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140462-99-3

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140462-99-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 140462-99-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,0,4,6 and 2 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 140462-99:
(8*1)+(7*4)+(6*0)+(5*4)+(4*6)+(3*2)+(2*9)+(1*9)=113
113 % 10 = 3
So 140462-99-3 is a valid CAS Registry Number.

140462-99-3Upstream product

140462-99-3Relevant 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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