Collection: Heterocyclic Building Blocks
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144928-26-7 | 3-(Thiophen-3-yl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine
![CAS RN 144928-26-7 | 3-(Thiophen-3-yl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine](//hoffmanchemicals.com/cdn/shop/files/Image_144928-26-7_b66f07eb-204c-4a40-8637-d2b36999de9b.jpg?v=1752386892&width=2400)
144928-26-7 | 3-(Thiophen-3-yl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine
- Regular price
- $1,498.00 - $3,744.00
- Sale price
- $1,498.00 - $3,744.00
- Regular price
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2167039-29-2 | 3-(1-Methyl-1H-pyrazol-4-yl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine
![CAS RN 2167039-29-2 | 3-(1-Methyl-1H-pyrazol-4-yl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine](//hoffmanchemicals.com/cdn/shop/files/Image_2167039-29-2_e75478ec-e0bf-420b-8e43-bb9b67d9bdb9.jpg?v=1752386888&width=2400)
2167039-29-2 | 3-(1-Methyl-1H-pyrazol-4-yl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine
- Regular price
- $1,498.00 - $3,744.00
- Sale price
- $1,498.00 - $3,744.00
- Regular price
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2766792-61-2 | 3-(Quinolin-3-yl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine
![CAS RN 2766792-61-2 | 3-(Quinolin-3-yl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine](//hoffmanchemicals.com/cdn/shop/files/Image_2766792-61-2_e13323fe-7313-4dc7-b963-7dcd15280698.jpg?v=1752386884&width=2400)
2766792-61-2 | 3-(Quinolin-3-yl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine
- Regular price
- $1,398.00 - $3,494.00
- Sale price
- $1,398.00 - $3,494.00
- Regular price
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1092789-08-6 | 3-(Benzo[d][1,3]dioxol-5-yl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine
![CAS RN 1092789-08-6 | 3-(Benzo[d][1,3]dioxol-5-yl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine](//hoffmanchemicals.com/cdn/shop/files/Image_1092789-08-6_b2912219-004e-4eeb-bcf3-e76274ae465c.jpg?v=1752386881&width=2400)
1092789-08-6 | 3-(Benzo[d][1,3]dioxol-5-yl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine
- Regular price
- $1,398.00 - $3,494.00
- Sale price
- $1,398.00 - $3,494.00
- Regular price
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2766792-59-8 | N-(4-(4-Amino-1H-pyrazolo[3,4-d]pyrimidin-3-yl)phenyl)acetamide
![CAS RN 2766792-59-8 | N-(4-(4-Amino-1H-pyrazolo[3,4-d]pyrimidin-3-yl)phenyl)acetamide](//hoffmanchemicals.com/cdn/shop/files/Image_2766792-59-8_04c3b15d-6d1d-49df-9ead-aef541cb63db.jpg?v=1752386875&width=2400)
2766792-59-8 | N-(4-(4-Amino-1H-pyrazolo[3,4-d]pyrimidin-3-yl)phenyl)acetamide
- Regular price
- $1,398.00 - $3,494.00
- Sale price
- $1,398.00 - $3,494.00
- Regular price
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2766792-58-7 | 4-(4-Amino-1H-pyrazolo[3,4-d]pyrimidin-3-yl)-N-methylbenzamide
![CAS RN 2766792-58-7 | 4-(4-Amino-1H-pyrazolo[3,4-d]pyrimidin-3-yl)-N-methylbenzamide](//hoffmanchemicals.com/cdn/shop/files/Image_2766792-58-7_8d5773dc-2231-4124-909f-8349e51d9809.jpg?v=1752386871&width=2400)
2766792-58-7 | 4-(4-Amino-1H-pyrazolo[3,4-d]pyrimidin-3-yl)-N-methylbenzamide
- Regular price
- $1,398.00 - $3,494.00
- Sale price
- $1,398.00 - $3,494.00
- Regular price
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1408087-64-8 | 3-(3-Fluoro-4-isopropoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine
![CAS RN 1408087-64-8 | 3-(3-Fluoro-4-isopropoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine | MFCD28502396](//hoffmanchemicals.com/cdn/shop/files/Image_1408087-64-8_76a32044-5e91-455b-90b2-a8209dcece5d.jpg?v=1752386868&width=2400)
1408087-64-8 | 3-(3-Fluoro-4-isopropoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine
- Regular price
- $1,598.00 - $2,597.00
- Sale price
- $1,598.00 - $2,597.00
- Regular price
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2766792-56-5 | 3-(4-Methoxy-3-methylphenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine
![CAS RN 2766792-56-5 | 3-(4-Methoxy-3-methylphenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine](//hoffmanchemicals.com/cdn/shop/files/Image_2766792-56-5_983e516d-f716-4a8f-9809-8ce311e851bd.jpg?v=1752386865&width=2400)
2766792-56-5 | 3-(4-Methoxy-3-methylphenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine
- Regular price
- $1,398.00 - $3,494.00
- Sale price
- $1,398.00 - $3,494.00
- Regular price
-
![CAS RN 144928-26-7 | 3-(Thiophen-3-yl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine](http://hoffmanchemicals.com/cdn/shop/files/Image_144928-26-7_b66f07eb-204c-4a40-8637-d2b36999de9b.jpg?v=1752386892&width=2400)
![CAS RN 2167039-29-2 | 3-(1-Methyl-1H-pyrazol-4-yl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine](http://hoffmanchemicals.com/cdn/shop/files/Image_2167039-29-2_e75478ec-e0bf-420b-8e43-bb9b67d9bdb9.jpg?v=1752386888&width=2400)
![CAS RN 2766792-61-2 | 3-(Quinolin-3-yl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine](http://hoffmanchemicals.com/cdn/shop/files/Image_2766792-61-2_e13323fe-7313-4dc7-b963-7dcd15280698.jpg?v=1752386884&width=2400)
![CAS RN 1092789-08-6 | 3-(Benzo[d][1,3]dioxol-5-yl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine](http://hoffmanchemicals.com/cdn/shop/files/Image_1092789-08-6_b2912219-004e-4eeb-bcf3-e76274ae465c.jpg?v=1752386881&width=2400)
![CAS RN 2766792-59-8 | N-(4-(4-Amino-1H-pyrazolo[3,4-d]pyrimidin-3-yl)phenyl)acetamide](http://hoffmanchemicals.com/cdn/shop/files/Image_2766792-59-8_04c3b15d-6d1d-49df-9ead-aef541cb63db.jpg?v=1752386875&width=2400)
![CAS RN 2766792-58-7 | 4-(4-Amino-1H-pyrazolo[3,4-d]pyrimidin-3-yl)-N-methylbenzamide](http://hoffmanchemicals.com/cdn/shop/files/Image_2766792-58-7_8d5773dc-2231-4124-909f-8349e51d9809.jpg?v=1752386871&width=2400)
![CAS RN 1408087-64-8 | 3-(3-Fluoro-4-isopropoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine | MFCD28502396](http://hoffmanchemicals.com/cdn/shop/files/Image_1408087-64-8_76a32044-5e91-455b-90b2-a8209dcece5d.jpg?v=1752386868&width=2400)
![CAS RN 2766792-56-5 | 3-(4-Methoxy-3-methylphenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine](http://hoffmanchemicals.com/cdn/shop/files/Image_2766792-56-5_983e516d-f716-4a8f-9809-8ce311e851bd.jpg?v=1752386865&width=2400)