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199733-96-5

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199733-96-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 199733-96-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,9,7,3 and 3 respectively; the second part has 2 digits, 9 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 199733-96:
(8*1)+(7*9)+(6*9)+(5*7)+(4*3)+(3*3)+(2*9)+(1*6)=205
205 % 10 = 5
So 199733-96-5 is a valid CAS Registry Number.

199733-96-5Relevant articles and documents

Reaction between triphenylphosphine and aromatic amines in the presence of diethyl azodicarboxylate: An efficient synthesis of aryliminophosphoranes under neutral and mild conditions

Adib, Mehdi,Sheikhi, Ehsan,Deljoush, Azadeh

experimental part, p. 4137 - 4140 (2011/06/24)

An efficient synthesis of aryliminophosphoranes is described. A mixture of an aromatic amine, diethyl azodicarboxylate and triphenylphosphine undergo a Mitsonobu type reaction at ambient temperature in dry dichloromethane to afford aryliminophosphoranes in excellent yields.

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