104739-58-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 104739-58-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,4,7,3 and 9 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 104739-58:
(8*1)+(7*0)+(6*4)+(5*7)+(4*3)+(3*9)+(2*5)+(1*8)=124
124 % 10 = 4
So 104739-58-4 is a valid CAS Registry Number.
104739-58-4Relevant articles and documents
"Nitrono" Peptides, I. - An Isomeric and Isoelectronic Equivalent of the Peptide Bond
Grundke, Guenter,Keese, Wolfgang,Rimpler, Manfred
, p. 73 - 76 (2007/10/02)
Optically active Boc-α-L-amino aldehydes 1 are converted with N-hydroxy-α-L-amino acid methyl esters 2 into the N-blocked "nitrono" dipeptide esters 3a-l.
