290836-34-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 290836-34-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,9,0,8,3 and 6 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 290836-34:
(8*2)+(7*9)+(6*0)+(5*8)+(4*3)+(3*6)+(2*3)+(1*4)=159
159 % 10 = 9
So 290836-34-9 is a valid CAS Registry Number.
290836-34-9Relevant articles and documents
Synthesis of α-amino-α′, α′-dihaloketones and process for the preparation of β-amino acid derivatives by the use of the same
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, (2008/06/13)
The present invention provides a commercially profitable process for producing a β-amino acid ester derivative which comprises reacting an α-amino acid ester derivative with a base and a dihalomethane, reacting the same with a lithium amide and an alkylli