Molekula
Toluidine Blue Powder C.I. 50240
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
Toluidine Blue Powder C.I. 50240 is a basic dye used in histology, microbiology, and staining applications for cellular and tissue visualization. It is a chloride salt with the molecular formula C15H16ClN3S and a molecular weight of 305.83 g/mol. CAS number: 92-31-9. Store at ambient temperature. Signal word: Danger. Molekula supplies Toluidine Blue Powder C.I. 50240 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.
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25 g — £51.00 per pack ex VAT · £61.20 inc. VAT
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Specifications
| Property | Value |
|---|---|
| Appearance | Blue solid |
| Loss on Drying | ≤5% |
| Shade | Similar to Standard |
| Wavelength of Max. Absorption | 628-633nm |
| Specific Absorbance (E 1%/1cm) | ≥1200 |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 90022085 |
| CAS Number | 92-31-9 |
| IUPAC Name | (7-amino-8-methylphenothiazin-3-ylidene)-dimethylazanium chloride |
| Molecular Formula | C15H16ClN3S |
| Molecular Weight | 960.80 |
| Exact Mass | 305.0753 |
| SMILES | CC1=CC2=C(C=C1N)SC3=CC(=[N+](C)C)C=CC3=N2.[Cl-] |
| InChIKey | GEDVVYWLPUPJJZ-UHFFFAOYSA-N |
| InChI | InChI=1S/C15H15N3S.ClH/c1-9-6-13-15(8-11(9)16)19-14-7-10(18(2)3)4-5-12(14)17-13;/h4-8,16H,1-3H3;1H |
| PubChem CID | 7083 |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 3212900 |
| Tariff Code | 3212900000 |
Safety & GHS
Precautionary statements
- P264 Wash thoroughly after handling
- P280 Wear protective gloves/protective clothing/eye protection/face protection
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
- Basic Blue 17
- Blutene chloride
- C.I. Basic Blue 17
- Gabilin
- Klot
- Menodin
- Tolazul
- TOLONIUM CHLORIDE
- Toluidine Blue O
- Toluidine Blue OO
Frequently asked questions
What is Toluidine Blue Powder C.I. 50240 used for?
It is primarily used as a biological stain in histology and cytology for staining nucleic acids and certain cellular components.
What is the chemical formula and molecular weight of Toluidine Blue Powder C.I. 50240?
The formula is C15H16ClN3S with a molecular weight of 305.83 g/mol.
How should Toluidine Blue Powder C.I. 50240 be stored?
It should be stored at ambient temperature, protected from light and moisture.
What grade is available for Toluidine Blue Powder C.I. 50240?
Available in analytical grade for laboratory use.
Can Molekula supply Toluidine Blue Powder C.I. 50240 in bulk?
Yes, Molekula can supply this product in bulk quantities—please contact our sales team for pricing and availability.
What documentation comes with an order of Toluidine Blue Powder C.I. 50240?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS) 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.