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203132-02-9

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203132-02-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 203132-02-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,3,1,3 and 2 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 203132-02:
(8*2)+(7*0)+(6*3)+(5*1)+(4*3)+(3*2)+(2*0)+(1*2)=59
59 % 10 = 9
So 203132-02-9 is a valid CAS Registry Number.

203132-02-9Downstream Products

203132-02-9Relevant articles and documents

Syntheses of Dialkyl and Functionalized Ketones via 1-(Benzotriazol-1-yl)alkyl Methyl Thioethers

Katritzky, Alan R.,Oniciu, Daniela C.,Ghiviriga, Ion,Soti, Ferenc

, p. 2110 - 2115 (2007/10/03)

Benzotriazol-1-ylmethyl methyl thioether (1), after easy deprotonation by BuLi, reacted with alkyl halides to afford 1-(benzotriazol-1-yl)alkyl methyl thioethers 2 in good yields. The utility of compounds 2 as alkanoyl anion equivalents was demonstrated by the reactions of their anions with alkyl halides, aldehydes, ketones, esters, and phenyl isocyanate: the products were readily hydrolyzed to α-functionalized ketones in dilute aqueous acid.

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