Collection: Heterocyclic Building Blocks
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2607009-45-8 | 2-(o-Tolyl)-[1,2,4]triazolo[1,5-c]quinazolin-5(6H)-one
![CAS 2607009-45-8 | 2-(o-Tolyl)-[1,2,4]triazolo[1,5-c]quinazolin-5(6H)-one](//hoffmanchemicals.com/cdn/shop/files/Upscaled_Image_HFC13562_fefb9e4c-8f51-4bbf-954e-00dfcb6f983e.jpg?v=1750836692&width=2400)
2607009-45-8 | 2-(o-Tolyl)-[1,2,4]triazolo[1,5-c]quinazolin-5(6H)-one
- Regular price
- $1,996.00 - $3,194.00
- Sale price
- $1,996.00 - $3,194.00
- Regular price
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886189-00-0 | 2-(4-Methoxyphenyl)-[1,2,4]triazolo[1,5-c]quinazoline-5(6H)-thione
![CAS 886189-00-0 | 2-(4-Methoxyphenyl)-[1,2,4]triazolo[1,5-c]quinazoline-5(6H)-thione](//hoffmanchemicals.com/cdn/shop/files/Upscaled_Image_HFC13561_8e272438-a1c1-48f3-9d72-30bab69d9417.jpg?v=1750836694&width=2400)
886189-00-0 | 2-(4-Methoxyphenyl)-[1,2,4]triazolo[1,5-c]quinazoline-5(6H)-thione
- Regular price
- $1,996.00 - $3,194.00
- Sale price
- $1,996.00 - $3,194.00
- Regular price
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2607009-42-5 | 5-Chloro-2-(4-methoxyphenyl)-[1,2,4]triazolo[1,5-c]quinazoline
![CAS 2607009-42-5 | 5-Chloro-2-(4-methoxyphenyl)-[1,2,4]triazolo[1,5-c]quinazoline](//hoffmanchemicals.com/cdn/shop/files/Upscaled_Image_HFC13560_40503c3f-441c-465f-9af6-33978297d1ba.jpg?v=1750836697&width=2400)
2607009-42-5 | 5-Chloro-2-(4-methoxyphenyl)-[1,2,4]triazolo[1,5-c]quinazoline
- Regular price
- $2,496.00 - $3,994.00
- Sale price
- $2,496.00 - $3,994.00
- Regular price
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726152-18-7 | 2-(4-Methoxyphenyl)-[1,2,4]triazolo[1,5-c]quinazolin-5(6H)-one
![CAS 726152-18-7 | 2-(4-Methoxyphenyl)-[1,2,4]triazolo[1,5-c]quinazolin-5(6H)-one](//hoffmanchemicals.com/cdn/shop/files/Upscaled_Image_HFC13559_e791af22-cf97-4c9f-830a-0aec919daeb4.jpg?v=1750836699&width=2400)
726152-18-7 | 2-(4-Methoxyphenyl)-[1,2,4]triazolo[1,5-c]quinazolin-5(6H)-one
- Regular price
- $1,996.00 - $3,194.00
- Sale price
- $1,996.00 - $3,194.00
- Regular price
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2607009-40-3 | 5-Chloro-2-(1-methyl-1H-pyrazol-4-yl)-[1,2,4]triazolo[1,5-c]quinazoline
![CAS 2607009-40-3 | 5-Chloro-2-(1-methyl-1H-pyrazol-4-yl)-[1,2,4]triazolo[1,5-c]quinazoline](//hoffmanchemicals.com/cdn/shop/files/Upscaled_Image_HFC13558_5145793d-28a3-4f72-8a65-4b411e71e293.jpg?v=1750836701&width=2400)
2607009-40-3 | 5-Chloro-2-(1-methyl-1H-pyrazol-4-yl)-[1,2,4]triazolo[1,5-c]quinazoline
- Regular price
- $2,496.00 - $3,994.00
- Sale price
- $2,496.00 - $3,994.00
- Regular price
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2607009-36-7 | 2-(1-Methyl-1H-pyrazol-4-yl)-[1,2,4]triazolo[1,5-c]quinazolin-5(6H)-one
![CAS 2607009-36-7 | 2-(1-Methyl-1H-pyrazol-4-yl)-[1,2,4]triazolo[1,5-c]quinazolin-5(6H)-one](//hoffmanchemicals.com/cdn/shop/files/Upscaled_Image_HFC13557_119ac5a7-c48f-4124-9b03-985a7fa8baa8.jpg?v=1750836703&width=2400)
2607009-36-7 | 2-(1-Methyl-1H-pyrazol-4-yl)-[1,2,4]triazolo[1,5-c]quinazolin-5(6H)-one
- Regular price
- $1,996.00 - $3,194.00
- Sale price
- $1,996.00 - $3,194.00
- Regular price
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2607009-34-5 | 5-Chloro-2-(3-fluorophenyl)-[1,2,4]triazolo[1,5-c]quinazoline
![CAS 2607009-34-5 | 5-Chloro-2-(3-fluorophenyl)-[1,2,4]triazolo[1,5-c]quinazoline](//hoffmanchemicals.com/cdn/shop/files/Upscaled_Image_HFC13556_f77a7a80-8ffd-45ea-903a-c04a405c15e5.jpg?v=1750836705&width=2400)
2607009-34-5 | 5-Chloro-2-(3-fluorophenyl)-[1,2,4]triazolo[1,5-c]quinazoline
- Regular price
- $2,496.00 - $3,994.00
- Sale price
- $2,496.00 - $3,994.00
- Regular price
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899723-95-6 | 2-(3-Fuorophenyl)-[1,2,4]triazolo[1,5-c]quinazolin-5(6H)-one
![CAS 899723-95-6 | 2-(3-Fuorophenyl)-[1,2,4]triazolo[1,5-c]quinazolin-5(6H)-one](//hoffmanchemicals.com/cdn/shop/files/Upscaled_Image_HFC13555_eb8c69a9-3191-411e-a85b-bd63b2f76cb9.jpg?v=1750836708&width=2400)
899723-95-6 | 2-(3-Fuorophenyl)-[1,2,4]triazolo[1,5-c]quinazolin-5(6H)-one
- Regular price
- $1,896.00 - $4,854.00
- Sale price
- $1,896.00 - $4,854.00
- Regular price
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![CAS 2607009-45-8 | 2-(o-Tolyl)-[1,2,4]triazolo[1,5-c]quinazolin-5(6H)-one](http://hoffmanchemicals.com/cdn/shop/files/Upscaled_Image_HFC13562_fefb9e4c-8f51-4bbf-954e-00dfcb6f983e.jpg?v=1750836692&width=2400)
![CAS 886189-00-0 | 2-(4-Methoxyphenyl)-[1,2,4]triazolo[1,5-c]quinazoline-5(6H)-thione](http://hoffmanchemicals.com/cdn/shop/files/Upscaled_Image_HFC13561_8e272438-a1c1-48f3-9d72-30bab69d9417.jpg?v=1750836694&width=2400)
![CAS 2607009-42-5 | 5-Chloro-2-(4-methoxyphenyl)-[1,2,4]triazolo[1,5-c]quinazoline](http://hoffmanchemicals.com/cdn/shop/files/Upscaled_Image_HFC13560_40503c3f-441c-465f-9af6-33978297d1ba.jpg?v=1750836697&width=2400)
![CAS 726152-18-7 | 2-(4-Methoxyphenyl)-[1,2,4]triazolo[1,5-c]quinazolin-5(6H)-one](http://hoffmanchemicals.com/cdn/shop/files/Upscaled_Image_HFC13559_e791af22-cf97-4c9f-830a-0aec919daeb4.jpg?v=1750836699&width=2400)
![CAS 2607009-40-3 | 5-Chloro-2-(1-methyl-1H-pyrazol-4-yl)-[1,2,4]triazolo[1,5-c]quinazoline](http://hoffmanchemicals.com/cdn/shop/files/Upscaled_Image_HFC13558_5145793d-28a3-4f72-8a65-4b411e71e293.jpg?v=1750836701&width=2400)
![CAS 2607009-36-7 | 2-(1-Methyl-1H-pyrazol-4-yl)-[1,2,4]triazolo[1,5-c]quinazolin-5(6H)-one](http://hoffmanchemicals.com/cdn/shop/files/Upscaled_Image_HFC13557_119ac5a7-c48f-4124-9b03-985a7fa8baa8.jpg?v=1750836703&width=2400)
![CAS 2607009-34-5 | 5-Chloro-2-(3-fluorophenyl)-[1,2,4]triazolo[1,5-c]quinazoline](http://hoffmanchemicals.com/cdn/shop/files/Upscaled_Image_HFC13556_f77a7a80-8ffd-45ea-903a-c04a405c15e5.jpg?v=1750836705&width=2400)
![CAS 899723-95-6 | 2-(3-Fuorophenyl)-[1,2,4]triazolo[1,5-c]quinazolin-5(6H)-one](http://hoffmanchemicals.com/cdn/shop/files/Upscaled_Image_HFC13555_eb8c69a9-3191-411e-a85b-bd63b2f76cb9.jpg?v=1750836708&width=2400)