Collection: Heterocyclic Building Blocks
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2091454-01-0 | {2-Oxaspiro[4.4]nonan-3-yl}methanesulfonyl chloride
![CAS RN 2091454-01-0 | {2-Oxaspiro[4.4]nonan-3-yl}methanesulfonyl chloride | MFCD31665812](//hoffmanchemicals.com/cdn/shop/files/Image_2091454-01-0_437013fa-e2e0-43ff-8281-7480de77c26f.jpg?v=1768335630&width=2400)
2091454-01-0 | {2-Oxaspiro[4.4]nonan-3-yl}methanesulfonyl chloride
- Regular price
- $1,794.00
- Sale price
- $1,794.00
- Regular price
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2137746-17-7 | tert-Butyl 7-((chlorosulfonyl)methyl)-6-oxa-2-azaspiro[3.4]octane-2-carboxylate
![CAS RN 2137746-17-7 | tert-Butyl 7-((chlorosulfonyl)methyl)-6-oxa-2-azaspiro[3.4]octane-2-carboxylate | MFCD31453597](//hoffmanchemicals.com/cdn/shop/files/Image_2137746-17-7_e114d266-b9cf-43a9-9675-830c534bf0de.jpg?v=1768335692&width=2400)
2137746-17-7 | tert-Butyl 7-((chlorosulfonyl)methyl)-6-oxa-2-azaspiro[3.4]octane-2-carboxylate
- Regular price
- $1,794.00
- Sale price
- $1,794.00
- Regular price
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2091952-85-9 | {6-Oxaspiro[3.4]octan-7-yl}methanesulfonyl chloride
![CAS RN 2091952-85-9 | {6-Oxaspiro[3.4]octan-7-yl}methanesulfonyl chloride | MFCD30730733](//hoffmanchemicals.com/cdn/shop/files/Image_2091952-85-9_2c42e090-5abf-4cb9-9a81-f0c0a4c61077.jpg?v=1768335691&width=2400)
2091952-85-9 | {6-Oxaspiro[3.4]octan-7-yl}methanesulfonyl chloride
- Regular price
- $1,794.00
- Sale price
- $1,794.00
- Regular price
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2092189-36-9 | (5-Oxaspiro[2.4]heptan-6-yl)methanesulfonyl chloride
![CAS RN 2092189-36-9 | (5-Oxaspiro[2.4]heptan-6-yl)methanesulfonyl chloride | MFCD31810532](//hoffmanchemicals.com/cdn/shop/files/Image_2092189-36-9_edaf9b5f-77db-421e-8f7c-a04a9224a5c8.jpg?v=1768335615&width=2400)
2092189-36-9 | (5-Oxaspiro[2.4]heptan-6-yl)methanesulfonyl chloride
- Regular price
- $1,794.00
- Sale price
- $1,794.00
- Regular price
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2418692-73-4 | (2,2-Difluoro-6-oxaspiro[3.4]octan-7-yl)methanesulfonyl chloride
![CAS RN 2418692-73-4 | (2,2-Difluoro-6-oxaspiro[3.4]octan-7-yl)methanesulfonyl chloride | MFCD32679236](//hoffmanchemicals.com/cdn/shop/files/Image_2418692-73-4_7955b75b-8abf-4e70-b08d-0ffac4b8dd5e.jpg?v=1768335614&width=2400)
2418692-73-4 | (2,2-Difluoro-6-oxaspiro[3.4]octan-7-yl)methanesulfonyl chloride
- Regular price
- $1,794.00
- Sale price
- $1,794.00
- Regular price
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2413882-87-6 | 9-(tert-Butoxycarbonyl)-1,4-dioxa-9-azaspiro[5.5]undecane-2-carboxylic acid
![CAS RN 2413882-87-6 | 9-(tert-Butoxycarbonyl)-1,4-dioxa-9-azaspiro[5.5]undecane-2-carboxylic acid | MFCD32662645](//hoffmanchemicals.com/cdn/shop/files/Image_2413882-87-6_fdb46d60-3e64-45d4-9b4c-ec141abacec9.jpg?v=1768335619&width=2400)
2413882-87-6 | 9-(tert-Butoxycarbonyl)-1,4-dioxa-9-azaspiro[5.5]undecane-2-carboxylic acid
- Regular price
- $1,994.00
- Sale price
- $1,994.00
- Regular price
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1251007-93-8 | 9-(tert-Butoxycarbonyl)-1-oxa-9-azaspiro[5.5]undecane-2-carboxylic acid
![CAS RN 1251007-93-8 | 9-(tert-Butoxycarbonyl)-1-oxa-9-azaspiro[5.5]undecane-2-carboxylic acid | MFCD17016164](//hoffmanchemicals.com/cdn/shop/files/Image_1251007-93-8_583327e9-61d7-476e-a139-dc8766e0b39d.jpg?v=1768335618&width=2400)
1251007-93-8 | 9-(tert-Butoxycarbonyl)-1-oxa-9-azaspiro[5.5]undecane-2-carboxylic acid
- Regular price
- $1,994.00 - $3,190.00
- Sale price
- $1,994.00 - $3,190.00
- Regular price
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1251002-28-4 | 2-Boc-5-oxa-2-aza-spiro-[3.5]nonane-6-carboxylic acid
![CAS RN 1251002-28-4 | 2-Boc-5-oxa-2-aza-spiro-[3.5]nonane-6-carboxylic acid | MFCD14581239](//hoffmanchemicals.com/cdn/shop/files/Image_1251002-28-4_eedc661d-98c5-4b85-b40e-ef6742610a4a.jpg?v=1768335617&width=2400)
1251002-28-4 | 2-Boc-5-oxa-2-aza-spiro-[3.5]nonane-6-carboxylic acid
- Regular price
- $1,994.00 - $3,190.00
- Sale price
- $1,994.00 - $3,190.00
- Regular price
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![CAS RN 2091454-01-0 | {2-Oxaspiro[4.4]nonan-3-yl}methanesulfonyl chloride | MFCD31665812](http://hoffmanchemicals.com/cdn/shop/files/Image_2091454-01-0_437013fa-e2e0-43ff-8281-7480de77c26f.jpg?v=1768335630&width=2400)
![CAS RN 2137746-17-7 | tert-Butyl 7-((chlorosulfonyl)methyl)-6-oxa-2-azaspiro[3.4]octane-2-carboxylate | MFCD31453597](http://hoffmanchemicals.com/cdn/shop/files/Image_2137746-17-7_e114d266-b9cf-43a9-9675-830c534bf0de.jpg?v=1768335692&width=2400)
![CAS RN 2091952-85-9 | {6-Oxaspiro[3.4]octan-7-yl}methanesulfonyl chloride | MFCD30730733](http://hoffmanchemicals.com/cdn/shop/files/Image_2091952-85-9_2c42e090-5abf-4cb9-9a81-f0c0a4c61077.jpg?v=1768335691&width=2400)
![CAS RN 2092189-36-9 | (5-Oxaspiro[2.4]heptan-6-yl)methanesulfonyl chloride | MFCD31810532](http://hoffmanchemicals.com/cdn/shop/files/Image_2092189-36-9_edaf9b5f-77db-421e-8f7c-a04a9224a5c8.jpg?v=1768335615&width=2400)
![CAS RN 2418692-73-4 | (2,2-Difluoro-6-oxaspiro[3.4]octan-7-yl)methanesulfonyl chloride | MFCD32679236](http://hoffmanchemicals.com/cdn/shop/files/Image_2418692-73-4_7955b75b-8abf-4e70-b08d-0ffac4b8dd5e.jpg?v=1768335614&width=2400)
![CAS RN 2413882-87-6 | 9-(tert-Butoxycarbonyl)-1,4-dioxa-9-azaspiro[5.5]undecane-2-carboxylic acid | MFCD32662645](http://hoffmanchemicals.com/cdn/shop/files/Image_2413882-87-6_fdb46d60-3e64-45d4-9b4c-ec141abacec9.jpg?v=1768335619&width=2400)
![CAS RN 1251007-93-8 | 9-(tert-Butoxycarbonyl)-1-oxa-9-azaspiro[5.5]undecane-2-carboxylic acid | MFCD17016164](http://hoffmanchemicals.com/cdn/shop/files/Image_1251007-93-8_583327e9-61d7-476e-a139-dc8766e0b39d.jpg?v=1768335618&width=2400)
![CAS RN 1251002-28-4 | 2-Boc-5-oxa-2-aza-spiro-[3.5]nonane-6-carboxylic acid | MFCD14581239](http://hoffmanchemicals.com/cdn/shop/files/Image_1251002-28-4_eedc661d-98c5-4b85-b40e-ef6742610a4a.jpg?v=1768335617&width=2400)