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959009-63-3

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959009-63-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 959009-63-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,5,9,0,0 and 9 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 959009-63:
(8*9)+(7*5)+(6*9)+(5*0)+(4*0)+(3*9)+(2*6)+(1*3)=203
203 % 10 = 3
So 959009-63-3 is a valid CAS Registry Number.

959009-63-3Downstream Products

959009-63-3Relevant articles and documents

Zwitterionic salts as mild organocatalysts for transesterification

Ishihara, Kazuaki,Niwa, Masatoshi,Kosugi, Yuji

, p. 2187 - 2190 (2008)

(Chemical Equation Presented) The exothermic reaction of 3,5-bis(trifluoromethyl)phenyl or 4-nitrophenyl isothiocyanate with 4-pyrrolidinopyridine (PPY) gave the corresponding arylaminothiocarbonylpyridinium salts in quantitative yields. These novel zwitterionic salts were effective as organocatalysts for the transesterification reaction of an equimolar mixture of methyl carboxylates and alcohols in hydrocarbons such as heptane and octane under azeotropic reflux conditions with the removal of methanol. In sharp contrast, PPY was inert as a catalyst under the same reaction conditions.

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