Malachite Green Aqueous Solution (5%) - BioReagent,Suitable for microbiology,Biological Stain,for microscopy,5% , CAS No.569-64-2

CAS: 569-64-2 Cat. No.: M1508174 Formula: C23H25ClN2 Molecular Weight: 364.92 EC Number: 209-322-8
AVAILABLE TO ORDER
GRADE & PURITY BioReagent ? BioReagent grade — tested suitable for life-science and molecular-biology use. Use for cell culture, assays, and biochemical work needing biological compatibility. Suitable for microbiology ? Microbiology grade — suited to culturing and testing microorganisms. Use in microbial media, identification, and susceptibility work. Biological Stain ? Biological stain grade — dyes characterized for staining cells and tissues. Use in histology and microscopy where staining consistency matters. for Microscopy ? Microscopy grade — reagents/stains suited to sample prep and imaging. Use in microscopy where clarity and low background are needed. 5%
Synonyms
Malachite Green Solution
Storage
Room temperature
Shipped In
Wet ice
Application
Microbial staining
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Size
Germany (EU)
USA*
Price
Qty
100ml
M1508174-100ml
Made to order · 8–12 wks
€69.33
Enter a quantity for the sizes you want to add.
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Why this grade

BioReagent,Suitable for microbiology,Biological Stain,for microscopy,5% Biological Stain,BioReagent,for Microscopy,Suitable for microbiology for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

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Storage & shipping

Room temperature Ships Wet ice Check lot-specific COA for exact specifications.

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Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

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Literature proof

Cited in 291 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

Malachite green, also known as China green, is a synthetic dye with a CAS number of 569-64-2 and a molecular weight of 364.92. The 1% aqueous solution of malachite green is mainly composed of malachite green and deionized water. It can be used for Brucella staining or other applications, and can be combined with other dyes to achieve excellent staining results for pathological sections invaded by fungi. This reagent is for research use only and is not suitable for clinical diagnosis or any other purposes.

Self-prepared Materials:

Glass slides, coverslips, alcohol lamps, optical microscopes.

Operating Procedures (For Reference Only):

1. The 5% aqueous malachite green solution is generally intended for special applications. For routine staining purposes, it should be diluted to a concentration of 0.5–1% prior to use.

2. Smear Preparation: Number the glass slides. Add 2–3 drops of the 0.5–1% aqueous malachite green solution and stain for 2–3 minutes.

3. Cover the smear with a clean coverslip and press gently to prepare a squash preparation.

4. Observe the bacterial morphology under the low-power, high-power, or oil immersion objective lens of an optical microscope.

Precautions

1. Mark a circle on the back of the slide before preparing the smear to identify the area for subsequent observation.

2. Bacterial culture duration affects staining results. For Gram-positive bacteria, an excessively long incubation period, cell death, or bacterial lysis often results in a negative reaction.

3. Use the reagent as soon as possible after opening to prevent any adverse impact on subsequent experimental results.

Specifications

Synonyms
Malachite Green Solution
Specifications & Purity
BioReagent,Suitable for microbiology,Biological Stain,for microscopy,5%
Stability And Storage
Store at room temperature long term (12 months).
Storage
Room temperature
Shipped In
Wet ice
This product requires cold chain shipping. Ground and other economy services are not available.
Grade
Biological Stain, BioReagent, for Microscopy, Suitable for microbiology
Names and Identifiers
Isomeric SMILES
CN(C)C1=CC=C(C=C1)C(=C2C=CC(=[N+](C)C)C=C2)C3=CC=CC=C3.[Cl-]
UN Number
2811
Packing Group
I
Molecular Weight
364.92
Reaxy-Rn
3580148
Reaxys-RN_link_address
https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=3580148&ln=

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

Download SDS →

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

View datasheet →

🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Certificates(CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

1 results found

Lot NumberCertificate TypeDateItem
ZJ26F0636736Certificate of AnalysisJun 24, 2026 M1508174
Chemical and Physical Properties
x_melt_point_char158-160° C
FAQs and Articles
Citations of This Product
Solution Calculators
Reviews

Customer Reviews

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