Collection: Heterocyclic Building Blocks
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2384102-25-2 | 2-Chloro-2,5,6,7-tetrahydro-1H-cyclopenta[b]pyrazine
![CAS 2384102-25-2 | 2-Chloro-2,5,6,7-tetrahydro-1H-cyclopenta[b]pyrazine](//hoffmanchemicals.com/cdn/shop/files/Upscaled_Image_HFC8921_945893fe-6f5b-4ce9-adb0-8bd93866475a.jpg?v=1753790720&width=2400)
2384102-25-2 | 2-Chloro-2,5,6,7-tetrahydro-1H-cyclopenta[b]pyrazine
- Regular price
- $2,371.00 - $6,070.00
- Sale price
- $2,371.00 - $6,070.00
- Regular price
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2296171-62-3 | 1,5,6,7-Tetrahydro-2H-cyclopenta[b]pyrazin-2-one
![CAS 2296171-62-3 | 1,5,6,7-Tetrahydro-2H-cyclopenta[b]pyrazin-2-one](//hoffmanchemicals.com/cdn/shop/files/Upscaled_Image_HFC8920_d110dbc8-cc9b-4861-a167-d855ea6c3900.jpg?v=1753790722&width=2400)
2296171-62-3 | 1,5,6,7-Tetrahydro-2H-cyclopenta[b]pyrazin-2-one
- Regular price
- $1,996.00 - $5,110.00
- Sale price
- $1,996.00 - $5,110.00
- Regular price
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1500349-55-2 | 2-Iodo-4,5-dimethyloxazole
1500349-55-2 | 2-Iodo-4,5-dimethyloxazole
- Regular price
- $1,996.00 - $3,194.00
- Sale price
- $1,996.00 - $3,194.00
- Regular price
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1053655-59-6 | 1-(Tetrahydro-2H-pyran-2-yl)-1H-indazol-6-amine
1053655-59-6 | 1-(Tetrahydro-2H-pyran-2-yl)-1H-indazol-6-amine
- Regular price
- $1,746.00 - $5,588.00
- Sale price
- $1,746.00 - $5,588.00
- Regular price
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150187-67-0 | 6-Nitro-1-(tetrahydro-2H-pyran-2-yl)-1H-indazole
150187-67-0 | 6-Nitro-1-(tetrahydro-2H-pyran-2-yl)-1H-indazole
- Regular price
- $1,746.00 - $4,470.00
- Sale price
- $1,746.00 - $4,470.00
- Regular price
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2241499-39-6 | 1-(Tetrahydro-2H-pyran-2-yl)-1H-indazol-6-ol
2241499-39-6 | 1-(Tetrahydro-2H-pyran-2-yl)-1H-indazol-6-ol
- Regular price
- $1,746.00 - $5,588.00
- Sale price
- $1,746.00 - $5,588.00
- Regular price
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1194377-14-4 | 1-Cyclopentyl-4-iodo-1H-pyrazole
1194377-14-4 | 1-Cyclopentyl-4-iodo-1H-pyrazole
- Regular price
- $1,246.00 - $5,105.00
- Sale price
- $1,246.00 - $5,105.00
- Regular price
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113511-27-6 | 2-Chloro-6,7-dihydro-5H-cyclopenta[b]pyridine-3-carbonitrile
![CAS 113511-27-6 | 2-Chloro-6,7-dihydro-5H-cyclopenta[b]pyridine-3-carbonitrile | MFCD04034283](//hoffmanchemicals.com/cdn/shop/files/Upscaled_Image_HFC8904_12aebaac-bb1e-4a0c-bb92-388b15d28d48.jpg?v=1753790766&width=2400)
113511-27-6 | 2-Chloro-6,7-dihydro-5H-cyclopenta[b]pyridine-3-carbonitrile
- Regular price
- $1,621.00 - $5,188.00
- Sale price
- $1,621.00 - $5,188.00
- Regular price
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![CAS 2384102-25-2 | 2-Chloro-2,5,6,7-tetrahydro-1H-cyclopenta[b]pyrazine](http://hoffmanchemicals.com/cdn/shop/files/Upscaled_Image_HFC8921_945893fe-6f5b-4ce9-adb0-8bd93866475a.jpg?v=1753790720&width=2400)
![CAS 2296171-62-3 | 1,5,6,7-Tetrahydro-2H-cyclopenta[b]pyrazin-2-one](http://hoffmanchemicals.com/cdn/shop/files/Upscaled_Image_HFC8920_d110dbc8-cc9b-4861-a167-d855ea6c3900.jpg?v=1753790722&width=2400)
![CAS 113511-27-6 | 2-Chloro-6,7-dihydro-5H-cyclopenta[b]pyridine-3-carbonitrile | MFCD04034283](http://hoffmanchemicals.com/cdn/shop/files/Upscaled_Image_HFC8904_12aebaac-bb1e-4a0c-bb92-388b15d28d48.jpg?v=1753790766&width=2400)