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895570-99-7

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895570-99-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 895570-99-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,9,5,5,7 and 0 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 895570-99:
(8*8)+(7*9)+(6*5)+(5*5)+(4*7)+(3*0)+(2*9)+(1*9)=237
237 % 10 = 7
So 895570-99-7 is a valid CAS Registry Number.

895570-99-7Relevant articles and documents

An efficient enantioselective synthesis of florfenicol via a vanadium-catalyzed asymmetric epoxidation

Li, Feng,Wang, Zhong-Hua,Zhao, Lei,Xiong, Fang-Jun,He, Qiu-Qin,Chen, Fen-Er

, p. 1337 - 1341 (2011/11/29)

An efficient and highly enantioselective synthesis of florfenicol 1 was achieved with 37% overall yield starting from commercially available 4-methylthiobenzaldehyde. A key feature of the synthesis is the vanadium-catalyzed asymmetric epoxidation of allylic alcohol 5 with aq tert-butyl hydroperoxide to form (2S,3S)-epoxide 6.

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