99563-90-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 99563-90-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,5,6 and 3 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 99563-90:
(7*9)+(6*9)+(5*5)+(4*6)+(3*3)+(2*9)+(1*0)=193
193 % 10 = 3
So 99563-90-3 is a valid CAS Registry Number.
99563-90-3Relevant academic research and scientific papers
NEW SYNTHETIC METHODS FOR 4-AMINO-2(5H)-FURANONES
Hiyama, Tamejiro,Oishi, Haruhito,Saimoto, Hiroyuki
, p. 2459 - 2462 (2007/10/02)
Two new efficient methods are disclosed for the synthesis of the title compounds: (1) base-promoted ring closure of 2-acyloxy alkanenitrile and (2) acid-mediated lactonization of t-butyl-4-alkoxy-3-amino-2-alkenoates.
