55666-83-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 55666-83-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,6,6 and 6 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 55666-83:
(7*5)+(6*5)+(5*6)+(4*6)+(3*6)+(2*8)+(1*3)=156
156 % 10 = 6
So 55666-83-6 is a valid CAS Registry Number.
55666-83-6Relevant academic research and scientific papers
Preparation of polyalkylene polyamines using phosphorus amide catalyst
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, (2008/06/13)
Predominantly linearly extended polyalkylene polyamines are produced, in increased conversion rates, by reacting alkylenediamines with alkylene glycols or alkanolamines using a phosphorus amide catalyst in place of phosphorus acid or acid derivative catalysts.
