Molekula
Molekula Black B
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
Molekula Black B (Sudan Black B, C.I. Solvent Black 3) is a fat-soluble bis(azo) dye, predominantly used as a histological stain for lipids, such as demonstrating triglycerides in frozen sections and staining protein-bound lipids in paraffin sections. It is commonly employed in coatings, plastics, and inks to provide deep black coloration. This chemical has a CAS number of 4197-25-5, with a molecular formula of C29H24N6 and a molecular weight of 456.54. It is stable at ambient storage conditions and carries a signal word of Warning for safety handling. Molekula supplies Molekula Black B 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 — £38.30 per pack ex VAT · £45.96 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 | Black Powder |
| Melting Point | ≥ 159 Deg C |
| Ash | ≤ 1% |
| Moisture | ≤ 1% |
| Fineness | 80mesh <5% |
| Colour differential value | <1 |
| Shade | Similar to standard |
| Tint Strength | 100 +/- 5% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 21998092 |
| CAS Number | 4197-25-5 |
| IUPAC Name | (2,2-dimethyl-1,3-dihydroperimidin-6-yl)-(4-phenyldiazenylnaphthalen-1-yl)diazene |
| EC Number | 224-087-1 |
| Molecular Formula | C29H24N6 |
| Molecular Weight | 456.54 |
| Exact Mass | 456.2062 |
| SMILES | CC1(NC2=C3C(=C(C=C2)N=NC4=CC=C(C5=CC=CC=C54)N=NC6=CC=CC=C6)C=CC=C3N1)C |
| InChIKey | YCUVUDODLRLVIC-UHFFFAOYSA-N |
| InChI | InChI=1S/C29H24N6/c1-29(2)30-26-14-8-13-22-25(17-18-27(31-29)28(22)26)35-34-24-16-15-23(20-11-6-7-12-21(20)24)33-32-19-9-4-3-5-10-19/h3-18,30-31H,1-2H3 |
| PubChem CID | 61336 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 3212900050 |
| Tariff Code | 3212900000 |
Safety & GHS
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Serious Health Hazard
GHS08
Hazard statements
- H341 Suspected of causing genetic defects
Precautionary statements
- P201 Obtain special instructions before use
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P263 Avoid contact during pregnancy/while nursing
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P302+352 IF ON SKIN: Wash with soap and water
- P308+313 IF exposed or concerned: Get medical advice/attention
Documents
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. Solvent Black 3
- Ceres Black BN
- Fast Black HB
- Fat Black HB
- Hexatype Black B
- Lacquer Black S
- Lacquer Black VB
- Nubian Black BT
- Sudan black B
- Typogen Black
Frequently asked questions
What is Molekula Black B primarily used for?
Molekula Black B is commonly used as a high-performance black dye in plastics, inks, and coatings for its excellent lightfastness and thermal stability.
What is the chemical formula and molecular weight of Molekula Black B?
The chemical formula is C₂₉H₂₄N₆ with a molecular weight of 456.54 g/mol.
How should Molekula Black B be stored?
Store at ambient temperature in a cool, dry place, away from direct sunlight and incompatible substances.
What grades or purity levels of Molekula Black B does Molekula supply?
Molekula supplies technical-grade and analytical-grade (high-purity) Black B, depending on application requirements.
Can Molekula supply Molekula Black B in bulk quantities?
Yes, Molekula offers bulk packaging options (e.g., 25 kg drums, 1-ton containers) for industrial and large-scale applications.
What documentation comes with an order of Molekula Black B?
Each order includes a Certificate of Analysis (CoA), Safety Data Sheet (SDS), 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.