Molekula
Malachite Green chloride
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Malachite Green chloride is a synthetic triarylmethane dye with strong antimicrobial properties, widely used in aquaculture for parasitic control, microbiological staining, and as a research reagent in cell biology. It appears as a dark green powder or crystalline solid, soluble in water and organic solvents. This chemical has a CAS number of 569-64-2, with the molecular formula C23H25N2Cl and a molecular weight of 364.91 g/mol. It must be stored at ambient temperature and handled with caution, as it carries a **Danger** signal word due to its toxicity. Molekula supplies Malachite Green chloride from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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25 g — £69.80 per pack ex VAT · £83.76 inc. VAT
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Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | Green crystals |
| Identification | Conforms to reference |
| Wavelength of maximum absorption (in 50:50 IMS:Water) | 620.0-625.0nm |
| Loss on Drying (105°C) | ≤10.00% |
| Specific Absorption (E 1%/1cm) at λ max1 | 1550-1950 |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 9 |
| Packing Group | III |
| Acidity | Acid |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Green crystals with metallic luster |
| Water Solubility | 40 g/L at 25 °C |
| Solubility (other solvents) | Very soluble in ethanol |
| Vapour Pressure | 2.4 × 10⁻¹³ mmHg at 25 °C (Estimated) |
| log P (octanol/water) | 0.62 |
Source: PubChem CID 11294 (HSDB)
Identification
| Property | Value |
|---|---|
| SKU | 90027503 |
| CAS Number | 569-64-2 |
| IUPAC Name | [4-[[4-(dimethylamino)phenyl]-phenylmethylidene]cyclohexa-2,5-dien-1-ylidene]-dimethylazanium chloride |
| EC Number | 209-322-8 |
| Molecular Formula | C23H25N2 . Cl |
| Molecular Weight | 364.91 |
| Exact Mass | 364.1706 |
| SMILES | CN(C)C1=CC=C(C=C1)C(=C2C=CC(=[N+](C)C)C=C2)C3=CC=CC=C3.[Cl-] |
| InChIKey | FDZZZRQASAIRJF-UHFFFAOYSA-M |
| InChI | InChI=1S/C23H25N2.ClH/c1-24(2)21-14-10-19(11-15-21)23(18-8-6-5-7-9-18)20-12-16-22(17-13-20)25(3)4;/h5-17H,1-4H3;1H/q+1;/p-1 |
| PubChem CID | 11294 |
| UN Number | UN3077 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 3212.90.0050 |
| Tariff Code | 3212900000 |
Safety & GHS
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Corrosive
GHS05
-
Health Hazard
GHS07
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Serious Health Hazard
GHS08
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Hazardous to the Environment
GHS09
Hazard statements
- H302 Harmful if swallowed
- H318 Causes serious eye damage
- H340 May cause genetic defects
- H361d Suspected of damaging fertility. Suspected of damaging the unborn child.
- H400 Very toxic to aquatic life
- H410 Very toxic to aquatic life with long lasting effects
Precautionary statements
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P263 Avoid contact during pregnancy/while nursing
- P273 Avoid release to the environment
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+312 IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- P308+313 IF exposed or concerned: Get medical advice/attention
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, Russian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- Aniline Green
- Basic Green 4
- Benzal Green
- Benzaldehyde Green
- China Green
- Diamond Green B
- Grenoble Green
- MALACHITE GREEN
- Victoria Green
- Victoria Green B
Frequently asked questions
What is Malachite Green chloride commonly used for?
Malachite Green chloride is primarily used as a dye for silk, wool, and cotton, as well as a biological stain in microscopy (e.g., for fungi and parasites) and an antifungal agent in aquaculture.
What is the chemical formula and molecular weight of Malachite Green chloride?
The chemical formula is **C₂₃H₂₅N₂·Cl** and the molecular weight is **364.91 g/mol**.
How should Malachite Green chloride be stored?
Store at **ambient temperature** in a tightly sealed container, away from direct sunlight and moisture.
What grades or purities of Malachite Green chloride does Molekula supply?
Molekula supplies **analytical grade** and **technical grade** Malachite Green chloride, with purity specifications available upon request.
Can Molekula supply Malachite Green chloride in bulk quantities?
Yes, we offer bulk packaging options—contact us for custom quantities and pricing.
What documentation comes with an order of Malachite Green chloride?
Each order includes a **Certificate of Analysis (CoA)**, **Material Safety Data Sheet (MSDS)**, and **batch-specific documentation** for traceability.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.