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144221-48-7

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144221-48-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 144221-48-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,4,2,2 and 1 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 144221-48:
(8*1)+(7*4)+(6*4)+(5*2)+(4*2)+(3*1)+(2*4)+(1*8)=97
97 % 10 = 7
So 144221-48-7 is a valid CAS Registry Number.

144221-48-7Upstream product

144221-48-7Downstream Products

144221-48-7Relevant academic research and scientific papers

One-pot synthesis of 2,3-dihydro-2,3-disubstituted benzo[g]quinazolin-4(1H)-ones

Kumar,Reddy

, p. 2499 - 2508 (1992)

Condensation of 2H-naphth[2,3-d][3,1]oxazin-2,4 (1H)-dione (1) with schiff bases (2) in acetic acid resulted in the formation of 2,3-dihydro-2,3-diarylbenzo[g]quinazolin-4 (1H)-ones (3). Reaction of 1 with ketoanils generated in situ results in 2,3-dihydr

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