![[building-blocks] Imidazolidin-2-one](https://www.alsachim.com/14743-list_image/Imidazolidin-2-one.jpg)
Imidazolidin-2-one
Product Number: S749
CAS number: 120-93-4
Synonyms: 2-Imidazolidone, N,N'-Ethyleneurea
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
![[reference-standards] 2-Hydroxyphenylacetic acid](https://www.alsachim.com/14746-list_image/2-Hydroxyphenylacetic-acid.jpg)
2-Hydroxyphenylacetic acid
Product Number: S755
CAS number: 614-75-5
Synonyms: o-Hydroxyphenylacetic acid
[13C6]-2-Hydroxyphenylacetic acid
Product Number: M437
CAS number: 614-75-5 unlabeled
Synonyms: o-Hydroxyphenylacetic acid-13C6
[13C6]-L-threo-(2S,3R)-3-(3,4-Dibenzyloxyophenyl)serine
Product Number: C975
CAS number: 106887-48-3 unlabeled
![[building-blocks] 2-Chloromandelic acid](https://www.alsachim.com/14716-list_image/2-Chloromandelic-acid.jpg)
![[building-blocks] 4-Benzyloxy-3-methoxybenzaldehyde](https://www.alsachim.com/14714-list_image/4-Benzyloxy-3-methoxybenzaldehyde.jpg)
![[building-blocks] 2-chloro-3-hydroxy-4-methoxybenzoic acid](https://www.alsachim.com/14709-list_image/2-chloro-3-hydroxy-4-methoxybenzoic-acid.jpg)
![[building-blocks] Piperazine anhydrous](https://www.alsachim.com/14693-list_image/Piperazine-anhydrous.jpg)
![[building-blocks] Morpholine](https://www.alsachim.com/14689-list_image/Morpholine.jpg)
![[building-blocks] N-(tert-Butyloxycarbonyl)-phenylalanine cesium salt](https://www.alsachim.com/14672-list_image/N-tert-Butyloxycarbonyl-phenylalanine-cesium-salt.jpg)
N-(tert-Butyloxycarbonyl)-phenylalanine cesium salt
Product Number: C874
CAS number: 42538-61-4
Synonyms: 2-(tert-Butoxycarbonylamino)-3-phenylpropanoate cesium salt
![[building-blocks] Boc-L-Leucine-O cesium salt](https://www.alsachim.com/14671-list_image/Boc-L-Leucine-O-cesium-salt.jpg)
Boc-L-Leucine-O cesium salt
Product Number: C873
CAS number: 42538-67-0
Synonyms: Cesium 2-(tert-butoxycarbonylamino)-4-methylpentanoate
![[reference-standards] 8-Aminocaprylic acid](https://www.alsachim.com/14676-list_image/8-Aminocaprylic-acid.jpg)