104392-88-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 104392-88-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,4,3,9 and 2 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 104392-88:
(8*1)+(7*0)+(6*4)+(5*3)+(4*9)+(3*2)+(2*8)+(1*8)=113
113 % 10 = 3
So 104392-88-3 is a valid CAS Registry Number.
104392-88-3Relevant articles and documents
Photo-oxygenation of N-Unsubstituted Pyrazin-2-ones and Alkoxypyrazines
Nishio, Takehiko,Kondo, Masaji,Omote, Yoshimori
, p. 2497 - 2500 (2007/10/02)
Dye-sensitized photo-oxgenation of N-unsubstituted pyrazin-2-ones (1b-d) afforded the endoperoxides (2b-d) in 61-72percent yield.On being heated the endoperoxides (2) decomposed to give the unsymmetrical imides (4) accompanied by a loss of benzonitrile. 2
