Building Blocks

New Products from Aldrich Chemistry

Featured Building Blocks

In collaboration with K. Barry Sharpless and coworkers, Aldrich Chemistry now offers a variety of sulfonyl fluoride building blocks (Product #′s: ALD00044, ALD00058, ALD00064, ALD00052, ALD00056, ALD00126, and ALD00192). These products have desired reactive properties, such as resistance to oxidation and reduction and the capability to react on water. Additionally, sulfonyl fluorides offer increased stability than comparable sulfonyl halides.

View Details for Aldrich Product No. ALD00044 2-Phenylethenesulfonyl fluoride .................. View Details for Aldrich Product No. ALD00058 5-Bromo-2-methoxybenzenesulfonyl fluoride .................. View Details for Aldrich Product No. ALD00064 2,5-Dimethoxybenzenesulfonyl fluoride .................. View Details for Aldrich Product No. ALD00192 2-Chlorobenzenesulfonyl fluoride

Below is a small selection of over 17,000 new building block products that Sigma-Aldrich has recently introduced to the market. Please use the link below to browse our building blocks online product catalog for a complete listing of new and existing products for your chemistry needs.

View new Building Blocks or All Building Blocks to refine by category, grade, purity, and various physical properties.

See our Online Product Catalog for additional product offerings under Building Blocks.

Product #



Molecular Formula

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901266 Betanin (red beet extract diluted with dextrin) New C24H26N2O13
900972 2-(3-Bromo-4-chloro-6-methyl-1H-pyrrolo[3,2-c]pyridin-1-yl)ethan-1-amine dihydrochloride ≥95% New C10H11BrClN3 · 2HCl
900973 2-(3-Bromo-4-chloro-7-methyl-1H-pyrrolo[3,2-c]pyridin-1-yl)ethan-1-amine dihydrochloride ≥95% New C10H11BrClN3 · 2HCl
900971 2-{3-Bromo-4-chloro-1H-pyrrolo[3,2-c]pyridin-1-yl}ethan-1-amine dihydrochloride 95% New C9H9BrClN3 · 2HCl
900975 2-(4-Chloro-3-iodo-6-methyl-1H-pyrrolo[3,2-c]pyridin-1-yl)ethan-1-amine dihydrochloride ≥95% New C10H11ClIN3 · 2HCl