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128683-43-2

2-methyl-6-(5-acetamido-3,5-dideoxy-alpha-glycero-galacto-nonulopyranosylonic acid)xanthene-9-spiro-1'-isobenzofuran-3'-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

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  • 2-Methyl-6-(5-acetamido-3,5-dideoxy-alpha-glycero-galacto-nonulopyranosylonic acid)xanthene-9-spiro-1-isobenzofuran-3-one

    Cas No: 128683-43-2

  • USD $ 100.0-100.0 / Gram

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  • 2-methyl-6-(5-acetamido-3,5-dideoxy-alpha-glycero-galacto-nonulopyranosylonic acid)xanthene-9-spiro-1'-isobenzofuran-3'-one

    Cas No: 128683-43-2

  • USD $ 1.9-2.9 / Gram

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  • 5-(4-fluorophenoxy)-9-(4-hydroxy-3,5-dimethoxyphenyl)-5a,6,8a,9-tetrahydro-5H-[2]benzofuro[5,6-f][1,3]benzodioxol-8-one

    Cas No: 128683-43-2

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  • 128683-43-2 Structure

  • Basic information

    1. Product Name: 2-methyl-6-(5-acetamido-3,5-dideoxy-alpha-glycero-galacto-nonulopyranosylonic acid)xanthene-9-spiro-1'-isobenzofuran-3'-one
    2. Synonyms: 2-methyl-6-(5-acetamido-3,5-dideoxy-alpha-glycero-galacto-nonulopyranosylonic acid)xanthene-9-spiro-1'-isobenzofuran-3'-one
    3. CAS NO:128683-43-2
    4. Molecular Formula: C32H31NO12
    5. Molecular Weight: 621.58804
    6. EINECS: N/A
    7. Product Categories: N/A
    8. Mol File: 128683-43-2.mol

  • Chemical Properties

    1. Melting Point: N/A
    2. Boiling Point: 1029.1°Cat760mmHg
    3. Flash Point: 576.2°C
    4. Appearance: /
    5. Density: 1.59g/cm3
    6. Refractive Index: N/A
    7. Storage Temp.: N/A
    8. Solubility: N/A
    9. CAS DataBase Reference: 2-methyl-6-(5-acetamido-3,5-dideoxy-alpha-glycero-galacto-nonulopyranosylonic acid)xanthene-9-spiro-1'-isobenzofuran-3'-one(CAS DataBase Reference)
    10. NIST Chemistry Reference: 2-methyl-6-(5-acetamido-3,5-dideoxy-alpha-glycero-galacto-nonulopyranosylonic acid)xanthene-9-spiro-1'-isobenzofuran-3'-one(128683-43-2)
    11. EPA Substance Registry System: 2-methyl-6-(5-acetamido-3,5-dideoxy-alpha-glycero-galacto-nonulopyranosylonic acid)xanthene-9-spiro-1'-isobenzofuran-3'-one(128683-43-2)

  • 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: 128683-43-2(Hazardous Substances Data)

128683-43-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 128683-43-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,6,8 and 3 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 128683-43:
(8*1)+(7*2)+(6*8)+(5*6)+(4*8)+(3*3)+(2*4)+(1*3)=152
152 % 10 = 2
So 128683-43-2 is a valid CAS Registry Number.

128683-43-2SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 18, 2017

Revision Date: Aug 18, 2017

1.Identification

1.1 GHS Product identifier

Product name 5-(4-fluorophenoxy)-9-(4-hydroxy-3,5-dimethoxyphenyl)-5a,6,8a,9-tetrahydro-5H-[2]benzofuro[5,6-f][1,3]benzodioxol-8-one

1.2 Other means of identification

Product number -
Other names -

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:128683-43-2 SDS

128683-43-2Downstream Products

128683-43-2Relevant articles and documents

PHASE-TRANSFER-CATALYZED SYNTHESIS OF ARYL α-KETOSIDES OF N-ACETYLNEURAMINIC ACID. A 2-METHYLFLUORAN-6-YL GLYCOSIDE OF N-ACETYLNEURAMINIC ACID, 2-METHYL-6-(5-ACETAMIDO-3,5-DIDEOXY-α-D-glycero-D-galacto-NONULOPYRANOSYLONIC ACID)XANTHENE-9-SPIRO-1'-ISOBENZOFURAN-3'-ONE, A NEW SUBSTRATE..

Rothermel, Joerg,Faillard, Hans

, p. 29 - 40 (2007/10/02)

Glycosidation of N-acetylneuraminic acid by phase-transfer catalysis in chloroform-aqueous alkali gave several known and some new aryl α-ketosides in a short reaction time and in good yields.The 4-methylumbelliferyl α-ketoside, the standard substrate for neuraminidase, was prepared in a yield of up to 70percent.New Neu5Ac ketosides were prepared with fluorescein and the fluorescein analog, 2-methyl-6-hydroxyfluoran (2-methyl-6-hydroxyxanthene-9-spiro-1'-isobenzofuran-3'-one) as aglycons, the latter being synthesized from 2-(2-hydroxy-5-methylbenzoyl) benzoic acid and 3-fluorophenol.The α configuration was ascertained by 400-MHz 1H-NMR spectroscopy and by cleavage of the ketosides with neuraminidases from Vibrio cholerae and Clostridium perfringens.The enzymic hydrolysis of the 2-methylfluoran-6-yl ketoside gave Km values of 82 μM (V. cholerae) and 96 μM (C. perfringens).

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