrit. 2)

  • Eye irritation, Category 2 (Eye Irrit. 2)

  • Specific target organ toxicity – single exposure, Category 3 (STOT SE 3)

Hazard Statements

H302 – Harmful if swallowed.

H315 – Causes skin irritation.

H319 – Causes serious eye irritation.

H335 – May cause respiratory irritation.

Precautionary Statements

P261 – Avoid breathing dust/fume/gas/mist/vapours/spray.

P305+P351+P338 – IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Signal Word

Warning

WGK

WGK 3

Storage Class Code

13 – Non-flammable solids in non-flammable package

Transport Information

ADR / RID (Road & Rail): Not dangerous goods

IATA-DGR (Air Transport): Not dangerous goods

IMDG Code (Sea Transport): Not dangerous goods

Downloads

Material safety data sheet

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