Molekula
Brilliant Crocein (C.l. 27290)
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 Crocein (C.I. 27290) is a sodium salt dye used in analytical chemistry and staining applications. In histology it serves as a dye for demonstrating muscle fibres, either combined with acid fuchsin or used in its place. It is a water-soluble, orange-red powder with a molecular formula of C22H14N4Na2O7S2 and a molecular weight of 556.48 g/mol. It is stable at ambient temperatures and has no signal word. Molekula supplies Brilliant Crocein (C.I. 27290) 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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100 g — $176.70 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 | Red powder |
| Water | ≤5.0% |
| Strength | ~100.0% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Acid |
Identification
| Property | Value |
|---|---|
| SKU | 90026906 |
| CAS Number | 5413-75-2 |
| IUPAC Name | disodium;7-hydroxy-8-[(4-phenyldiazenylphenyl)diazenyl]naphthalene-1,3-disulfonate |
| EC Number | 226-502-1 |
| Molecular Formula | C22H14N4Na2O7S2 |
| Molecular Weight | 556.48 |
| Exact Mass | 556.0099 |
| SMILES | C1=CC=C(C=C1)N=NC2=CC=C(C=C2)N=NC3=C(C=CC4=CC(=CC(=C43)S(=O)(=O)[O-])S(=O)(=O)[O-])O.[Na+].[Na+] |
| InChIKey | PEAGNRWWSMMRPZ-UHFFFAOYSA-L |
| InChI | InChI=1S/C22H16N4O7S2.2Na/c27-19-11-6-14-12-18(34(28,29)30)13-20(35(31,32)33)21(14)22(19)26-25-17-9-7-16(8-10-17)24-23-15-4-2-1-3-5-15;;/h1-13,27H,(H,28,29,30)(H,31,32,33);;/q;2*+1/p-2 |
| PubChem CID | 21519 |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 2927.00.30.00 |
| Tariff Code | 2927000090 |
Safety & GHS
Precautionary statements
- P264 Wash thoroughly after handling
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P308+313 IF exposed or concerned: Get medical advice/attention
Documents
Safety Data Sheets (SDS)
Available in English, 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
- ACID RED 73
- Brilliant crocein
- Brilliant Crocein MOO
- Brilliant Croceine MOO
- C.I. Acid Red 73
- C.I. Acid Red 73, disodium salt
- Crocein Scarlet 3B
- Crocein Scarlet MOO
- Sodium 6-hydroxy-5-(4-phenylazophenylazo)naphthalene-2,4-disulphonate
- Woodstain Scarlet
Frequently asked questions
What is Brilliant Crocein (C.I. 27290) used for?
It is primarily used as a dye in textile and paper applications, and in some analytical and research settings due to its bright color and solubility.
What is the chemical formula and molecular weight of Brilliant Crocein?
The formula is C22H14N4Na2O7S2 with a molecular weight of 556.48 g/mol.
How should Brilliant Crocein be stored?
It should be stored at ambient temperature, protected from moisture and light.
What grade of Brilliant Crocein is available?
Molekula supplies Brilliant Crocein in technical grade; custom grades may be available upon request.
Can Molekula supply Brilliant Crocein in bulk?
Yes, Molekula can supply Brilliant Crocein in bulk quantities; please contact sales for pricing and availability.
What documentation comes with a purchase of Brilliant Crocein?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS); additional documentation can be provided upon request.
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.