Molekula
Malachite Green Oxalate(C.I 42000)
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 (C.I. 42000) is a synthetic triarylmethane dye used in textile dyeing, biological staining, and research applications. It is a crystalline powder with a molecular formula of C52H54N4O12 and a molecular weight of 927.01 g/mol. It is stable at ambient storage conditions. Hazardous: Signal word Danger. 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.
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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100 g — £77.70 per pack ex VAT · £93.24 inc. VAT
Need a different quantity or pack?
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 | Dark green crystals |
| Loss on Drying | ≤10% |
| Solubility in water | Clear Solution |
| Wavelength of maximum absorption (in 50:50 IMS:Water) | 620 - 625nm |
| Absorptivity (E 1% in 1cm cell, water) at max, on dried substance | 1550 - 1950 |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 6.1 |
| Packing Group | III |
| Acidity | Acid |
Identification
| Property | Value |
|---|---|
| SKU | 49144771 |
| 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, 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
- Malachite Green oxalate salt
- Malachite Green oxalate salt (C.I. 42000)
- N,N,N',N'Tetramethyl4,4'diaminotriphenylcarbenium oxalate
- Ossalato Verde Malachite
- Oxalate Vert Malachite
- Oxalato de verde malaquita
- Oxalato Verde Malaquita
Frequently asked questions
What is Malachite Green Oxalate used for?
It is primarily used as a dye in textile and leather coloring, and in some research applications as a fluorescent tracer.
What is the chemical formula and molecular weight of Malachite Green Oxalate?
The formula is C52H54N4O12 with a molecular weight of 927.01 g/mol.
How should Malachite Green Oxalate be stored?
It should be stored at ambient temperature, away from light and moisture, in a tightly sealed container.
What grade of Malachite Green Oxalate does Molekula supply?
We supply it in technical grade; please contact us for specific purity requirements.
Can Molekula supply Malachite Green Oxalate in bulk?
Yes, we can supply Malachite Green Oxalate in bulk quantities—please contact our sales team for pricing and availability.
What documentation comes with a purchase of Malachite Green Oxalate?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS) with the shipment.
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.