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CAS

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20283-46-9

2-(3,4,5-trihydroxyphenyl)-3,4-dihydro-2H-chromene-3,4,5,7-tetrol is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

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  • 20283-46-9 Structure

  • Basic information

    1. Product Name: 2-(3,4,5-trihydroxyphenyl)-3,4-dihydro-2H-chromene-3,4,5,7-tetrol
    2. Synonyms:
    3. CAS NO:20283-46-9
    4. Molecular Formula: C15H14O8
    5. Molecular Weight: 322.2669
    6. EINECS: N/A
    7. Product Categories: N/A
    8. Mol File: 20283-46-9.mol

  • Chemical Properties

    1. Melting Point: N/A
    2. Boiling Point: 634°C at 760 mmHg
    3. Flash Point: 337.2°C
    4. Appearance: N/A
    5. Density: 1.814g/cm3
    6. Vapor Pressure: 6.04E-17mmHg at 25°C
    7. Refractive Index: 1.816
    8. Storage Temp.: N/A
    9. Solubility: N/A
    10. CAS DataBase Reference: 2-(3,4,5-trihydroxyphenyl)-3,4-dihydro-2H-chromene-3,4,5,7-tetrol(CAS DataBase Reference)
    11. NIST Chemistry Reference: 2-(3,4,5-trihydroxyphenyl)-3,4-dihydro-2H-chromene-3,4,5,7-tetrol(20283-46-9)
    12. EPA Substance Registry System: 2-(3,4,5-trihydroxyphenyl)-3,4-dihydro-2H-chromene-3,4,5,7-tetrol(20283-46-9)

  • Safety Data

    1. Hazard Codes: N/A
    2. Statements: N/A
    3. Safety Statements: N/A
    4. WGK Germany:
    5. RTECS:
    6. HazardClass: N/A
    7. PackingGroup: N/A
    8. Hazardous Substances Data: 20283-46-9(Hazardous Substances Data)

20283-46-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 20283-46-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,2,8 and 3 respectively; the second part has 2 digits, 4 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 20283-46:
(7*2)+(6*0)+(5*2)+(4*8)+(3*3)+(2*4)+(1*6)=79
79 % 10 = 9
So 20283-46-9 is a valid CAS Registry Number.

20283-46-9Relevant articles and documents

Stereoselective oxidation at C-4 of flavans by the endophytic fungus Diaporthe sp. isolated from a tea plant

Agusta, Andria,Maehara, Shoji,Ohashi, Kazuyoshi,Simanjuntak, Partomuan,Shibuya, Hirotaka

, p. 1565 - 1569 (2007/10/03)

The microbial transformation of five flavans (1-5) by endophytic fungi isolated from the tea plant Camellia sinensis was investigated. It was found that the endophytic filamentous fungus Diaporthe sp. oxidized stereoselectively at C-4 position of (+)-catechin (1) and (-)-epicatechin (2) to give the correspondent 3,4-cis-dihydroxyflavan derivatives (6, 10), respectively. (-)-Epicatechin 3-O-gallate (3) and (-)-epigallocatechin 3-O-gallate (4) were also oxidized by the fungus into 3,4-dihydroxyflavan derivatives (10, 12) via (-)-epicatechin (2) and (-)-epigallocatechin (11), respectively. Meanwhile, (-)-gallocatechin 3-O-gallate (5), (-)-catechin (ent-1) and (+)-epicatechin (ent-2), which possess a 2S-phenyl substitution, resisted the biotransformation.

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