141422-87-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 141422-87-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,1,4,2 and 2 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 141422-87:
(8*1)+(7*4)+(6*1)+(5*4)+(4*2)+(3*2)+(2*8)+(1*7)=99
99 % 10 = 9
So 141422-87-9 is a valid CAS Registry Number.
141422-87-9Relevant academic research and scientific papers
ANIONIC 4+2 CYCLIZATION ROUTE TO 3-SULFUR SUBSTITUTED ISOCEPHEM ANALOGS
Shakya, Sagar,Durst, Tony
, p. 67 - 83 (2007/10/02)
Four different isocephem analogs have been synthesized.The key step in the construction of the bicyclic ring involves an anionic 4+2 cyclization.The lithio derivative obtained from a suitably protected N-carboxymethyl-2-azetidinone was condensed with carb
