1309439-98-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1309439-98-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,0,9,4,3 and 9 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1309439-98:
(9*1)+(8*3)+(7*0)+(6*9)+(5*4)+(4*3)+(3*9)+(2*9)+(1*8)=172
172 % 10 = 2
So 1309439-98-2 is a valid CAS Registry Number.
1309439-98-2Relevant articles and documents
Benzotriazole-mediated syntheses of depsipeptides and oligoesters
Avan, Ilker,Tala, Srinivasa R.,Steel, Peter J.,Katritzky, Alan R.
, p. 4884 - 4893 (2011/07/30)
Reactions of O-Pg(α-hydroxyacyl)benzotriazoles with (a) unprotected α-hydroxycarboxylic acids, (b) amino acids, and (c) amines afforded, respectively, chirally pure (a) oligoesters, (b) depsidipeptides, and (c) amide conjugates (yields 52-94%). N-Pg(α-Ami
