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1260507-57-0

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1260507-57-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1260507-57-0 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,6,0,5,0 and 7 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1260507-57:
(9*1)+(8*2)+(7*6)+(6*0)+(5*5)+(4*0)+(3*7)+(2*5)+(1*7)=130
130 % 10 = 0
So 1260507-57-0 is a valid CAS Registry Number.

1260507-57-0Relevant articles and documents

Practical one-pot double functionalizations of proline

Huy, Peter,Schmalz, Hans-Guenther

, p. 954 - 960 (2011/05/07)

Solubilization of proline as the triethylammonium salt allows N-protection (as the Boc, Cbz or Moc derivative) and subsequent esterification or amidation of the carboxy terminus to be performed in an efficient one-pot fashion. Based on this concept, highly practical protocols were developed to prepare a series of proline derivatives (including Pro-Ser dipetides, Weinreb amides and N-protected proline esters), which are important intermediates, for instance, for the synthesis of proline-derived peptides, chiral reagents and catalysts for asymmetric synthesis. Georg Thieme Verlag Stuttgart - New York.

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