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203313-47-7

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203313-47-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 203313-47-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,3,3,1 and 3 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 203313-47:
(8*2)+(7*0)+(6*3)+(5*3)+(4*1)+(3*3)+(2*4)+(1*7)=77
77 % 10 = 7
So 203313-47-7 is a valid CAS Registry Number.

203313-47-7Downstream Products

203313-47-7Relevant articles and documents

A High-Yield and Cost-Effective Synthesis of Spirotetramat

Mao, Longfei,Wang, Jiahao,Xu, Guiqing,Zhou, Yingjie

, p. 1775 - 1778 (2020/12/01)

Abstract: cis-8-Methoxy-1,3-diazaspiro[4.5]decane-2,4-dione, the key intermediate in the synthesis of spirotetramat, was synthesized by catalytic hydrogenation, oxidation, and Bucherer–Bergs reaction with 4-methoxycyclohexan-1-one as raw material. Spirotetramat was obtained in an overall yield of 20.4% by a multi-step reaction sequence including hydrolysis, esterification, acylation, intramolecular condensation, and O-acylation. The advantages of the proposed method are mild conditions, simple operation, and good to excellent yields in each step.

CIS-ALKOXY-SUBSTITUTED SPIROCYCLIC 1-H-PYRROLIDINE-2,4-DIONE DERIVATIVES SERVING AS PESTICIDES

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Page/Page column 87-88, (2008/06/13)

The invention relates to novel cis-alkoxy-substituted spirocyclic 1-H-pyrrolidine-2,4-dione derivatives of formula (I), in which A, G, X and Y have the meanings as cited in the description, to a number of methods for producing these derivatives and to the

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