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128038-99-3

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128038-99-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 128038-99-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,0,3 and 8 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 128038-99:
(8*1)+(7*2)+(6*8)+(5*0)+(4*3)+(3*8)+(2*9)+(1*9)=133
133 % 10 = 3
So 128038-99-3 is a valid CAS Registry Number.

128038-99-3Relevant articles and documents

Preparation of Heteroarenecarbonitriles by Reaction of Haloheteroarenes with Potassium Cyanide Catalyzed by Sodium p-Toluenesulfinate

Miyashita, Akira,Suzuki, Yumiko,Ohta, Kiyono,Higashino, Takeo

, p. 345 - 356 (2007/10/02)

Several heteroarenecarbonitriles were prepared by reaction of haloheteroarenes with potassium cyanide catalyzed by sodium p-toluenesulfinate (1) or sodium methanesulfinate (2).In the reaction pathway, the cyanation proceeds through the formation of the su

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