Molekula
Coomassie brilliant blue R-250 (C.I. 42660)
Coomassie brilliant blue R-250 (C.I. 42660) is a blue dye commonly used for protein staining in SDS-PAGE and other electrophoretic techniques. It binds to proteins via hydrophobic and ionic interactions, enabling visualization of protein bands. Available in powder form with a molecular weight of 825.97 g/mol, its CAS number is 6104-59-2, and its molecular formula is C45H44N3NaO7S2. Stable at ambient temperature with no signal word. Molekula supplies Coomassie brilliant blue R-250 from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Overview
Coomassie brilliant blue R-250 (C.I. 42660) is a blue dye commonly used for protein staining in SDS-PAGE and other electrophoretic techniques. It binds to proteins via hydrophobic and ionic interactions, enabling visualization of protein bands. Available in powder form with a molecular weight of 825.97 g/mol, its CAS number is 6104-59-2, and its molecular formula is C45H44N3NaO7S2. Stable at ambient temperature with no signal word. Molekula supplies Coomassie brilliant blue R-250 from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Specifications
| Property | Value |
|---|---|
| Appearance | Blue to dark blue powder |
| Identification | Conforms to reference |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Shelf Life | 60 months |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| CAS Number | 6104-59-2 |
| Molecular Formula | C45H44N3NaO7S2 |
| Molecular Weight | 825.97 |
| SMILES | CCN(CC1=CC(=CC=C1)S(=O)(=O)[O-])C2=CC=C(C=C2)C(=C3C=CC(=[N+](CC)CC4=CC(=CC=C4)S(=O)(=O)[O-])C=C3)C5=CC=C(C=C5)NC6=CC=C(C=C6)OCC.[Na+] |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 32129000 |
| Tariff Code | 3212900000 |
Safety & GHS
Precautionary statements
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P302+352 IF ON SKIN: Wash with soap and water
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
For research and industrial use only
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.
Pricing & pack sizes
Synonyms
No alternate names recorded for this product.
Frequently asked questions
What is Coomassie brilliant blue R-250 used for?
It is primarily used as a protein stain in SDS-PAGE and other electrophoresis techniques to visualize proteins in gels.
What is the chemical formula and molecular weight of Coomassie brilliant blue R-250?
The formula is C45H44N3NaO7S2 and the molecular weight is 825.97 g/mol.
How should Coomassie brilliant blue R-250 be stored?
It should be stored at ambient temperature, protected from light and moisture.
What grade of Coomassie brilliant blue R-250 is available?
Available in analytical grade for laboratory use.
Can Molekula supply Coomassie brilliant blue R-250 in bulk?
Yes, Molekula can supply Coomassie brilliant blue R-250 in bulk quantities—please contact sales for details.
What documentation comes with my order of Coomassie brilliant blue R-250?
Each order includes a Certificate of Analysis (CoA) and safety data sheet (SDS) upon request.
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