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852867-30-2

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852867-30-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 852867-30-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,2,8,6 and 7 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 852867-30:
(8*8)+(7*5)+(6*2)+(5*8)+(4*6)+(3*7)+(2*3)+(1*0)=202
202 % 10 = 2
So 852867-30-2 is a valid CAS Registry Number.

852867-30-2Upstream product

852867-30-2Relevant articles and documents

Reduction of indolo[2,3-b]quinoxalines

Engqvist, Robert,Stensland, Birgitta,Bergman, Jan

, p. 4495 - 4500 (2005)

Reduction of indolo[2,3-b]quinoxalines with zinc in the presence of an anhydride gave N,N-diacyl trapped 6,11-dihydroindolo[2,3-b]quinoxalines in 43-92% yields. When the reduction with zinc was performed in TFA/TFAA, an unexpected ring opened product was isolated in 49% yield. The structure of this product could be identified as 1,2-dihydro-1-trifluoroacetyl-3-[(2- trifluoroacetylamino)phenyl]quinoxaline.

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