Oxamic acid
Oxamic acid (CAS 471-47-6), with the linear formula NH₂COCO₂H and a molecular weight of 89.05 g/mol, is a vital organic building block. This carboxylic acid derivative functions as a key intermediate in chemical synthesis. It is characterised by its amino and carbonyl functionalities, making it a versatile compound for various chemical transformations and research applications.
- IUPAC
- Aminooxoacetic acid,Oxalic acid monoamide
- Synonyms
- Aminooxoacetic acidOxalic acid monoamide

Chemical Synthesis Intermediate
Oxamic acid serves as a fundamental building block in the synthesis of more complex organic molecules. Its reactive functional groups allow for diverse chemical modifications.
Research and Development
Utilised in academic and industrial research laboratories for exploring new synthetic pathways and developing novel compounds. Its structure is valuable for probing reaction mechanisms.
Organic Building Block
As a compact molecule featuring both amide and carboxylic acid groups, oxamic acid is a useful precursor for creating heterocycles and other specialised organic structures.
| Molecular weight | 89.05 |
|---|---|
| Linear formula | NH2COCO2H |
| Assay | ≥98% |
| Melting point | 207-210 °C (dec.)(lit.) |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Oxamic acid used for?
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Oxamic acid is primarily used as a building block in chemical synthesis and in research and development for creating novel organic compounds.
What is the CAS number and formula for Oxamic acid?
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The CAS number for Oxamic acid is 471-47-6, and its linear formula is NH₂COCO₂H.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Oxamic acid with an assay of ≥98%. We do not represent this product as meeting USP, BP, or EP pharmacopoeia standards.
How should Oxamic acid be handled safely?
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Oxamic acid is classified as a warning substance causing skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335). Handle with appropriate personal protective equipment including eyeshields, gloves, and a dust mask (N95 recommended). Ensure adequate ventilation.
Is Oxamic acid a controlled substance?
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The provided data does not indicate that Oxamic acid is a controlled substance.
How is Oxamic acid packed and shipped?
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Tech Serve Solutions exports fine chemicals globally. Specific packing and shipping details for Oxamic acid can be provided upon request to meet regulatory and customer requirements.
How can I request a quote or sample for Oxamic acid?
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To request a quote or sample of Oxamic acid, please contact the Tech Serve Solutions sales team through our website or by phone.
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