126448-49-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 126448-49-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,6,4,4 and 8 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 126448-49:
(8*1)+(7*2)+(6*6)+(5*4)+(4*4)+(3*8)+(2*4)+(1*9)=135
135 % 10 = 5
So 126448-49-5 is a valid CAS Registry Number.
126448-49-5Relevant academic research and scientific papers
REGIO- AND CHEMOSELECTIVE EPIMERIZATION OF cis-3-AMINO-β-LACTAMS TO THE trans-ISOMERS: A NEW SYNTHESIS OF AZTREONAM
Kawabata, Takeo,Itoh, Kazuhiro,Hiyama, Tamejiro
, p. 4837 - 4840 (2007/10/02)
The title isomerization reaction was effected with trifluoroacetic acid and shown to be applicable to the synthesis of an optically active monobactam antibiotic, aztreonam.
