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20929-46-8

20929-46-8

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20929-46-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 20929-46-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,9,2 and 9 respectively; the second part has 2 digits, 4 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 20929-46:
(7*2)+(6*0)+(5*9)+(4*2)+(3*9)+(2*4)+(1*6)=108
108 % 10 = 8
So 20929-46-8 is a valid CAS Registry Number.
InChI:InChI=1/C20H16O3/c21-19-17-15(13-7-3-1-4-8-13)11-12-16(18(17)20(22)23-19)14-9-5-2-6-10-14/h1-12,15-18H

20929-46-8SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 13, 2017

Revision Date: Aug 13, 2017

1.Identification

1.1 GHS Product identifier

Product name 4,7-diphenyl-3a,4,7,7a-tetrahydro-2-benzofuran-1,3-dione

1.2 Other means of identification

Product number -
Other names 3,6-Diphenyl-4-cyclohexene-1,2-dicarboxylic anhydride

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:20929-46-8 SDS

20929-46-8Relevant articles and documents

Study of the 'dry reaction' without any medium under microwave irradiation

Rongshun,Pinjie,Shushan

, p. 2417 - 2421 (1994)

Several reactions were conducted under microwave irradiation at ambient pressure, in the absence of solvent and any inorganics as catalyst carrier. Reaction time was dramatically reduced and good yield was obtained (compared with that of using organic sol

4,7-Diphenylisobenzofuran: A useful intermediate for the construction of phenyl-substituted acenes

Rainbolt, James Eric,Miller, Glen P.

, p. 3020 - 3030 (2007/10/03)

(Chemical Equation Presented) The formation and subsequent reactivity of previously unknown 4,7-diphenylisobenzofuran, 5, is reported. The Diels-Alder reaction between 5 and p-benzoquinone in boiling glacial acetic acid yields an unprecedented exo,exo ant

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