Molekula
Azure B, certified (C.I. 52010) (Azure l)
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
Azure B (C.I. 52010) is a synthetic phenothiazine (thiazine) dye, a demethylated relative of methylene blue, used primarily in biological staining, microscopy, and as a pH indicator. It imparts a blue color to tissues and solutions, aiding in cellular visualization. This certified grade chemical has a CAS number of 531-55-5, molecular formula C15H16ClN3S, and a molecular weight of 305.83. It is stored at ambient conditions, with a signal word of Warning indicating moderate hazard. Molekula supplies Azure B 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 — $86.00 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 | Dark green powder |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Base |
Identification
| Property | Value |
|---|---|
| SKU | 16453505 |
| CAS Number | 531-55-5 |
| IUPAC Name | dimethyl-[7-(methylamino)phenothiazin-3-ylidene]azanium chloride |
| EC Number | 208-511-2 |
| Molecular Formula | C15H16ClN3S |
| Molecular Weight | 305.83 |
| Exact Mass | 305.0753 |
| SMILES | CNC1=CC2=C(C=C1)N=C3C=CC(=[N+](C)C)C=C3S2.[Cl-] |
| InChIKey | DNDJEIWCTMMZBX-UHFFFAOYSA-N |
| InChI | InChI=1S/C15H15N3S.ClH/c1-16-10-4-6-12-14(8-10)19-15-9-11(18(2)3)5-7-13(15)17-12;/h4-9H,1-3H3;1H |
| PubChem CID | 68275 |
| REACH Code | Y110 |
| 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
- P270 Do not eat, drink or smoke when using this product
- 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, 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
- 3-(Dimethylamino)-7-(methylamino)phenothiazin-5-ium chloride
- AZUR B
- AZUR I
- Azure B
- Azure B (chloride)
- Azure I
- C.I. 52010
- Methylene azure B
- N,N-Dimethyl-7-(methylamino)-3H-phenothiazin-3-iminium chloride
- Trimethylthionine chloride
Frequently asked questions
What is Azure B certified (C.I. 52010) used for?
Azure B is primarily used as a dye in biological staining, particularly as a basic, metachromatic stain for nuclei and nucleic acids (DNA and RNA) and as a component of Romanowsky-type azure-eosin blood smear stains such as Giemsa and Wright, and in some histological applications.
What is the chemical formula and molecular weight of Azure B?
The chemical formula is C15H16ClN3S, and the molecular weight is 305.83 g/mol.
How should Azure B be stored?
Store Azure B at ambient temperature in a dry, well-ventilated area, away from direct sunlight and incompatible substances.
What grade of Azure B does Molekula supply?
Molekula supplies certified-grade Azure B (C.I. 52010), suitable for high-purity applications like biological staining.
Can Molekula supply Azure B in bulk quantities?
Yes, Molekula can supply Azure B in bulk, with quantities tailored to your specific research or industrial needs.
What documentation comes with an order of Azure B?
Each order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), and batch-specific documentation for traceability.
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.