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130803-94-0

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130803-94-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 130803-94-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,0,8,0 and 3 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 130803-94:
(8*1)+(7*3)+(6*0)+(5*8)+(4*0)+(3*3)+(2*9)+(1*4)=100
100 % 10 = 0
So 130803-94-0 is a valid CAS Registry Number.

130803-94-0Relevant articles and documents

Consecutive Michael-claisen process for cyclohexane-1,3-dione derivative (CDD) synthesis from unsubstituted and substituted acetone 1

Sharma, Dharminder,Shil, Arun K.,Singh, Bikram,Das, Pralay

supporting information; experimental part, p. 1199 - 1204 (2012/06/15)

A long-existing problem of cyclohexane-1,3-dione derivatives (CDD) synthesis from unreactive acetone through consecutive Michael-Claisen process was solved under this study. The practical applicability of this process was tested for a novel compound ethyl 3-(2,4-dioxocyclohexyl)propanoate for up to 20-gram scale. Furthermore, the scope of different acetone derivatives was investigated and resulted with similar consecutive Michael-Claisen process for CDD synthesis. The reaction exhibited remarkable regioselectivity in Michael addition followed by Claisen cyclization. In this process high substrate selectivity was observed for CDD synthesis following consecutive double-Michael-Claisen and Michael-Claisen cyclization. Georg Thieme Verlag Stuttgart · New York.

Pyrazolopyridine cycloalkanones and process for their preparation

-

, (2008/06/13)

Novel tetrahydropyrazolo-[3,4-b]quinolinones, cyclopenta[b]pyrazolo-[4,3-e]pyridinones and cyclohepta[b]-pyrazolo[4,3-e]pyridinones, useful as anxiolytics having reduced side effects, are disclosed, including methods of preparation, pharmaceutical compositions containing them and intermediates used in their preparation.

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