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7437-09-4

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7437-09-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 7437-09-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,4,3 and 7 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 7437-09:
(6*7)+(5*4)+(4*3)+(3*7)+(2*0)+(1*9)=104
104 % 10 = 4
So 7437-09-4 is a valid CAS Registry Number.

7437-09-4Relevant articles and documents

Synthesis of novel chiral 6,6′-bis(oxazolyl)-1,1′-biphenyls and their application as ligands in copper(I)-catalyzed asymmetric cyclopropanation

Khanbabaee, Karamali,Basceken, Sinan,Floerke, Ulrich

, p. 2804 - 2812 (2006)

The synthesis of a number of novel chiral bis(oxazolyl) ligands with a biphenyl backbone from ellagic acid 1 and their application in the copper(I)-catalyzed asymmetric cyclopropanation was described.

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