Janus Green B
- CAS No.
- 2869-83-2
- Chemical Name:
- Janus Green B
- Synonyms
- JGB;Janu;CI 11050;NSC13986;KJEL-SORB;NSC 13986;NSC-13986;JANUS GREEN;CI NO 11050;OPTIBOR(TM)
- CBNumber:
- CB5853432
- Molecular Formula:
- C30H31ClN6
- Molecular Weight:
- 511.07
- MDL Number:
- MFCD00011758
- MOL File:
- 2869-83-2.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Melting point | 160 °C (dec.)(lit.) |
|---|---|
| vapor pressure | 2.6 mm Hg ( 20 °C) |
| storage temp. | 2-8°C |
| solubility | H2O: 1 M hot, clear, colorless |
| Colour Index | 11050 |
| form | Powder |
| color | ≤10(APHA) |
| Water Solubility | Soluble in water (20 mg/ml at 20°C), ethanol, and slightly soluble in alcohol. |
| λmax | 660nm, 395nm |
| ε(extinction coefficient) | ≥28000 at 651-677nm in ethanol: water (1:1) at 0.01g/L |
| Merck | 14,5255 |
| Stability | Stable. Incompatible with strong oxidizing agents. |
| Biological Applications | Antimalarialagents; diagnosis of diseases related to amyloid accumulation; diagnostic assays; detecting fungi; nucleic acids; sugars |
| Major Application |
diagnostic assay manufacturing hematology histology |
| InChIKey | XXACTDWGHQXLGW-UHFFFAOYSA-M |
| SMILES | [Cl-].CCN(CC)c1ccc2nc3ccc(cc3[n+](-c4ccccc4)c2c1)\N=N\c5ccc(cc5)N(C)C |
| CAS DataBase Reference | 2869-83-2(CAS DataBase Reference) |
| FDA UNII | B9KQ101KHX |
| EPA Substance Registry System | Phenazinium, 3-(diethylamino)-7-[[4-(dimethylamino)phenyl]azo]-5-phenyl-, chloride (2869-83-2) |
| UNSPSC Code | 12171500 |
| NACRES | NA.47 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H302-H315-H319-H335 | |||||||||
| Precautionary statements | P261-P305+P351+P338 | |||||||||
| PPE | Eyeshields, Gloves, type N95 (US) | |||||||||
| Hazard Codes | T,Xn | |||||||||
| Risk Statements | 60-40 | |||||||||
| Safety Statements | 22-24/25-36 | |||||||||
| WGK Germany | 3 | |||||||||
| RTECS | SG1633000 | |||||||||
| TSCA | TSCA listed | |||||||||
| HS Code | 32041900 | |||||||||
| Storage Class | 11 - Combustible Solids | |||||||||
| NFPA 704 |
|
Janus Green B price More Price(31)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 201677 | Janus Green B certified by the Biological Stain Commission, Dye content 65% | 2869-83-2 | 5g | $101 | 2026-04-30 | Buy |
| Sigma-Aldrich | 201677 | Janus Green B certified by the Biological Stain Commission, Dye content 65% | 2869-83-2 | 25g | $352 | 2026-04-30 | Buy |
| TCI Chemical | J0002 | Janus Green B | 2869-83-2 | 5g | $41 | 2026-04-30 | Buy |
| TCI Chemical | J0002 | Janus Green B | 2869-83-2 | 25g | $131 | 2026-04-30 | Buy |
| Usbiological | 281047 | Janus green B Asreported | 2869-83-2 | 2g | $333 | 2026-06-03 | Buy |
Janus Green B Chemical Properties, Uses, Production
Chemical Properties
green powder
Uses
As dye for cotton, wool; as biological stain; in electrodeposition of copper, Brown, Fellows, US 2882209 (1959 to Udylite Res. Corp.).
Uses
Janus Green B is a stain that interacts with DNA and has been used for histology studies including mitochondrial staining, in which its oxidation and reduction reveals alterations to the electron transfer chain. The stain has been utilized in studies for effective and rapid staining of insect chordotonal organs and peripheral nerves, where the nerves appear dark blue in comparison to non stained tissue. With the use of Janus Green B, rabbit lymphatic vessel studies demonstrate that threadlike structures within the lymphatic vessels, known as Bonghan ducts, contain a high density of mitochondria in their cells.
Definition
ChEBI: Janus Green B chloride is an organic chloride salt. It has a role as a dye. It contains a Janus Green B cation.
Biological Activity
Janus Green B belongs to the phenazine group of dyes. It is a dark green/dark brown/dark black powder. Janus Green B should be oxidized to become colored. Thus, this dye can be used to specifically stain mitochondria in living cells. It has been used to stain biomolecules, nucleic acids and chromosomes. In addition, it is also used to stain various living organisms including fungi, yeast cell, brain, spinal cord, sperms and tissue culture monolayer. Janus Green B acts as an antimalarial agent. It also facilitates diagnostic assays and diagnosis of disease related to amyloid accumulation.
Safety Profile
Poison by intraperitoneal and intravenous routes. Moderately toxic by ingestion, skin contact, subcutaneous, and intramuscular routes. Human systemic effects by inhalation: nausea or vomiting. A skin and severe eye irritant. Flammable liquid when exposed to heat or flame; can react with oxidizing materials. To fight fire, use alcohol foam, CO2, dry chemical. When heated to decomposition it emits toxic fumes of NOx. See also AMINES.
Purification Methods
The dye dissolves in H2O to give a bluish violet solution which becomes colourless when made 10M in NaOH. It dissolves in EtOH to give a blue-violet colour, filter from insoluble material, then add dry Et2O whereby the dye separates out leaving a small amount of blue colour in solution. Filter off the solid and dry it in a vacuum. Store it in a dark bottle. [Colour Index Vol 4, 3rd edn, 4015 1971.]
Janus Green B Preparation Products And Raw materials
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| NANTONG XINHE BIOTECH CO.,LTD | 13813727166，15370460228; 13813727166 | sale_xinhe@outlook.com | China | 374 | 58 |
| BIOISCO(Lianyungang, Jiangsu) Biotechnology Co., Ltd | 18082049515 | 2757382053@qq.com | China | 2995 | 58 |
| J & K SCIENTIFIC LTD. | 18210857532 18210857532 | jkinfo@jkchemical.com | China | 96815 | 76 |
| Meryer (Shanghai) Chemical Technology Co., Ltd. | 4006356688 18621169109 | market03@meryer.com | China | 40202 | 62 |
| Alfa Aesar | 400-6106006 | saleschina@alfa-asia.com | China | 30103 | 84 |
| TCI (Shanghai) Development Co., Ltd. | 021-67121386 | Sales-CN@TCIchemicals.com | China | 24512 | 81 |
| Beijing HwrkChemical Technology Co., Ltd | 89508211 18501085097 | sales.bj@hwrkchemical.com | China | 9407 | 55 |
| Energy Chemical | 400-0056266 | sales8178@energy-chemical.com | China | 44850 | 61 |
| Shandong Xiya Chemical Co., Ltd | 13355009207 13355009207 | 3007715519@qq.com | China | 18722 | 57 |
| Sichuan Kulinan Technology Co., Ltd | 400-1166-196 18981987031 | cdhxsj@163.com | China | 11674 | 57 |
View Latest Price from Janus Green B manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-08-18 | Janus green B
2869-83-2
|
$39.00 | 10g | TargetMol Chemicals Inc. | |||
 |
2023-07-10 | Janus Green B
2869-83-2
|
$234.00-467.00 | 100g | 99% | 1000kg | Jiangsu Boquan Biotechnology Co., Ltd. | |
 |
2019-07-12 | Janus Green B
2869-83-2
|
$1.00 | 1KG | 99% | 25kg | Career Henan Chemical Co |
-
- Janus green B
2869-83-2
- $39.00
- TargetMol Chemicals Inc.
-
- Janus Green B
2869-83-2
- $234.00-467.00
- 99%
- Jiangsu Boquan Biotechnology Co., Ltd.
-
- Janus Green B
2869-83-2
- $1.00
- 99%
- Career Henan Chemical Co
