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253268-21-2

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253268-21-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 253268-21-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,3,2,6 and 8 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 253268-21:
(8*2)+(7*5)+(6*3)+(5*2)+(4*6)+(3*8)+(2*2)+(1*1)=132
132 % 10 = 2
So 253268-21-2 is a valid CAS Registry Number.

253268-21-2Relevant articles and documents

Synthesis and QSAR of substituted 3-hydroxyanthranilic acid derivatives as inhibitors of 3-hydroxyanthranilic acid dioxygenase (3-HAO)

Linderberg, Mats,Hellberg, Sven,Bjoerk, Susanna,Gotthammar, Birgitta,Hoegberg, Thomas,Persson, Kerstin,Schwarcz, Robert,Luthman, Johan,Johansson, Rolf

, p. 729 - 744 (2007/10/03)

Novel 4,5-, 4,6-disubstituted and 4,5,6-trisubstituted 3- hydroxyanthranilic acid derivatives were synthesized and their ability to reduce the production of the excitotoxin quinolinic acid (QUIN) by inhibition of brain 3-hydroxyanthranilic acid dioxygenase (3-HAO) was subsequently investigated. The potency of the compounds to inhibit 3-HAO was assayed in rat brain homogenate, while chemical stability of certain compounds was studied by HPLC. The data were used to generate quantitative structure- activity relationship (QSAR) models for potency of 3-HAO inhibition and compound stability. Compounds with longer half-lives were obtained when the difference between the HOMO and LUMO was increased, while electron withdrawing groups in the 4- and 5-positions increased the potency of 3-HAO inhibition. Selected compounds that showed high potency in vitro were also found to be efficacious inhibitors in vivo after cerebral administration in rats.

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