140869-77-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 140869-77-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,0,8,6 and 9 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 140869-77:
(8*1)+(7*4)+(6*0)+(5*8)+(4*6)+(3*9)+(2*7)+(1*7)=148
148 % 10 = 8
So 140869-77-8 is a valid CAS Registry Number.
140869-77-8Relevant articles and documents
Highly diastereoselective synthesis of β-lactams by addition of titanium enolates of 2-pyridyl thioesters to chiral imines
Annunziata,Cinquini,Cozzi,Cozzi
, p. 1113 - 1116 (2007/10/02)
Addition of titanium enolates of 2-pyridyl thioesters to chiral imines derived from alkoxy aldehydes occurs with good diastereofacial control, and opens a simple access to important carbapenem antibiotics.
