Molekula
Brilliant Green (C.I. 42040)
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
Brilliant Green (C.I. 42040) is a synthetic triarylmethane dye used in biological staining, pharmaceutical research, and as a tracer in chemical processes. It is also used to dye wool, silk, cotton, nylon, acrylic and paper, to make inks, wood stains and pigments, and as a component of bacteriological culture media. It appears as a dark green crystalline powder with a molecular weight of 482.63 g/mol, a formula of C27H34N2O4S, and a CAS number of 633-03-4. It is stored at ambient temperatures and carries a Danger signal word due to its toxicity. Molekula supplies Brilliant Green (C.I. 42040) 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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100 g — £35.50 per pack ex VAT · £42.60 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 | Powder or Crystals |
| Shade | Similar to Standard |
| Water solubility | Conforms |
| Wavelength of Max. Absorption | 625.0-631.0 nm (1:1 IMS:DI Water) |
| Loss on Drying (105°C) | <10% |
| Specific absorption (E 1% in 10 mm cell) at λ max. | >1900 |
| Absorption Ratio (λmax-15nm/λmax+15nm) | 1.00-1.20 |
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 | Minute, glistening, golden crystals |
| Melting Point | 210 °C, decomposes. |
Source: PubChem CID 12449 (HSDB)
Identification
| Property | Value |
|---|---|
| SKU | 38834671 |
| CAS Number | 633-03-4 |
| IUPAC Name | [4-[[4-(diethylamino)phenyl]-phenylmethylidene]cyclohexa-2,5-dien-1-ylidene]-diethylazanium;hydrogen sulfate |
| EC Number | 211-190-1 |
| Molecular Formula | C27H34N2O4S |
| Molecular Weight | 482.63 |
| Exact Mass | 482.2239 |
| SMILES | CCN(CC)C1=CC=C(C=C1)C(=C2C=CC(=[N+](CC)CC)C=C2)C3=CC=CC=C3.OS(=O)(=O)[O-] |
| InChIKey | NNBFNNNWANBMTI-UHFFFAOYSA-M |
| InChI | InChI=1S/C27H33N2.H2O4S/c1-5-28(6-2)25-18-14-23(15-19-25)27(22-12-10-9-11-13-22)24-16-20-26(21-17-24)29(7-3)8-4;1-5(2,3)4/h9-21H,5-8H2,1-4H3;(H2,1,2,3,4)/q+1;/p-1 |
| PubChem CID | 12449 |
| UN Number | UN3077 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 32129000 |
| Tariff Code | 3212900000 |
Safety & GHS
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Corrosive
GHS05
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Health Hazard
GHS07
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Hazardous to the Environment
GHS09
Hazard statements
- H302 Harmful if swallowed
- H315 Causes skin irritation
- H317 May cause an allergic skin reaction
- H318 Causes serious eye damage
- H400 Very toxic to aquatic life
- H410 Very toxic to aquatic life with long lasting effects
Precautionary statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- 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
- P302+352 IF ON SKIN: Wash with soap and water
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
Documents
Safety Data Sheets (SDS)
Available in English, English (US), French, German, Italian, Portuguese, 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
- Basic Brilliant Green
- Basic green 1
- Basic Green V
- Brilliant green
- C.I. Basic Green 1
- Diamond Green G
- Fast Green J
- Green EN
- Malachite Green G
- Solid Green
Frequently asked questions
What is Brilliant Green (C.I. 42040) used for?
It is primarily used as a dye in biological staining and as a disinfectant in veterinary medicine.
What is the chemical formula and molecular weight of Brilliant Green?
The formula is C27H34N2O4S with a molecular weight of 482.63 g/mol.
How should Brilliant Green be stored?
Store at ambient temperature, away from light and moisture, and keep in a tightly closed container.
What grade of Brilliant Green does Molekula supply?
We supply Brilliant Green in analytical grade for laboratory and research use.
Can Molekula supply Brilliant Green in bulk quantities?
Yes, we can supply Brilliant Green in bulk quantities—please contact our sales team for pricing and availability.
What documentation comes with a purchase of Brilliant Green?
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.