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1338559-47-9

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1338559-47-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1338559-47-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,3,8,5,5 and 9 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1338559-47:
(9*1)+(8*3)+(7*3)+(6*8)+(5*5)+(4*5)+(3*9)+(2*4)+(1*7)=189
189 % 10 = 9
So 1338559-47-9 is a valid CAS Registry Number.

1338559-47-9Relevant articles and documents

The diastereoselective formation of tetraalkoxy[4]resorcinarenes derived from (-)-(2R)-2-methoxy-2-phenylethanol and proof of absolute configurations

Bulman Page, Philip C.,Chan, Yohan,Heaney, Harry,McGrath, Matthew J.,Moreno, Eduardo

, p. 5347 - 5354 (2011)

The preparation of optically pure (-)-3-[(2R)-2-methoxy-2-phenylethoxy] phenol from resorcinol monobenzoate and its conversion into diastereoisomeric tetraalkoxyresorcin[4]arenes together with proof of the absolute configurations of the products is reported. The results of the study indicate that diastereoselective ring closure of linear tetrameric intermediates is controlled by the steric demand of the alkyl group in the precursor 3-alkoxyphenol.

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