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25169-81-7

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25169-81-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 25169-81-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,5,1,6 and 9 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 25169-81:
(7*2)+(6*5)+(5*1)+(4*6)+(3*9)+(2*8)+(1*1)=117
117 % 10 = 7
So 25169-81-7 is a valid CAS Registry Number.

25169-81-7Relevant articles and documents

Syn/anti switching by specific heteroatom-titanium coordination in the Mannich-like synthesis of 2,3-diaryl-β-amino acid derivatives

Bonetti, Andrea,Clerici, Francesca,Foschi, Francesca,Nava, Donatella,Pellegrino, Sara,Penso, Michele,Soave, Raffaella,Gelmi, Maria Luisa

supporting information, p. 3203 - 3209 (2014/06/09)

A very efficient synthesis of 2,3-diaryl-β-amino acid derivatives is realized by a TiCl4/triethylamine-catalyzed Mannich-like reaction of arylacetic or arylthioacetic esters with arylimines. The presence on the arylacetic moiety of an ortho-het

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