21325-53-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 21325-53-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,3,2 and 5 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 21325-53:
(7*2)+(6*1)+(5*3)+(4*2)+(3*5)+(2*5)+(1*3)=71
71 % 10 = 1
So 21325-53-1 is a valid CAS Registry Number.
21325-53-1Relevant academic research and scientific papers
4-PYRIMIDONE COMPOUNDS
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, (2008/06/13)
The compounds are substituted isocytosines which are histamine H 2-antagonists. Two specific compounds of the present invention are 2-2-(5-methyl-4-imidazolylmethylthio)-ethylamino!-5-(3-methoxybenzyl)-4-pyrim idone and 2-2-(5-methyl-4-imidazolylmethylthio)ethylamino!-5-benzyloxy-4-pyrimidone.