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171815-95-5

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171815-95-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 171815-95-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,1,8,1 and 5 respectively; the second part has 2 digits, 9 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 171815-95:
(8*1)+(7*7)+(6*1)+(5*8)+(4*1)+(3*5)+(2*9)+(1*5)=145
145 % 10 = 5
So 171815-95-5 is a valid CAS Registry Number.

171815-95-5Relevant articles and documents

Highly Diastereoselective Synthesis of Threo or Erythro Aminoalkyl Epoxides from α-Amino Acids

Barluenga, Jose,Baragana, Beatriz,Concellon, Jose M.

, p. 6696 - 6699 (2007/10/03)

α-Chloro-α'-(dibenzylamino)methylketones 3 are synthesized in enantiomerically pure form starting from α-amino acids.Reduction of amino ketones 3 and further epoxidation affords threo aminoalkyl epoxides 6 with diastereoisomeric excess ranging between 94percent and 98percent.The synthesis of erythro amino epoxides 9 is also described by reaction of α-amino aldehydes 7 with in situ generated (halomethyl)lithium.Amino epoxides 9 were obtained with a diastereoisomeric excess ranging between 91percent and 98percent.

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