234780-30-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 234780-30-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,3,4,7,8 and 0 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 234780-30:
(8*2)+(7*3)+(6*4)+(5*7)+(4*8)+(3*0)+(2*3)+(1*0)=134
134 % 10 = 4
So 234780-30-4 is a valid CAS Registry Number.
234780-30-4Relevant academic research and scientific papers
Phthalazinones
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, (2008/06/13)
Phthalazinones of the formula I in which R1 is 1-4C alkoxy or 1-4C alkoxy substituted by fluorine, R2 is halogen or (cyclo)alkoxy, and R3 is -CnH2n-C(O)R4. These compounds are suitable as bronchial therapeutics and for the treatment of dermatoses.
