- Chemical Name (2R-trans)-2-[3,4-bis(phenylmethoxy)phenyl]-3,4-dihydro-3-methoxy-5,7-bis(phenylmethoxy)-2H-1-benzopyran
- CAS No. 20728-75-0
- Contact Us Inquiry
Buy Quality (2R-trans)-2-[3,4-bis(phenylmethoxy)phenyl]-3,4-dihydro-3-methoxy-5,7-bis(phenylmethoxy)-2H-1-benzopyran 20728-75-0 In Stock with Immediately Delivery
- Molecular Formula: C44H40O6
- Molecular Weight: 664.798
- Vapor Pressure: 2.21E-24mmHg at 25°C
- Boiling Point: 796.5°Cat760mmHg
- Flash Point: 293.4°C
- PSA： 55.38000
- Density: 1.25g/cm3
- LogP: 9.69380
(2R-trans)-2-[3,4-bis(phenylmethoxy)phenyl]-3,4-dihydro-3-methoxy-5,7-bis(phenylmethoxy)-2H-1-benzopyran(Cas 20728-75-0) Usage
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General Description |
The chemical compound "(2R-trans)-2-[3,4-bis(phenylmethoxy)phenyl]-3,4-dihydro-3-methoxy-5,7-bis(phenylmethoxy)-2H-1-benzopyran," also known as trans-Rose Bengal, is a synthetic dye and a derivative of rose bengal. It is commonly used as a staining agent in medical and biological research, particularly in ophthalmology to identify damaged eye cells. Rose Bengal is also being investigated for its potential use in photodynamic therapy for cancer treatment. It is a photoactivatable compound, meaning that it can become toxic upon exposure to light, and is being studied for its applications in targeted cancer therapy and antimicrobial applications. Rose Bengal is also used in various industrial processes, such as in the production of colorants and as a stain in histology. |
InChI:InChI=1/C44H40O6/c1-45-43-27-38-40(48-30-34-18-10-4-11-19-34)25-37(46-28-32-14-6-2-7-15-32)26-41(38)50-44(43)36-22-23-39(47-29-33-16-8-3-9-17-33)42(24-36)49-31-35-20-12-5-13-21-35/h2-26,43-44H,27-31H2,1H3/t43-,44+/m0/s1
20728-75-0 Relevant articles
FLAVONOID COMPOUNDS
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Paragraph 0386-0391, (2014/09/29)
The present invention relates to compoun...
20728-75-0 Process route
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(±)-5,7,3’,4’-tetra-O-benzyl-epicatechin
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74-88-4
methyl iodide
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20728-75-0
C44 H40 O6
| Conditions | Yield |
|---|---|
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(±)-5,7,3’,4’-tetra-O-benzyl-epicatechin;
With
sodium hydride;
In
N,N-dimethyl-formamide;
at 0 ℃;
for 1h;
Inert atmosphere;
methyl iodide;
In
N,N-dimethyl-formamide;
at 0 - 25 ℃;
Inert atmosphere;
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154-23-4,490-46-0,7295-85-4,13392-26-2,17334-50-8,18829-70-4,35323-91-2,72690-97-2
(+/-)-epicatechin
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20728-75-0
C44 H40 O6
| Conditions | Yield |
|---|---|
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Multi-step reaction
with
2
steps
1.1: potassium carbonate / N,N-dimethyl-formamide / 0.25 h / 0 °C / Inert atmosphere
1.2: 0 - 25 °C
2.1: sodium hydride / N,N-dimethyl-formamide / 1 h / 0 °C / Inert atmosphere
2.2: 0 - 25 °C / Inert atmosphere
With
sodium hydride; potassium carbonate;
In
N,N-dimethyl-formamide;
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20728-75-0 Upstream products
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74-88-4
methyl iodide
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154-23-4
(+/-)-epicatechin
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100-39-0
benzyl bromide
20728-75-0 Downstream products
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65350-86-9
(2R,3R)-2-(3,4-dihydroxyphenyl)-3-methoxychroman-5,7-diol