Molekula
Nile Blue A
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
Nile Blue A is a cationic benzo[a]phenoxazinium (oxazine) dye used in fluorescence microscopy, staining biological tissues, and as a redox indicator in electrochemistry. It is available in powder form with a molecular weight of 732.85 g/mol, a molecular formula of 2C20H20N3O · SO4, and a CAS number of 3625-57-8. Stored at ambient temperature, it requires no signal word. Molekula supplies Nile Blue A 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 — $56.50 per pack
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25 g — $209.00 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 | Solid |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | Not regulated |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 90034027 |
| CAS Number | 3625-57-8 |
| IUPAC Name | bis((5-aminobenzo[a]phenoxazin-9-ylidene)-diethylazanium);sulfate |
| EC Number | 222-832-5 |
| Molecular Formula | C40H40N6O6S |
| Molecular Weight | 732.85 |
| Exact Mass | 732.273 |
| SMILES | CC[N+](=C1C=CC2=NC3=C(C=C(C4=CC=CC=C43)N)OC2=C1)CC.CC[N+](=C1C=CC2=NC3=C(C=C(C4=CC=CC=C43)N)OC2=C1)CC.[O-]S(=O)(=O)[O-] |
| InChIKey | QIRDPEPUXNCOLD-UHFFFAOYSA-N |
| InChI | InChI=1S/2C20H19N3O.H2O4S/c2*1-3-23(4-2)13-9-10-17-18(11-13)24-19-12-16(21)14-7-5-6-8-15(14)20(19)22-17;1-5(2,3)4/h2*5-12,21H,3-4H2,1-2H3;(H2,1,2,3,4) |
| PubChem CID | 19256 |
| REACH Code | Y113 |
| HTS Code | 3212.90.0050 |
| Tariff Code | 3212900000 |
Safety & GHS
Precautionary statements
- P280 Wear protective gloves/protective clothing/eye protection/face protection
Documents
Safety Data Sheets (SDS)
Available in English, German, Spanish, French, Italian, Portuguese, Arabic, Dutch.
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
- (5-aminobenzo[a]phenoxazin-9-ylidene)-diethylazanium;sulfate
- 5-Amino-9-(diethylamino)benzo[a]phenoxazin-7-ium sulfate
- 5-Amino-9-(diethylamino)benzo[a]phenoxazinium sulfate
- Basic Blue 12
- Benzo[a]phenoxazin-7-ium, 5-amino-9-(diethylamino)-, sulfate (2:1)
- Nile blue
- Nile blue A (Technical Grade)
- Nile Blue A Solution
- Nile Blue A sulfate
- Nile Blue sulfate
Frequently asked questions
What is Nile Blue A used for?
Nile Blue A is primarily used as a fluorescent dye in biological staining and spectroscopy applications.
What is the chemical formula and molecular weight of Nile Blue A?
The formula is 2C20H20N3O · SO4 with a molecular weight of 732.85 g/mol.
How should Nile Blue A be stored?
It should be stored at ambient temperature, protected from light and moisture.
What grade of Nile Blue A is available?
Molekula supplies Nile Blue A in analytical grade.
Can Molekula supply Nile Blue A in bulk?
Yes, Molekula can supply Nile Blue A in bulk quantities upon request.
What documentation comes with a purchase of Nile Blue A?
Each order includes a Certificate of Analysis and Safety Data Sheet (SDS).
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.