Molekula
Methyl Violet 2B, certified
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
Methyl Violet 2B, certified is a synthetic basic dye used in staining biological specimens and as a pH indicator in analytical chemistry. It appears as a dark green crystalline powder with a molecular formula of C24H28N3Cl and a molecular weight of 393.95 g/mol. Stored at ambient temperatures, it is classified as dangerous due to its toxicity. Molekula supplies Methyl Violet 2B, certified 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 — £30.90 per pack ex VAT · £37.08 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 | Green to very dark green crystals or crystalline powder |
| Melting Point | 136 - 138°C |
| Solubility in water | Soluble |
| Loss on drying (110 °C) | ≤ 10.0% |
| Absorption Ratio (λmax-15nm/λmax+15nm) | 1.060 - 1.190 |
| Absorption maximum (in EtOH) | 579.0 - 589.0 nm |
| Absorptivity (1%, 1cm, λmax) | ≥ 1500.00 |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 9 |
| Packing Group | III |
| Acidity | Acid |
Identification
| Property | Value |
|---|---|
| SKU | 56375185 |
| CAS Number | 8004-87-3 |
| Molecular Formula | C24H28N3.Cl |
| Molecular Weight | 393.95 |
| SMILES | CN=C1C=CC(=C(C2=CC=C(C=C2)N(C)C)C3=CC=C(C=C3)N(C)C)C=C1 |
| 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
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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
- H351 Suspected of causing cancer
- 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
- 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
- P501 Dispose of contents/container to an approved waste disposal plant
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
No alternate names recorded for this product.
Frequently asked questions
What is Methyl Violet 2B used for?
Methyl Violet 2B is primarily used as a pH indicator and in dyeing applications, particularly in histology and microbiology for staining cellular structures.
What is the chemical formula and molecular weight of Methyl Violet 2B?
The formula is C24H28N3·Cl and the molecular weight is 393.95 g/mol.
How should Methyl Violet 2B be stored?
Store at ambient temperature, away from moisture and direct sunlight, in a tightly closed container.
What grade of Methyl Violet 2B does Molekula supply?
Molekula supplies Methyl Violet 2B in certified grade, suitable for analytical and laboratory use.
Can Molekula supply Methyl Violet 2B in bulk?
Yes, Molekula can supply Methyl Violet 2B in bulk quantities—please contact sales for pricing and availability.
What documentation comes with a purchase of Methyl Violet 2B?
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.