129087-57-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 129087-57-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,0,8 and 7 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 129087-57:
(8*1)+(7*2)+(6*9)+(5*0)+(4*8)+(3*7)+(2*5)+(1*7)=146
146 % 10 = 6
So 129087-57-6 is a valid CAS Registry Number.
129087-57-6Relevant articles and documents
A facile and efficient method for macrolactamization
Bai,Bo,Zhou
, p. 2161 - 2164 (2007/10/02)
Using 2-bromo-1-methylpyridinium iodide as carboxyl activating agent, 10 ansa-macrolactams were prepared conveniently from the corresponding seco-precursor ω-amino acids. In most cases the yields are excellent.
