139928-73-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 139928-73-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,9,2 and 8 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 139928-73:
(8*1)+(7*3)+(6*9)+(5*9)+(4*2)+(3*8)+(2*7)+(1*3)=177
177 % 10 = 7
So 139928-73-7 is a valid CAS Registry Number.
139928-73-7Relevant articles and documents
Chemo-enzymatic synthesis of Fmoc-peptide fragments
Chen,Hsiao,Chang,Wang
, p. 391 - 398 (2007/10/02)
Optically pure Fmoc-peptide fragments have been prepared via dicyclohexylcarbodiimide coupling of N-protected amino acids with amino cid esters, followed by enzyme-catalyzed ester hydrolysis by alcalase with a high concentration of organic solvent in a hi
