389805-98-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 389805-98-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,8,9,8,0 and 5 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 389805-98:
(8*3)+(7*8)+(6*9)+(5*8)+(4*0)+(3*5)+(2*9)+(1*8)=215
215 % 10 = 5
So 389805-98-5 is a valid CAS Registry Number.
389805-98-5Relevant academic research and scientific papers
Synthesis of β-lactams via ring opening of a serine derived aziridine
Turner,Sikkema,Filippov,Van der Marel,Van Boom
, p. 1727 - 1730 (2007/10/03)
Serine derived aziridine 15 was successfully ring-opened with amino acid esters to give diaminopropionic acid derivatives in excellent yield and regioselectivity. These compounds were cyclised to form the corresponding β-lactams in good overall yield. One
