Collection: Heterocyclic Building Blocks
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1309191-88-5 | N-(4-Chloro-1-oxophthalazin-2(1H)-yl)-2-(3,5-difluorophenyl)acetamide
1309191-88-5 | N-(4-Chloro-1-oxophthalazin-2(1H)-yl)-2-(3,5-difluorophenyl)acetamide
- Regular price
- $1,997.00 - $3,195.00
- Sale price
- $1,997.00 - $3,195.00
- Regular price
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1309195-40-1 | 2-Amino-4-chlorophthalazin-1(2H)-one
1309195-40-1 | 2-Amino-4-chlorophthalazin-1(2H)-one
- Regular price
- $1,797.00 - $4,600.00
- Sale price
- $1,797.00 - $4,600.00
- Regular price
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1309195-38-7 | 2-Amino-4-phenylphthalazin-1(2H)-one
1309195-38-7 | 2-Amino-4-phenylphthalazin-1(2H)-one
- Regular price
- $1,697.00 - $2,715.00
- Sale price
- $1,697.00 - $2,715.00
- Regular price
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1309195-35-4 | 2-Amino-4-(trifluoromethyl)phthalazin-1(2H)-one
1309195-35-4 | 2-Amino-4-(trifluoromethyl)phthalazin-1(2H)-one
- Regular price
- $1,989.00 - $3,182.00
- Sale price
- $1,989.00 - $3,182.00
- Regular price
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863602-02-2 | 4-(Trifluoromethyl)phthalazin-1(2H)-one
863602-02-2 | 4-(Trifluoromethyl)phthalazin-1(2H)-one
- Regular price
- $1,789.00 - $4,580.00
- Sale price
- $1,789.00 - $4,580.00
- Regular price
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76284-63-4 | 3-Hydroxy-3-(trifluoromethyl)isobenzofuran-1(3H)-one
76284-63-4 | 3-Hydroxy-3-(trifluoromethyl)isobenzofuran-1(3H)-one
- Regular price
- $1,589.00 - $2,542.00
- Sale price
- $1,589.00 - $2,542.00
- Regular price
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1309195-34-3 | 5-Amino-7-phenylthieno[2,3-d]pyridazin-4(5H)-one
![1309195-34-3 | 5-Amino-7-phenylthieno[2,3-d]pyridazin-4(5H)-one - Hoffman Fine Chemicals](//hoffmanchemicals.com/cdn/shop/files/Image_1309195-34-3_ceb0dd2e-f436-48f0-8364-3587ac84c80a.jpg?v=1731795654&width=300)
1309195-34-3 | 5-Amino-7-phenylthieno[2,3-d]pyridazin-4(5H)-one
- Regular price
- $1,794.00 - $4,593.00
- Sale price
- $1,794.00 - $4,593.00
- Regular price
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80727-84-0 | 7-Phenylthieno[2,3-d]pyridazin-4(5H)-one
![80727-84-0 | 7-Phenylthieno[2,3-d]pyridazin-4(5H)-one - Hoffman Fine Chemicals](//hoffmanchemicals.com/cdn/shop/files/Image_80727-84-0_265033d5-2329-4feb-89a3-d257956fa850.jpg?v=1731795650&width=300)
80727-84-0 | 7-Phenylthieno[2,3-d]pyridazin-4(5H)-one
- Regular price
- $1,594.00 - $4,081.00
- Sale price
- $1,594.00 - $4,081.00
- Regular price
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![1309195-34-3 | 5-Amino-7-phenylthieno[2,3-d]pyridazin-4(5H)-one - Hoffman Fine Chemicals](http://hoffmanchemicals.com/cdn/shop/files/Image_1309195-34-3_ceb0dd2e-f436-48f0-8364-3587ac84c80a.jpg?v=1731795654&width=300)
![80727-84-0 | 7-Phenylthieno[2,3-d]pyridazin-4(5H)-one - Hoffman Fine Chemicals](http://hoffmanchemicals.com/cdn/shop/files/Image_80727-84-0_265033d5-2329-4feb-89a3-d257956fa850.jpg?v=1731795650&width=300)