137487-84-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 137487-84-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,4,8 and 7 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 137487-84:
(8*1)+(7*3)+(6*7)+(5*4)+(4*8)+(3*7)+(2*8)+(1*4)=164
164 % 10 = 4
So 137487-84-4 is a valid CAS Registry Number.
137487-84-4Relevant academic research and scientific papers
Asymmetric synthesis of β-lactams via amine additions to 5(R)-menthyloxy-2[5H]-furanone
Lubben,Feringa
, p. 775 - 778 (2007/10/02)
The enantioselective synthesis of a N-benzyl substituted β-lactam 5a, a precursor for carbapenem antibiotics, starting from the chiral synthon 5(R)-menthyloxy-2[5H]-furanone 1, is described.
