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(1R,2S,3S,4S)-2-Methyl-3-(toluene-4-sulfinyl)-bicyclo[2.2.1]hept-5-ene-2-carboxylic acid ethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

89764-38-5

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89764-38-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 89764-38-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,7,6 and 4 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 89764-38:
(7*8)+(6*9)+(5*7)+(4*6)+(3*4)+(2*3)+(1*8)=195
195 % 10 = 5
So 89764-38-5 is a valid CAS Registry Number.

89764-38-5Relevant articles and documents

HIGHLY DIASTEREOSELECTIVE DIELS-ALDER REACTION OF OPTICALLY ACTIVE ETHYL 2-p-TOLYLSULFINYLMETHYLENEPROPIONATE WITH CYCLOPENTADIENE

Koizumi, Toru,Hakamada, Ichiro,Yoshii, Eiichi

, p. 87 - 90 (1984)

Stereochemistry of the Diels-Alder reaction of ethyl Z- and E-2-p-tolylsulfinylmethylenepropionate with cyclopentadiene has been studied.The high diastereoselectivity was observed especially in the case of exo-cycloaddition.

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