Molekula
Malachite Green oxalate
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 oxalate is a synthetic triarylmethane dye with an intense green colour (absorption maximum around 617 nm), primarily used as a biological stain in microbiology and histology, as well as in aquaculture for parasitic treatment and in some industrial applications like dyeing textiles. It is also employed in research for cell tracking and viability assays. This chemical has a CAS number of 2437-29-8, with the molecular formula C52H54N4O12 and a molecular weight of 927.01 g/mol. It should be stored at ambient conditions and handled with caution, as it carries a "Danger" signal word due to its toxicity and potential carcinogenic properties. Molekula supplies Malachite Green oxalate 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.
Often bought together
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 — £26.40 per pack ex VAT · £31.68 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 | Metallic green to dark green crystalline powder |
| Assay | ≥90.0% |
| Water insoluble matter | ≤0.5% |
| Spectroscopy | ~614 nm in water |
| Visual Transition Interval | From pH 0.0 (yellow) to pH 2.0 (green) and From pH 11.6 (blue-green) to pH 14.0 (colourless) |
| Solubility (0.01% aqueous solution) | Dark green solution |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 6.1 |
| Packing Group | III |
| Acidity | Acid |
Identification
| Property | Value |
|---|---|
| SKU | 11318220 |
| CAS Number | 2437-29-8 |
| IUPAC Name | bis([4-[[4-(dimethylamino)phenyl]-phenylmethylidene]cyclohexa-2,5-dien-1-ylidene]-dimethylazanium);bis(2-hydroxy-2-oxoacetate);oxalic acid |
| EC Number | 219-441-7 |
| Molecular Formula | C52H54N4O12 |
| Molecular Weight | 927.01 |
| Exact Mass | 926.3738 |
| SMILES | CN(C)C1=CC=C(C=C1)C(=C2C=CC(=[N+](C)C)C=C2)C3=CC=CC=C3.CN(C)C1=CC=C(C=C1)C(=C2C=CC(=[N+](C)C)C=C2)C3=CC=CC=C3.C(=O)(C(=O)O)O.C(=O)(C(=O)[O-])O.C(=O)(C(=O)[O-])O |
| InChIKey | CNYGFPPAGUCRIC-UHFFFAOYSA-L |
| InChI | InChI=1S/2C23H25N2.3C2H2O4/c2*1-24(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;3*3-1(4)2(5)6/h2*5-17H,1-4H3;3*(H,3,4)(H,5,6)/q2*+1;;;/p-2 |
| PubChem CID | 2724411 |
| UN Number | UN2811 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 32129000 |
| Tariff Code | 3212900000 |
Safety & GHS
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Corrosive
GHS05
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Toxic
GHS06
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Serious Health Hazard
GHS08
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Hazardous to the Environment
GHS09
Hazard statements
- H301 Toxic if swallowed
- H318 Causes serious eye damage
- 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
- P263 Avoid contact during pregnancy/while nursing
- P273 Avoid release to the environment
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- P501 Dispose of contents/container to an approved waste disposal plant
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, 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
- C. I. BASIC GREEN
- Malachite green hemioxalate
- Malachite Green oxalate salt
- Malachite Green oxalate salt (C.I. 42000)
- N,N,N',N'Tetramethyl4,4'diaminotriphenylcarbenium oxalate
- oic acid, ethanedioic acid
- Ossalato Verde Malachite
- Oxalate Vert Malachite
- Oxalato de verde malaquita
- Oxalato Verde Malaquita
Frequently asked questions
What is Malachite Green oxalate commonly used for?
Malachite Green oxalate is primarily used as a dye for textiles, leather, and paper, as well as a biological stain in microscopy and a fungicide in aquaculture.
What is the chemical formula and molecular weight of Malachite Green oxalate?
The chemical formula is **C<sub>52</sub>H<sub>54</sub>N<sub>4</sub>O<sub>12</sub>**, and the molecular weight is **927.01 g/mol**.
How should Malachite Green oxalate be stored?
Store at **ambient temperature** in a cool, dry place, away from incompatible substances, and ensure proper ventilation.
What grades or purities of Malachite Green oxalate does Molekula supply?
Molekula supplies **analytical and technical grades** of Malachite Green oxalate, with purity specifications available upon request.
Can Molekula supply Malachite Green oxalate in bulk quantities?
Yes, Molekula can provide bulk quantities of Malachite Green oxalate, with minimum order quantities and packaging options tailored to your needs.
What documentation comes with an order of Malachite Green oxalate?
Each order includes a **Certificate of Analysis (CoA)**, Material Safety Data Sheet (MSDS), and a product specification sheet.
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.