180250-47-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 180250-47-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,0,2,5 and 0 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 180250-47:
(8*1)+(7*8)+(6*0)+(5*2)+(4*5)+(3*0)+(2*4)+(1*7)=109
109 % 10 = 9
So 180250-47-9 is a valid CAS Registry Number.
180250-47-9Relevant academic research and scientific papers
Bromination of 2-/4-arylamino-1,4-/1,2-naphthoquinones with ethylbromide and DMSO
Kallmayer,Doerr
, p. 117 - 124 (2007/10/03)
2-/4-Arylamino-1,4-/1,2-naphthoquinones 4, 6, 7 and 13 are brominated with ethylbromide/DMSO to give 2-/4-arylamino-3-bromo-1,4-/1,2-naphthoquinones 2, 5, 8 and 14. 2-/4-(N-alkyl-arylamino)-1,4/1,2-naphthoquinones 6a and 13 are arylbrominated too.
