900890-59-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 900890-59-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,0,0,8,9 and 0 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 900890-59:
(8*9)+(7*0)+(6*0)+(5*8)+(4*9)+(3*0)+(2*5)+(1*9)=167
167 % 10 = 7
So 900890-59-7 is a valid CAS Registry Number.
900890-59-7Relevant articles and documents
Synthesis of isoxazolinylxanthines
Dirnens,Skrastina,Popelis,Lukevics
, p. 193 - 196 (2008/12/21)
1-[5-(3-Arylisoxazolin-2-yl)methyl]-3,7-dimethylxanthines have been synthesized by the [2+3] cycloaddition of arylnitrile oxides to allyltheobromine. 7-{5-[3-(2,4-Dichlorophenyl)isoxazolin-2-yl]methyl}-1,3- dimethylxanthine was obtained by the addition of