18009-23-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 18009-23-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,8,0,0 and 9 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 18009-23:
(7*1)+(6*8)+(5*0)+(4*0)+(3*9)+(2*2)+(1*3)=89
89 % 10 = 9
So 18009-23-9 is a valid CAS Registry Number.
18009-23-9Relevant academic research and scientific papers
Synthesis of Fused Quinazolines
Chaurasia, M. R.,Sharma, Ajay Kumar
, p. 1071 - 1073 (2007/10/02)
6-Bromo-2-hydrazino-3-amine-4(3H)-quinazolinone, 6-bromo-2-ethylamino-4H-3,1-benzothiazin-4-one, 9-bromo-3,4-diphenyl-tetrazepinoquinazolin-7(1H)-one, 2,4-dibromo-6-methylbenzimidazoquinazoline, 2,4-dibromobenzimidazoquinazol
