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1257516-68-9

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1257516-68-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1257516-68-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,7,5,1 and 6 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1257516-68:
(9*1)+(8*2)+(7*5)+(6*7)+(5*5)+(4*1)+(3*6)+(2*6)+(1*8)=169
169 % 10 = 9
So 1257516-68-9 is a valid CAS Registry Number.

1257516-68-9Upstream product

1257516-68-9Downstream Products

1257516-68-9Relevant academic research and scientific papers

Lipase-catalyzed enantio- and regioselective transformation of 3-epi-shikimic acid derivatives as the key step for the entry of polyoxygenated carbacycles

Hamada, Manabu,Higashi, Toshinori,Shoji, Mitsuru,Umezawa, Kazuo,Sugai, Takeshi

, p. 78 - 84 (2010)

Candida antarctica lipase B (Novozym 435)-catalyzed transesterification on methyl (±)-3,4-di-O-acetyl-5-O-(tert-butyldimethyl)silyl-3-epi-shikimate worked highly regio- and enantioselective manner. Only (3R,4S,5S)-isomer reacted with an E value over 500,

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