162976-55-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 162976-55-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,2,9,7 and 6 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 162976-55:
(8*1)+(7*6)+(6*2)+(5*9)+(4*7)+(3*6)+(2*5)+(1*5)=168
168 % 10 = 8
So 162976-55-8 is a valid CAS Registry Number.
162976-55-8Relevant academic research and scientific papers
Schwenninger, R.,Ongania, K.-H.
, p. 187 - 200 (1995)
The treatment of 2-(oxo-1-azetidinyl)-benzyltriphenylphosphonium salts 9 and 13b, c, d, and e with base leads to carbacephemes 10 and 14b, c, d, and e which can be reduced to the title compounds.The reaction of 14 with acids does not result in 3-oxocepham
