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Oxazole-5-carboxylic acid

CAS 118994-90-4 C4H3NO3 113.07 g/mol Catalogue item Heterocycles
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Structure of Oxazole-5-carboxylic acid, CAS 118994-90-4
Structure · C4H3NO3
CAS number
118994-90-4
Molecular formula
C4H3NO3
Molecular weight
113.07 g/mol
Standard packing
1kg / 25kg / 100kg

Oxazole-5-carboxylic acid is catalogued as an acid: CAS 118994-90-4, formula C4H3NO3, molecular weight 113.07.

Acids of this size usually sit at the end of a route, so the release specification and the packing matter more to the buyer than the reactivity does.

The formula C4H3NO3 resolves to 4 carbons with 3 oxygens and one nitrogen. With 4 carbons the molecule is small enough to be lost to evaporation during a work-up, so the step is usually run closed.

Handling and storage

Keep the container sealed and separate from amines: salt formation on the outside of a badly stored drum is a real handling problem.

Ordering

Quoted from stock in 1kg / 25kg / 100kg, or made to order where the lot has run down. Either way the same release testing applies. Identity is confirmed by NMR and MS at release, and the assay value belongs to the lot rather than to the catalogue entry.

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Quotation

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EntryOxazole-5-carboxylic acid
CAS118994-90-4
Typical lead timeStock or 2–4 weeks
DocumentationCOA, SDS, spec sheet

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Oxazole-5-carboxylic acid (118994-90-4)

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