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139374-18-8

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139374-18-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 139374-18-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,3,7 and 4 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 139374-18:
(8*1)+(7*3)+(6*9)+(5*3)+(4*7)+(3*4)+(2*1)+(1*8)=148
148 % 10 = 8
So 139374-18-8 is a valid CAS Registry Number.

139374-18-8Downstream Products

139374-18-8Relevant articles and documents

Singlet oxygen in synthesis. Formation of d,l- and meso- isochrysohermidin from a 3,3'-bipyrrole precursor

Wasserman, Harry H.,Rotello, Vincent M.,Frechette, Roger,DeSimone, Robert W.,Yoo, Ji Uk,Baldino, Carmen M.

, p. 8731 - 8738 (2007/10/03)

A synthesis of the d,l and meso forms of isochrysohermidin 3 is outlined which employs the singlet oxygen oxidation of pyrroles as the key step. The bipyrrole precursor 8 was synthesized from a 3-hydroxy monopyrrole which, in turn, was prepared by additio

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