Cas 20636-55-9,[(Z)-Hydroxyimino]-methylsulfanyl-acetic acid ethyl ester

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Check Digit Verification of cas no

The CAS Registry Mumber 20636-55-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,6,3 and 6 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 20636-55:
(7*2)+(6*0)+(5*6)+(4*3)+(3*6)+(2*5)+(1*5)=89
89 % 10 = 9
So 20636-55-9 is a valid CAS Registry Number.

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20636-55-9Relevant academic research and scientific papers

1,1-bis(Methylthio)-2-Nitroethene in Superacids: NMR Study and Reactivity of the Formed Hydroxynitrillium Ion.

Coustard, Jean-Marie

, p. 10929 - 10940 (1995)

At low temperature in superacids TFSA or HF-SbF5, 1,1-bis(methylthio)-2-nitroethene yields a stable dication with hydroxynitrilium and bis(methylthio)carbocationic sites.The first site can be trapped in situ with suitable nucleophiles (aromatics, fluoride).Both sites can be trapped when the acidity is destroyed with MeOH or MeSH, to form in fair to good yield the corresponding α-hydroxyiminoorthothioester or the furoxane orthothioester.

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