80490-57-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 80490-57-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,0,4,9 and 0 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 80490-57:
(7*8)+(6*0)+(5*4)+(4*9)+(3*0)+(2*5)+(1*7)=129
129 % 10 = 9
So 80490-57-9 is a valid CAS Registry Number.
80490-57-9Relevant articles and documents
OXIDATION OF 3,4-DISUBSTITUTED ISOXAZOLIN-5-ONES. A NEW SYNTHESIS OF α-KETO ACIDS
Baldoli, Clara,Beccalli, Egle M.,Licandro, Emanuela,Marchesini, Alessandro
, p. 347 - 350 (2007/10/02)
m-Chloroperoxybenzoic or peroxyformic acid oxidation of 3,4-disubstituted isoxazolin-5-ones affords the corresponding 4-hydroxy derivatives from which, by ring opening, nitriles and α-keto acids are obtained.
