256409-22-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 256409-22-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,6,4,0 and 9 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 256409-22:
(8*2)+(7*5)+(6*6)+(5*4)+(4*0)+(3*9)+(2*2)+(1*2)=140
140 % 10 = 0
So 256409-22-0 is a valid CAS Registry Number.
256409-22-0Relevant academic research and scientific papers
SUBSTITUTED QUINAZOLINE DERIVATIVES
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Page/Page column 7-8, (2010/02/14)
This invention provides a process for preparing compounds of formula (1) wherein: X is phenyl optionally substituted with one or more substituents selected from the group consisting of halogen, alkyl of 1-6 carbon atoms, alkoxy of 1-6 carbon atoms, hydrox
