Molekula
Orcein
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
Orcein is a natural dye derived from lichens, used in histology for staining tissues and in microscopy for highlighting cellular structures. It is also employed in analytical chemistry and as a pH indicator. CAS: 1400-62-0, Molecular Formula: C28H24N2O7, Molecular Weight: 500.51 g/mol, Storage: Ambient, Signal Word: Warning. Molekula supplies Orcein 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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5 g — $139.00 per pack
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10 g — $224.20 per pack
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 | Reddish-Brown Crystalline Powder |
| Loss on Drying | <12.0% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 90027159 |
| CAS Number | 1400-62-0 |
| IUPAC Name | 8-(2,4-dihydroxy-6-methylanilino)-2-(2,4-dihydroxy-6-methylphenyl)imino-7-hydroxy-1,9-dimethyldibenzofuran-3-one |
| EC Number | 215-750-6 |
| Molecular Formula | C28H24N2O7 |
| Molecular Weight | 500.51 |
| Exact Mass | 500.1584 |
| SMILES | CC1=CC(=CC(=C1NC2=C(C3=C(C=C2O)OC4=CC(=O)C(=NC5=C(C=C(C=C5C)O)O)C(=C43)C)C)O)O |
| InChIKey | QFIIYGZAUXVPSZ-UHFFFAOYSA-N |
| InChI | InChI=1S/C28H24N2O7/c1-11-5-15(31)7-17(33)25(11)29-27-13(3)23-21(9-19(27)35)37-22-10-20(36)28(14(4)24(22)23)30-26-12(2)6-16(32)8-18(26)34/h5-10,29,31-35H,1-4H3 |
| PubChem CID | 72685 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 32129000 |
| Tariff Code | 3212900000 |
Safety & GHS
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Health Hazard
GHS07
Hazard statements
- H302 Harmful if swallowed
Precautionary statements
- P264 Wash thoroughly after handling
- 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
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
- 2,8-bis(2,4-dihydroxy-6-methylanilino)-1,9-dimethyldibenzo[b,d]furan-3,7-dione
- 2,8-bis(2,4-dihydroxy-6-methylanilino)-1,9-dimethyldibenzofuran-3,7-dione
- C.I. Natural Red 28
- natural red 28
- NCIStruc1_000110
- NCIStruc2_001941
- Orcein (from synthetic)
- Orcein (Synthetic)
- Pacein
- QFIIYGZAUXVPSZ-UHFFFAOYSA-N
Frequently asked questions
What is Orcein used for?
Orcein is primarily used as a biological stain in histology and as a dye in textile and leather industries.
What is the chemical formula and molecular weight of Orcein?
The formula is C28H24N2O7 with a molecular weight of 500.51 g/mol.
How should Orcein be stored?
Orcein should be stored at ambient temperature, protected from light and moisture.
What grade of Orcein does Molekula supply?
Molekula supplies Orcein in analytical grade, suitable for laboratory and research use.
Can Molekula supply Orcein in bulk quantities?
Yes, Molekula can supply Orcein in bulk quantities—please contact our sales team for volume pricing and availability.
What documentation comes with an Orcein 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.