123176-16-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 123176-16-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,3,1,7 and 6 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 123176-16:
(8*1)+(7*2)+(6*3)+(5*1)+(4*7)+(3*6)+(2*1)+(1*6)=99
99 % 10 = 9
So 123176-16-9 is a valid CAS Registry Number.
123176-16-9Relevant articles and documents
Desulfation and rearrangement of tigemonam to an isoxazolidin-5-one and the synthesis of the rearrangement product
Singh,Kissick,Fox,Kocy,Mueller
, p. 17 - 21 (2007/10/02)
The β-lactam antibiotic Tigemonam undergoes desulfation to the N-hydroxyazetidinone, which rearranges to the isoxazolidin-5-one. the structure of the rearrangement product was confirmed by synthesis.
