Category · 2269 products
Building Blocks
Building Blocks are essential organic compounds used in the synthesis of pharmaceuticals, agrochemicals, and advanced materials. These versatile intermediates enable precise molecular construction in research and industrial applications. Molekula stocks a range of Building Blocks with full technical documentation and CoA per batch.
Every product here can be supplied in any quantity. Pack sizes and prices on the product pages are a starting point — tell us what you need and we'll manufacture, source and repack it, from grams to multi-tonne.
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4,4'-Bis(dimethylamino)benzophenone (Michler's ketone)
SKU 38897058 · CAS 90-94-8 · C17H20N2O · MW 268.35 -
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4,4'-Diaminodiphenyl sulfone (Dapsone)
SKU 28069836 · CAS 80-08-0 · C12H12N2O2S · MW 248.3 -
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4,4'-Difluorobenzophenone 99+%
SKU 90028105 · CAS 345-92-6 · (FC6H4)2CO · MW 218.20 -
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4,4'-Dimethoxytritylchloride (DMT-Cl)
SKU 65276715 · CAS 40615-36-9 · C21H19ClO2 · MW 338.83 -
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4,4'-Dipyridyl
SKU 25579154 · CAS 553-26-4 · C10H8N2 · MW 156.18 -
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4,4'-Methylenebis (cyclohexyl isocyanate), Mixture of Isomers, 90%
SKU 90027193 · CAS 5124-30-1 · CH2(C6H10NCO)2 · MW 262.35 -
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4,4'-Methylenebis(phenyl isocyanate)
SKU 90026982 · CAS 101-68-8 · CH2(C6H4NCO)2 · MW 250.25 -
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4,4'-Methylenedianiline
SKU 27282301 · CAS 101-77-9 · C13H14N2 · MW 198.26 -
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4,4'-Methylenedianiline 98 %
SKU 90031875 · CAS 101-77-9 · C13H14N2 · MW 198.26 -
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4,4'-Oxydiphthalic anhydride
SKU 90028091 · CAS 1823-59-2 · C16H6O7 · MW 310.21 -
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4,4'-Oxydiphthalic anhydride (NS)
SKU 90028087 · CAS 1823-59-2 · C16H6O7 · MW 310.21 -
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4,4'-Sulfonyldiphenol (4,4'-Dihydroxydiphenylsulfone)
SKU 25725310 · CAS 80-09-1 · O2S(C6H4OH)2 · MW 250.27 -
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4,5-Dibromo-1H-1,2,3-triazole
SKU 23114418 · CAS 15294-81-2 · C2HBr2N3 · MW 226.9 -
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4,5-Dichloro-2-octyl-isothiazolone
SKU 90026830 · CAS 64359-81-5 · C11H17Cl2NOS · MW 282.22 -
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4,5-Dicyanoimidazole
SKU 18916564 · CAS 1122-28-7 · C5H2N4 · MW 118.10 -
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4,5-Dimethylresorcinol
SKU 31501054 · CAS 527-55-9 · C8H10O2 · MW 138.16 -
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4,5,6-Triaminopyrimidine sulfate hydrate
SKU 78393437 · CAS 6640-23-9 · C4H11N5O5S · MW 241.23 -
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4,6-Dimethoxy-2-methylsulfonylpyrimidine
SKU 72950830 · CAS 113583-35-0 · C7H10N2O4S · MW 218.23 -
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4,6-Dimethoxysalicylaldehyde (4,6-Dimethoxy-2-hydroxybenzaldehyde)
SKU 67209584 · CAS 708-76-9 · HOC6H2(OCH3)2CHO · MW 182.17 -
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4'-Aminoacetophenone
SKU 18300736 · CAS 99-92-3 · H2NC6H4COCH3 · MW 135.16 -
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4'-Chloroacetophenone
SKU 43187122 · CAS 99-91-2 · ClC6H4COCH3 · MW 154.59 -
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4'-Hydroxy-3'-nitroacetophenone
SKU 28698508 · CAS 6322-56-1 · HOC6H3(COCH3)NO2 · MW 181.15 -
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4'-Isobutylacetophenone
SKU 90026401 · CAS 38861-78-8 · C12H16O · MW 176.25 -
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4'-Nitroacetophenone
SKU 89965981 · CAS 100-19-6 · C5H7NOS2 · MW 161.25
Frequently asked
What does Molekula stock in the Building Blocks category?
Molekula stocks a range of Building Blocks products at research, semi-bulk and bulk scale. Browse the full list below or use the search to filter by name or CAS.
Does Molekula provide a CoA for Building Blocks products?
Yes — every batch ships with a Certificate of Analysis. You can also retrieve historical CoAs via the batch lookup on any product page.
Can Molekula supply Building Blocks in bulk quantities?
Bulk and custom pack sizes are available on request. Use the "Request a quote" button on any product page or visit /contact.
Need a quote?
Tell us the product, grade, and quantity — we usually respond within one working day.