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52898-53-0

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52898-53-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 52898-53-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,2,8,9 and 8 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 52898-53:
(7*5)+(6*2)+(5*8)+(4*9)+(3*8)+(2*5)+(1*3)=160
160 % 10 = 0
So 52898-53-0 is a valid CAS Registry Number.

52898-53-0Relevant articles and documents

Imino 1,2-Wittig rearrangement of hydroximates and its application to synthesis of cytoxazone

Miyata, Okiko,Koizumi, Tomoko,Asai, Hiroshi,Iba, Ryuichi,Naito, Takeaki

, p. 3893 - 3914 (2007/10/03)

The imino 1,2-Wittig rearrangement of hydroximates provides a novel method for the construction of 2-hydroxyoxime ethers. Upon treatment with LDA, Z-hydroximates smoothly underwent stereoselective rearrangement to give Z-2-hydroxyoxime ethers in good yield, which were converted into amino alcohols. On the other hand, the rearrangement of E-hydroximates gave a mixture of E- and Z-2-hydroxyoxime ethers. This method was successfully applied to a practical synthesis of cytoxazone.

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