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CAS

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1203550-44-0

(2R,3R)-5,7,5,7-tetra-O-(2-nitrobenzenesulfonyl)neotheaflavin is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

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  • 1203550-44-0 Structure

  • Basic information

    1. Product Name: (2R,3R)-5,7,5,7-tetra-O-(2-nitrobenzenesulfonyl)neotheaflavin
    2. Synonyms: (2R,3R)-5,7,5,7-tetra-O-(2-nitrobenzenesulfonyl)neotheaflavin
    3. CAS NO:1203550-44-0
    4. Molecular Formula:
    5. Molecular Weight: 1305.14
    6. EINECS: N/A
    7. Product Categories: N/A
    8. Mol File: 1203550-44-0.mol

  • Chemical Properties

    1. Melting Point: N/A
    2. Boiling Point: N/A
    3. Flash Point: N/A
    4. Appearance: N/A
    5. Density: N/A
    6. Refractive Index: N/A
    7. Storage Temp.: N/A
    8. Solubility: N/A
    9. CAS DataBase Reference: (2R,3R)-5,7,5,7-tetra-O-(2-nitrobenzenesulfonyl)neotheaflavin(CAS DataBase Reference)
    10. NIST Chemistry Reference: (2R,3R)-5,7,5,7-tetra-O-(2-nitrobenzenesulfonyl)neotheaflavin(1203550-44-0)
    11. EPA Substance Registry System: (2R,3R)-5,7,5,7-tetra-O-(2-nitrobenzenesulfonyl)neotheaflavin(1203550-44-0)

  • 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: 1203550-44-0(Hazardous Substances Data)

1203550-44-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1203550-44-0 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,0,3,5,5 and 0 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1203550-44:
(9*1)+(8*2)+(7*0)+(6*3)+(5*5)+(4*5)+(3*0)+(2*4)+(1*4)=100
100 % 10 = 0
So 1203550-44-0 is a valid CAS Registry Number.

1203550-44-0Downstream Products

1203550-44-0Relevant articles and documents

Synthesis of Theaflavins via Biomimetic Oxidative Coupling Reactions

Kawabe, Yusuke,Aihara, Yoshiyuki,Hirose, Yoshitsugu,Sakurada, Asuka,Yoshida, Atsushi,Inai, Makoto,Asakawa, Tomohiro,Hamashima, Yoshitaka,Kan, Toshiyuki

supporting information, p. 479 - 482 (2013/04/10)

Biomimetic synthesis of theaflavins from catechins was accomplished by using 2-nitrobenzenesulfonyl (Ns) as a protecting group for phenols to minimize undesired side reactions of the electron-rich aromatic rings. This enabled the construction of the complex benzotropolone core in a single-step oxidative coupling reaction. Georg Thieme Verlag Stuttgart · New York.

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