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-Hydroxyisophthalic acid
SKU 54705828 · CAS 636-46-4 · HOC6H3-1,3-(CO2H)2 · MW 182.13 -
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4-Hydroxyisoquinoline
SKU 61532966 · CAS 3336-49-0 · C9H7NO · MW 145.16 -
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4-Hydroxyphenylacetic acid
SKU 39793386 · CAS 156-38-7 · HOC6H4CH2COOH · MW 152.15 -
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4-Hydroxypyridine (4-Pyridinol)
SKU 66558004 · CAS 626-64-2 · C5H4N(OH) · MW 95.10 -
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4-Imidazoleacetic acid hydrochloride
SKU 37873531 · CAS 3251-69-2 · C5H6N2O2 · HCl · MW 162.57 -
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4-Iodobenzoic acid
SKU 34629290 · CAS 619-58-9 · C6H4(I)COOH · MW 248.02 -
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4-Iodophenylacetic acid
SKU 79692309 · CAS 1798-06-7 · C8H7IO2 · MW 262.04 -
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4-Mercaptobenzoic acid
SKU 49383024 · CAS 1074-36-8 · HSC6H4CO2H · MW 154.19 -
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4-Methoxybenzyl chloride (contains: potassium carbonate as stabiliser)
SKU 76993818 · CAS 824-94-2 · CH3OC6H4CH2Cl · MW 156.60 -
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4-Methoxyphenethylamine hydrochloride
SKU 90022079 · CAS 645-58-9 · C6H4(OCH3)CH2CH2NH2 . HCl · MW 187.67 -
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4-Methoxyphenyl chloroformate
SKU 89999005 · CAS 7693-41-6 · C8H7ClO3 · MW 186.59 -
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4-Methoxyphenylhydrazine hydrochloride
SKU 45290091 · CAS 19501-58-7 · CH3OC6H4NHNH2·HCl · MW 174.63 -
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4-Methoxyphenylmagnesium Bromide, 1M Solution In THF
SKU 90027245 · CAS 13139-86-1 · CH3OC6H4MgBr · MW 211.34 -
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4-Methyl-2,3,5,6-tetrafluoropyridine
SKU 90032222 · CAS 16297-14-6 · C6H3F4N · MW 165.09 -
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4-Methyl-3-nitrophenol (3-Nitro-p-cresol)
SKU 52961516 · CAS 2042-14-0 · CH3C6H3(NO2)OH · MW 153.14 -
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4-Methylbenzenesulfinic acid sodium salt
SKU 90028924 · CAS 824-79-3 · 4-CH3-C6H4SO2Na · MW 178.18 -
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4-Methylphenylhydrazine hydrochloride
SKU 26758879 · CAS 637-60-5 · CH3C6H4NHNH2 · HCl · MW 158.63 -
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4-Methylsalicylic acid
SKU 90029526 · CAS 50-85-1 · CH3C6H3(OH)CO2H · MW 152.15 -
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4-Methylsulfonylbenzylamine hydrochloride
SKU 16062914 · CAS 98593-51-2 · C8H11NO2S·HCl · MW 221.71 -
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4-Methylumbelliferone
SKU 39596112 · CAS 90-33-5 · C10H8O3 · MW 176.17 -
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4-Methylumbelliferyl alpha-D-galactopyranoside
SKU 26979173 · CAS 38597-12-5 · C16H18O8 · MW 338.31 -
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4-N,N-Diethyl-2-methyl-1,4-phenylenediamine monohydrochloride (CD-2 Developer)
SKU 70717073 · CAS 2051-79-8 · C11H18N2·HCl · MW 214.73 -
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4-Nitro-o-phenylenediamine
SKU 42675126 · CAS 99-56-9 · C6H7N3O2 · MW 153.14 -
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4-Nitroaniline
SKU 17475169 · CAS 100-01-6 · C6H6N2O2 · MW 138.124
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.