Azure B
- CAS No.
- 531-55-5
- Chemical Name:
- Azure B
- Synonyms
- Azwe I;AZUR I;AZURE B;AZURE I;Azure Ⅰ;CI 52010;Azur I (B);Tianqing I;CI NO 52010;Azur - 1(B)
- CBNumber:
- CB2744643
- Molecular Formula:
- C15H16ClN3S
- Molecular Weight:
- 305.82
- MDL Number:
- MFCD00011935
- MOL File:
- 531-55-5.mol
- MSDS File:
- SDS
| Product description | Number | Pack Size | Price |
| Azure B Pharmaceutical Secondary Standard; Certified Reference Material | PHR2484 | 100MG | $545.3 |
| Azure B United States Pharmacopeia (USP) Reference Standard | 1046351 | 50mg | $1360 |
| Azure B prepared by direct synthesis | 227935 | 5g | $144 |
| Azure B certified by the Biological Stain Commission | A4043 | 5g | $118 |
| Azure B certified by the Biological Stain Commission | A4043 | 25g | $362 |
| More product size | |||
| Melting point | 205-210 °C (dec.)(lit.) |
|---|---|
| storage temp. | -20°C Freezer |
| solubility | H2O: soluble1mg/mL |
| Colour Index | 52010 |
| form | Powder |
| color | Dark green |
| Water Solubility | Soluble |
| ε(extinction coefficient) |
≥13000 at 241-247nm ≥36000 at 287-293nm ≥67000 at 638-644nm |
| λmax | 648–655 nm |
| Merck | 14,6058 |
| BRN | 3922630 |
| Stability | Stable. Incompatible with strong oxidizing agents. |
| Major Application |
diagnostic assay manufacturing hematology histology |
| Biological Applications | Antimalarial; biofuel cell; medical devices; diagnosis of amyloid accumulation related diseases,diabetes,malignant melanoma; detecting oral cancer,cells,nucleic acids; treating avian influenza virus,nail infection,oral cavity infection |
| 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 |
| InChIKey | DNDJEIWCTMMZBX-UHFFFAOYSA-N |
| SMILES | C[N+](C)=C(C=C1)C=C(C1=N2)SC3=C2C=CC(NC)=C3.[Cl-] |
| CAS DataBase Reference | 531-55-5(CAS DataBase Reference) |
| FDA UNII | 7C8BEL8WQV |
| UNSPSC Code | 41116107 |
| NACRES | NA.47 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H302 | |||||||||
| Precautionary statements | P301+P312+P330 | |||||||||
| PPE | Eyeshields, Gloves, type N95 (US) | |||||||||
| Safety Statements | 22-24/25 | |||||||||
| WGK Germany | 3 | |||||||||
| RTECS | SO5550000 | |||||||||
| HS Code | 32129000 | |||||||||
| Storage Class | 11 - Combustible Solids | |||||||||
| Hazard Classifications | Acute Tox. 4 Oral | |||||||||
| NFPA 704 |
|
Azure B price More Price(34)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | PHR2484 | Azure B Pharmaceutical Secondary Standard; Certified Reference Material | 531-55-5 | 100MG | $545.3 | 2025-07-31 | Buy |
| Sigma-Aldrich | 1046351 | Azure B United States Pharmacopeia (USP) Reference Standard | 531-55-5 | 50mg | $1360 | 2025-07-31 | Buy |
| Sigma-Aldrich | 227935 | Azure B prepared by direct synthesis | 531-55-5 | 5g | $144 | 2023-06-20 | Buy |
| Sigma-Aldrich | A4043 | Azure B certified by the Biological Stain Commission | 531-55-5 | 5g | $118 | 2025-07-31 | Buy |
| Sigma-Aldrich | A4043 | Azure B certified by the Biological Stain Commission | 531-55-5 | 25g | $362 | 2025-07-31 | Buy |
Azure B Chemical Properties,Uses,Production
Chemical Properties
green crystalline powder
Uses
Used for staining reticulocytes. Azure B is used for preparing azure eosin stains for blood smears.
Uses
Biological stain.
Uses
Azure B is used for staining semi-thin sections of plant tissue. This dye is also useful in the NCCLS method for blood smears and Lillie's modified Nocht's method for paraffin sections.
Definition
ChEBI: An organic chloride salt having 3-(dimethylamino)-7-(methylamino)phenothiazin-5-ium as the counterion. It is used in making azure eosin stains for blood smear staining and is an active metabolite of methylene blue.
Biochem/physiol Actions
Azure B is a cationic dye. It is part of the Romanowsky stain, which is used for staining of blood films. It is also used for the localization of nucleic acids and lignin.
Purification Methods
Azure B has been twice recrystallised from H2O and dried at 100o/1hour in an oven. [Beilstein 27 III/IV 5151.]
Azure B Preparation Products And Raw materials
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Hebei Chuanghai Biotechnology Co., Ltd | +8615531151365 | mina@chuanghaibio.com | China | 18126 | 58 |
| Henan Fengda Chemical Co., Ltd | +86-371-86557731 +86-13613820652 | info@fdachem.com | China | 20129 | 58 |
| career henan chemical co | +86-0371-86658258 +8613203830695 | sales@coreychem.com | China | 29833 | 58 |
| Hubei xin bonus chemical co. LTD | 86-13657291602 | linda@hubeijusheng.com | CHINA | 22963 | 58 |
| Shenyang Simchoice Chemical Co.,Ltd | +86-024-23769576 +86-15040101888 | sales@simchoicechem.com | China | 254 | 58 |
| CONIER CHEM AND PHARMA LIMITED | +8618523575427 | sales@conier.com | China | 49977 | 58 |
| Shaanxi Dideu Medichem Co. Ltd | +86-29-87569266 +86-17392581500 | 1015@dideu.com | China | 3987 | 58 |
| Antai Fine Chemical Technology Co.,Limited | 18503026267 | info@antaichem.com | CHINA | 9636 | 58 |
| TargetMol Chemicals Inc. | +1-781-999-5354; +17819995354 | marketing@targetmol.com | United States | 32470 | 58 |
| Hefei TNJ Chemical Industry Co.,Ltd. | +86-0551-65418671 +8618949823763 | sales@tnjchem.com | China | 34563 | 58 |
View Lastest Price from Azure B manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-01-05 | Azure B
531-55-5
|
US $128.00-393.00 / mg | 10g | TargetMol Chemicals Inc. | |||
 |
2025-09-25 | Azure B
531-55-5
|
US $0.00-0.00 / KG | 1KG | 98% | kg-tons | Henan Fengda Chemical Co., Ltd | |
 |
2025-06-27 | Azure B
531-55-5
|
US $0.00-0.00 / KG | 1KG | 99% | 500000kg | Hebei Chuanghai Biotechnology Co., Ltd |
