Building blocks
Our expert organic chemistry teams synthesize stable isotope-labeled synthons for your own compounds. Alsachim offers a wide variety of building blocks including API intermediates from aromatic compounds, amino acids and heterocyclic compounds.
409 products
![[building-blocks] Bromoethane](https://www.alsachim.com/14661-list_image/Bromoethane.jpg)
![[building-blocks] Iodobenzene](https://www.alsachim.com/14638-list_image/Iodobenzene.jpg)
![[building-blocks] 3,4-bis(Benzyloxy)benzaldehyde](https://www.alsachim.com/14636-list_image/3-4-bis-Benzyloxy-benzaldehyde.jpg)
[13C6]-4-Chlorophenyl trifluoromethanesulfonate
Product Number: M417
CAS number: 29540-84-9 unlabeled
![[building-blocks] Fluorobenzene](https://www.alsachim.com/14610-list_image/Fluorobenzene.jpg)
![[reference-standards] L-Leucine](https://www.alsachim.com/14619-list_image/L-Leucine.jpg)
![[building-blocks] (S)-2-Benzyl-5-hydroxy-1,2-dihydropyrido[3,4-b]pyrazin-3(4H)-one](https://www.alsachim.com/14373-list_image/-S-2-Benzyl-5-hydroxy-1-2-dihydropyrido-3-4-b-pyrazin-3-4H-one.jpg)
![[building-blocks] (S)-Methyl-2-(2-hydroxy-3-nitropyridin-4-ylamino)-3-phenylpropanoate](https://www.alsachim.com/14371-list_image/-S-Methyl-2-2-hydroxy-3-nitropyridin-4-ylamino-3-phenylpropanoate.jpg)
(S)-Methyl-2-(2-hydroxy-3-nitropyridin-4-ylamino)-3-phenylpropanoate
Product Number: C322
CAS number: N/A
![[reference-standards] 2-Aminophenol](https://www.alsachim.com/14585-list_image/2-Aminophenol.jpg)
![[reference-standards] Aniline](https://www.alsachim.com/14587-list_image/Aniline.jpg)
![[building-blocks] (E)-N'-(4-(Dimethylamino)benzylidene)benzo[b]thiophene-2-carbohydrazide](https://www.alsachim.com/14365-list_image/-E-N--4-Dimethylamino-benzylidene-benzo-b-thiophene-2-carbohydrazide.jpg)
(E)-N'-(4-(Dimethylamino)benzylidene)benzothiophene-2-carbohydrazide
Product Number: C296
CAS number: N/A
![[building-blocks] (E)-N'-(4-Methoxybenzylidene)benzo[b]thiophene-2-carbohydrazide](https://www.alsachim.com/14364-list_image/-E-N--4-Methoxybenzylidene-benzo-b-thiophene-2-carbohydrazide.jpg)
[15N]-L-Proline
Product Number: M20
CAS number: 147-85-3 unlabeled
Synonyms: (S)-2-Pyrrolidinecarboxylic acid-15N
![[building-blocks] Iodomethane](https://www.alsachim.com/14331-list_image/Iodomethane.jpg)
[13C3,15N]-ß-Alanine
Product Number: M3
CAS number: 285978-07-6
Synonyms: [13C3,15N]-beta-Alanine, 3-Aminopropionic acid-13C3-15N