123434-55-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 123434-55-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,3,4,3 and 4 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 123434-55:
(8*1)+(7*2)+(6*3)+(5*4)+(4*3)+(3*4)+(2*5)+(1*5)=99
99 % 10 = 9
So 123434-55-9 is a valid CAS Registry Number.
123434-55-9Relevant academic research and scientific papers
6,8-Dibromo-2-methyl-1,3-4(3H)-quinazolinones
Ossmann, A. E.,El-Zahabi, M. M.,El-Hakim, A. E.,Osman, A. N.
, p. 113 - 114 (2007/10/02)
Hydrazinolysis of 6,8-dibromo-2-methyl-3,1-benzoxazin-4-(H)-one (1) afforded the 3-amino-6,8-dibromo-2-methyl-1,3,4(3H)-quinazoline (2a).Acylation of the latter with acetic anhydride and benzoyl chloride yielded the corresponding acetyl and benzoyl deriva
