Molekula
Haematoxylin (C.I. 75290)
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
Haematoxylin (C.I. 75290) is a natural dye used primarily in histology for staining cell nuclei in tissue sections. It is a key component in the Haematoxylin and Eosin (H&E) staining method. Beyond its role as a biological stain in microscopy, it is also used as a colourant in the manufacture of inks. Available in powder form with a CAS number of 517-28-2, molecular formula C16H14O6, and molecular weight 302.28 g/mol. Store at ambient temperature. Signal word: Warning. Molekula supplies Haematoxylin (C.I. 75290) 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 — £70.10 per pack ex VAT · £84.12 inc. VAT
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100 g — £240.00 per pack ex VAT · £288.00 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 | Fine,beige to tan to light brown powder Light Sensitive |
| Water | ≤8.0 % |
| Dye Content | ≥60% |
| Solubility in alcohol | To pass test |
| Suitability for Microscopy | To pass test |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Base |
Identification
| Property | Value |
|---|---|
| SKU | 29628570 |
| CAS Number | 517-28-2 |
| IUPAC Name | (6aS,11bR)-7,11b-dihydro-6H-indeno[2,1-c]chromene-3,4,6a,9,10-pentol |
| EC Number | 208-237-3 |
| Molecular Formula | C16H14O6 |
| Molecular Weight | 302.28 |
| Exact Mass | 302.079 |
| SMILES | C1C2=CC(=C(C=C2[C@H]3[C@@]1(COC4=C3C=CC(=C4O)O)O)O)O |
| InChIKey | WZUVPPKBWHMQCE-XJKSGUPXSA-N |
| InChI | InChI=1S/C16H14O6/c17-10-2-1-8-13-9-4-12(19)11(18)3-7(9)5-16(13,21)6-22-15(8)14(10)20/h1-4,13,17-21H,5-6H2/t13-,16+/m0/s1 |
| PubChem CID | 442514 |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 3212.90.00.50 |
| Tariff Code | 3212900000 |
Safety & GHS
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Health Hazard
GHS07
Hazard statements
- H302 Harmful if swallowed
- H315 Causes skin irritation
- H319 Causes serious eye irritation
- H335 May cause respiratory irritation
Precautionary statements
- P210 Keep away from heat/sparks/open flames/hot surfaces - No smoking
- P301+330 IF SWALLOWED: Rinse mouth. Do NOT induce vomiting
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- 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
- (6aS,11bR)-7,11b-dihydro-6H-indeno[2,1-c]chromene-3,4,6a,9,10-pentol
- Benz(b)indeno(1,2-d)pyran-3,4,6a,9,10(6H)-pentol, 7,11b-dihydro-, cis-(+)-
- C.I. 75290
- Haematoxylin
- hematoxiline
- HEMATOXYLIN
- Hydroxybrasilin
- Hydroxybrazilin
- Hydroxylrasilin
- Natural Black 1
Frequently asked questions
What is Haematoxylin used for?
Haematoxylin is primarily used as a histological stain in microscopy, especially for staining cell nuclei in tissue sections.
What is the chemical formula and molecular weight of Haematoxylin?
The chemical formula is C16H14O6, and the molecular weight is 302.28 g/mol.
How should Haematoxylin be stored?
Haematoxylin should be stored at ambient temperature, protected from light and moisture.
What grade of Haematoxylin does Molekula supply?
Molekula supplies Haematoxylin in analytical grade, suitable for laboratory and histological applications.
Can Molekula supply Haematoxylin in bulk quantities?
Yes, Molekula can supply Haematoxylin in bulk quantities—please contact our sales team for pricing and availability.
What documentation comes with a Haematoxylin order?
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.