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72109-62-7

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72109-62-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 72109-62-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,1,0 and 9 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 72109-62:
(7*7)+(6*2)+(5*1)+(4*0)+(3*9)+(2*6)+(1*2)=107
107 % 10 = 7
So 72109-62-7 is a valid CAS Registry Number.

72109-62-7Relevant articles and documents

Facile syntheses of homothiacalixarenes

Ito, Kazuaki,Yamamori, Yayoi,Ohba, Yoshihiro,Sone, Tyo

, p. 1167 - 1177 (2007/10/03)

Homothiacalixarenes were conveniently prepared from the reactions of bis(chloromethyl)phenol-formaldehyde trimers with alkanedithiols in good yields.

Facile synthesis of calix[5]arenes with three different upper rim substituents

No, Kwanghyun,Kwon, Kyoung Mee

, p. 1293 - 1295 (2007/10/03)

Four calix[5]arenes, which have three different substituents at the upper rim of calix, are synthesized by the '3 + 2' fragmentation condensation reaction. An equimolar mixture of p-substituted phenol trimer (BCB) and 2,2'-bishydroxymethyl p-substituted p

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