189383-75-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 189383-75-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,9,3,8 and 3 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 189383-75:
(8*1)+(7*8)+(6*9)+(5*3)+(4*8)+(3*3)+(2*7)+(1*5)=193
193 % 10 = 3
So 189383-75-3 is a valid CAS Registry Number.
189383-75-3Relevant academic research and scientific papers
Synthesis of 4-[8-amino-6-benzyl-10(9H)-oxo-4,5-dihydro-(6H)-isoxazolo[4,3-d]pyrimido[4,5-b] azepin-3-yl]benzoyl-l-glutamic acid. A novel pyrimidoazepine-based folic acid derivative
Miller, Michael L.,Ray, Partha S.
, p. 501 - 506 (2007/10/03)
Synthesis of the titled compound (13) is described using an intramolecular 1,3-dipolar cycloaddition reaction as the key step.
