Cas 805227-72-9,3-Butynoic acid, 2-[[(4-methylphenyl)sulfonyl]amino]-2-(trifluoromethyl)-, ethyl ester, (2S)-

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Check Digit Verification of cas no

The CAS Registry Mumber 805227-72-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,0,5,2,2 and 7 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 805227-72:
(8*8)+(7*0)+(6*5)+(5*2)+(4*2)+(3*7)+(2*7)+(1*2)=149
149 % 10 = 9
So 805227-72-9 is a valid CAS Registry Number.

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805227-72-9Relevant academic research and scientific papers

Synthesis of enantiomerically pure α-ethyl, α-vinyl and α-ethynyl 3,3,3-trifluoro alaninates

Crucianelli, Marcello,De Angelis, Francesco,Lazzaro, Francesco,Malpezzi, Luciana,Volonterio, Alessandro,Zanda, Matteo

, p. 573 - 577 (2007/10/03)

We describe the first synthesis of enantiomerically pure (S)-α-vinyl and (S)-α-ethynyl 3,3,3-trifluoro alanine (TF-Ala) ethyl esters, starting from the in situ generated sulfinimine (S)-2 as key fluorinated building-block. (S)-α-Ethyl TF-Ala-OEt has been prepared as well by this route.

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