157494-43-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 157494-43-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,4,9 and 4 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 157494-43:
(8*1)+(7*5)+(6*7)+(5*4)+(4*9)+(3*4)+(2*4)+(1*3)=164
164 % 10 = 4
So 157494-43-4 is a valid CAS Registry Number.
157494-43-4Relevant academic research and scientific papers
Stereospecific route for the synthesis of 1,5-lactams: Synthesis of (2S,3S,4R,5R)-methyl-3,4,5-triphenyl-methylenoxy-6-oxo-piperidine-2-ca rboxylate
Guntha,Mereyala
, p. 4869 - 4870 (2007/10/02)
Synthesis of derivative 4, and oxidation product of nojirimycin, from D-glucose is described, involving, ozonolysis of 8 as key step.
