![](//www.lookchem.com/300w/casimage/2011-02-23-12/844439-26-5.gif)
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2H-1-Benzopyran-2-one, 4-hydroxy-3-(1H-1,2,4-triazol-3-ylazo)-
CAS:844439-26-5
Formula:C11H7N5O3
![](//file1.lookchem.com/300w/substances/2022-03-07-03/87fa78fc-4cb0-4753-8182-d0fcff9d12c8.png)
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4H-1,2,3-Triazolo[4,5-c]pyridin-4-one, 1,5-dihydro-1-(4-nitrophenyl)-
CAS:847455-67-8
Formula:C11H7N5O3
![](//www.lookchem.com/300w/casimage/2011-02-22-23/189500-36-5.gif)
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1,2,4-Triazolo[4,3-b]pyridazin-6(5H)-one, 3-(4-nitrophenyl)-
CAS:189500-36-5
Formula:C11H7N5O3
![](//file1.lookchem.com/300w/substances/2022-03-06-09/cd07fd50-0bec-4921-82f1-b35182b8b18c.png)
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4H-Pyrazolo[3,4-d]pyrimidin-4-one, 1,5-dihydro-6-(4-nitrophenyl)-
CAS:21314-14-7
Formula:C11H7N5O3
![](//file1.lookchem.com/300w/substances/2022-06-04-05/8a0046ac-b4d4-44cd-921b-9ab7a69fa7ab.png)
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4H-Pyrazolo[3,4-d]pyrimidin-4-one, 1,5-dihydro-1-(2-nitrophenyl)-
CAS:65973-97-9
Formula:C11H7N5O3
![](//file1.lookchem.com/300w/substances/2022-02-24-10/0d761ae6-08cf-4a59-becb-5469a85c3b51.png)
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4H-Pyrazolo[3,4-d]pyrimidin-4-one, 1,5-dihydro-1-(3-nitrophenyl)-
CAS:65973-98-0
Formula:C11H7N5O3
![](//file1.lookchem.com/300w/substances/2022-03-07-12/70ad78a5-092c-4664-bb42-17a185131137.png)
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4H-Pyrazolo[3,4-d]pyrimidin-4-one, 1,5-dihydro-1-(4-nitrophenyl)-
CAS:65973-99-1
Formula:C11H7N5O3
![](//file1.lookchem.com/300w/substances/2022-03-31-07/c5f5ef38-5c07-4e02-a13c-0c3e79c0db62.png)
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6-(4-nitrophenoxy)-5H-purine
CAS:66085-18-5
Formula:C11H7N5O3
![](//www.lookchem.com/300w/casimage/2011-02-24-19/686333-44-8.gif)
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Imidazo[1,5-a]quinazoline-3-carboxamide, 7-nitro-
CAS:686333-44-8
Formula:C11H7N5O3
![](//www.lookchem.com/300w/casimage/2011-02-24-20/881543-59-5.gif)
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1,4-Naphthalenedione, 2-azido-3-(methylnitrosoamino)-
CAS:881543-59-5
Formula:C11H7N5O3