121583-00-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 121583-00-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,5,8 and 3 respectively; the second part has 2 digits, 0 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 121583-00:
(8*1)+(7*2)+(6*1)+(5*5)+(4*8)+(3*3)+(2*0)+(1*0)=94
94 % 10 = 4
So 121583-00-4 is a valid CAS Registry Number.
InChI:InChI=1/C11H9N3O3/c12-11(17)10-8(15)6-9(16)14(13-10)7-4-2-1-3-5-7/h1-6,16H,(H2,12,17)
121583-00-4Relevant articles and documents
NEW PYRIDAZINONE AND PYRIDONE COMPOUNDS
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Page/Page column 58, (2012/09/22)
The invention relates to pyridazinone and pyridone com- pounds having formula (I) or (I'), and pharmaceutically acceptable salts, hydrates, and solvates thereof (I) wherein R1 / R4 and X and X3 are as defined in the claims