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102851-23-0

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102851-23-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 102851-23-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,2,8,5 and 1 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 102851-23:
(8*1)+(7*0)+(6*2)+(5*8)+(4*5)+(3*1)+(2*2)+(1*3)=90
90 % 10 = 0
So 102851-23-0 is a valid CAS Registry Number.

102851-23-0Relevant articles and documents

A General, Regiospecific Synthesis of Highly Substituted Quinones

Liebeskind, Lanny S.,Iyer, Suresh,Jewell, Charles F.

, p. 3065 - 3067 (2007/10/02)

A general route to a wide variety of substituted quinones (furyl, indolo, pyrrolo, quinolino, naphtho, and anthra) has been developed via the thermolysis (160 deg C, xylene) and subsequent oxidation (air or Ce4+) of 4-hydroxy-4-substituted-cyclobutenones (eq. 1) and 2-hydroxy-2-substituted-benzocyclobutenones which were formed by the regioselective addition of an appropriate aryl or heteroaryl (etc.) lithium reagent to the correspnding cyclobutenedione.

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