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85097-22-9

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85097-22-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 85097-22-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,5,0,9 and 7 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 85097-22:
(7*8)+(6*5)+(5*0)+(4*9)+(3*7)+(2*2)+(1*2)=149
149 % 10 = 9
So 85097-22-9 is a valid CAS Registry Number.

85097-22-9Relevant articles and documents

Acid-catalyzed formation of hexahomooxacalix[3]arenes

Miah, Mijan,Romanov, Nikolai N.,Cragg, Peter J.

, p. 3124 - 3126 (2007/10/03)

The role of acid catalysis in oxacalix[3]arene synthesis has been investigated. A range of acids were used to optimize the yield of tert-butyloxacalix[3]arene, the most efficient being p-toluenesulfonic acid, which, with local symmetry complementary with that of the lower rim of the calixarene, provides a templating effect.

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