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1193444-23-3

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1193444-23-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1193444-23-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,9,3,4,4 and 4 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1193444-23:
(9*1)+(8*1)+(7*9)+(6*3)+(5*4)+(4*4)+(3*4)+(2*2)+(1*3)=153
153 % 10 = 3
So 1193444-23-3 is a valid CAS Registry Number.

1193444-23-3Relevant articles and documents

Facile synthesis of 2-unsubstituted benzofuran-3-carboxylates using diazo(trimethylsilyl)methylmagnesium bromide

Hari, Yoshiyuki,Kondo, Ryosuke,Date, Koji,Aoyama, Toyohiko

experimental part, p. 8708 - 8713 (2009/12/28)

Diazo(trimethylsilyl)methylmagnesium bromide reacted with (o-methoxyphenyl)(oxo)acetates to readily afford 2-unsubstituted benzofuran-3-carboxylates via oxonium ylides formed from the initially generated alkylidenecarbene intermediates.

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