EOSIN
- Product Name
- EOSIN
- CAS No.
- 17372-87-1
- Chemical Name
- EOSIN
- Synonyms
- Acid Red 87;Esoin Y;Eosin Y Na;AMI-5;RED 22;eosina;RED 21 LAKE;EOSIN Y DISODIUM;May-Grünwald Stain;MAY-GRUNWALD STAIN
- CBNumber
- CB9461211
- Molecular Formula
- C20H6Br4Na2O5
- Formula Weight
- 691.85418
- MOL File
- 17372-87-1.mol
EOSIN Property
- Melting point:
- >300°C
- Density
- 1.02 g/mL at 20 °C
- vapor pressure
- 0Pa at 25℃
- Flash point:
- 11 °C
- storage temp.
- Store at RT.
- solubility
- H2O: 0.1 g/mL, dark red
- Colour Index
- 45380
- pka
- 2.9, 4.5(at 25℃)
- form
- Solid
- color
- Reddish
- PH
- 9.2 (10g/l, H2O, 20℃)
- PH Range
- 0(yellow)-3(green fluoresc.)
- Water Solubility
- freely soluble
- λmax
- 514nm
- Merck
- 14,3603
- BRN
- 3586809
- Stability:
- Stable. Incompatible with strong oxidizing agents.
- Biological Applications
- Treating age-related macular degeneration,burns,cancer,diabetes,obesity,dental bone defects,gastroesophageal reflux disease,prostate cancer,viral diseases; stents; wound-healing materials
- Major Application
- Photovoltaic devices, color filter, nanoscale host material, detection of latent fingerprints, inks, detergents, hair dyes, cosmetics, implantable drug delivery devices, stents, diagnosis of breast lesions, labeling nucleic acids, detecting proteins, stress biomarkers, phosphoprotein, breast cancer metastases, antimicrobial agent, treatment of burns, endodontic, diabetes, obesity, cancer, radiochemotherapy, DNA sequencing, gene expression profiling, wound healing promoters
- LogP
- -1.33
- CAS DataBase Reference
- 17372-87-1(CAS DataBase Reference)
- EPA Substance Registry System
- Eosin Yellowish (YS) (17372-87-1)
Safety
- Hazard Codes
- F,T,Xn,Xi
- Risk Statements
- 11-23/24/25-39/23/24/25-52/53-41-22-36-10
- Safety Statements
- 7-16-36/37-45-24/25-61-39-26
- RIDADR
- UN 1230 3/PG 2
- WGK Germany
- 1
- RTECS
- LM5850000
- TSCA
- Yes
- HS Code
- 32041200
- Toxicity
- LD50 orally in Rabbit: > 2000 mg/kg
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H302Harmful if swallowed
H317May cause an allergic skin reaction
H319Causes serious eye irritation
- Precautionary statements
-
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P264Wash hands thoroughly after handling.
P264Wash skin thouroughly after handling.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.
P302+P352IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
N-Bromosuccinimide Price
- Product number
- 318906
- Product name
- Eosin Y solution
- Purity
- 5wt. % in H
- Packaging
- 500ml
- Price
- $98.2
- Updated
- 2024/03/01
- Product number
- 205435
- Product name
- May-Grünwald Stain
- Packaging
- 25g
- Price
- $132
- Updated
- 2024/03/01
- Product number
- 1.15935
- Product name
- Eosin Y (yellowish) (C.I. 45380)
- Purity
- for microscopy Certistain?
- Packaging
- 100g
- Price
- $400
- Updated
- 2023/06/20
- Product number
- 200-M
- Product name
- Eosin Y Powder
- Packaging
- 25g
- Price
- $100
- Updated
- 2023/01/07
- Product number
- 200-M
- Product name
- Eosin Y Powder
- Packaging
- 100g
- Price
- $187
- Updated
- 2023/01/07
EOSIN Chemical Properties,Usage,Production
Chemical Properties
brownish-red powder
Uses
Eosin is most often used as a counterstain to haematoxylin in H&E (haematoxylin and eosin) staining. H&E staining is one of the most commonly used techniques in histology.
Uses
Anti Septic
Uses
Eosin Yellowish noted to reduce the affinity of Mg2+-ATPase for ATP and increase the enzyme affinity for Mg2+ at concentrations of 10-50 ?M. At higher concentrations near 100 ?M the affinity for Mg2+-ATPase for the ion-activator has been shown to be reduced. This compound has also been reported to be a photosensitizer that works as a molecular photoelectrode via catalyzation of the visible-light-driven electron-transfer reaction. Eosin Y is also used to stain structures such as muscle, cytoplasm, and collagen. This agent also enhances fluorescent quenching abilities by forming a complex with polyvinulpyrrolidone.
Preparation
countries called red. Fluorescent element (C.I. Acid Yellow 73, C.I. 45350) in water or ethanol solution bromine into four bromine derivatives, and then into sodium salt.
Definition
ChEBI: An organic sodium salt that is 2',4',5',7'-tetrabromofluorescein in which the carboxy group and the phenolic hydroxy group have been deprotonated and the resulting charge is neutralised by two sodium ions.
Flammability and Explosibility
Not classified
Biological Activity
ami5/eosin y disodium salt is a non-selective protein methyltransferase inhibitor.post-translational protein methylation at lysine and arginine residues is related to the gene expression regulation. the enzymatic activities of protein methyltransferases serve to do covalent modifications in the control of gene transcription.
Safety Profile
Poison by intravenous and intraperitoneal routes. Moderately toxic by ingestion. Questionable carcinogen with experimental tumorigenic data. When heated to decomposition it emits very toxic fumes of Brand NazO. See also BROMIDES.
in vitro
ami5/eosin y disodium salt has been identified as a competitive inhibitor of sam binding and had been shown to inhibit not only prmts but also lysine methylation by the set7 and disruptor of telomeric silencing 1-like (dot1l) mtases in vitro. both ami5/eosin y disodium salt and its analog ami-1 have been used as lead compounds for the development of novel mtase-specific inhibitors. moreover, it was found that ami5/eosin y disodium salt could inhibit set7 in vitro and decrease h3k4m1 in vascular endothelial cells. [1].
IC 50
0.78 and 1.41 μm for hmt1p and prmt1, respectively
storage
+4°C
Purification Methods
Dissolve it in the minimum volume of H2O (1g/mL), filter and add EtOH until separation of salt is complete. Filter the solid off, wash it with absolute EtOH, then Et2O and dry it first in air, then at 100o. It is used for staining blood cells and for estimating traces of Ag. [Selsted & Becker Anal Biochem 155 270 1986, El-Ghamry & Frei Anal Chem 40 1986 1968.] [Beilstein 19 III/IV 2917.] [See above]
Properties and Applications
yellow peach. Orange powder, soluble in water and ethanol with fluorescent blue light is yellowish red solution. Meet strong sulfuric acid yellow, it will be diluted yellow light red precipitate generated. Dyeing copper ions in the blue colour and lustre; Iron ion colour and lustre in the dark blue. Discharge the gender is good. Mainly used in red ink and red pencils, only comfortable carpet dyeing. After refining can be used as medicine and cosmetics of coloring. Can also be used in leather dyeing. The aluminum salt can be used as organic pigments.
| Standard | Light Fastness | Soaping | Persperation Fastness | Oxygen bleaching | Fastness to seawater | |||
| Fading | Stain | Fading | Stain | Fading | Stain | |||
| ISO | 2 | 3 | 3 | 2 | 1 | 2 | 2 | 2 |
| AATCC | 1 | 2 | 2 | 3 | 1 | 1 | 3 | 3 |
References
[1] okabe j,fernandez az,ziemann m,keating st,balcerczyk a,el-osta a. endothelial transcriptome in response to pharmacological methyltransferase inhibition. chemmedchem.2014 aug;9(8):1755-62.
EOSIN Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from EOSIN manufacturers
- Product
- EOSIN 17372-87-1
- Price
- US $82.00/kg
- Min. Order
- 100kg
- Purity
- 99.99%
- Supply Ability
- 100Tons
- Release date
- 2023-03-08
- Product
- EOSIN 17372-87-1
- Price
- US $6.00/KG
- Min. Order
- 1KG
- Purity
- More than 99%
- Supply Ability
- 2000KG/MONTH
- Release date
- 2024-04-23
- Product
- EOSIN 17372-87-1
- Price
- US $8.00/kg
- Min. Order
- 1kg
- Purity
- 99%
- Supply Ability
- 200000
- Release date
- 2024-01-03