4-Formylmorpholine
4-Formylmorpholine (CAS: 4394-85-8, C5H9NO2) is a heterocyclic organic compound with a molecular weight of 115.13 g/mol. This chemical is primarily used as a building block in organic synthesis, particularly within the pharmaceutical and chemical industries. Its applications include the preparation of labelled adenine hydrochloride and terphenyl dialdehyde. 4-Formylmorpholine is supplied by Tech Serve Solutions with a typical purity of 99%.
- IUPAC
- 4-Morpholinecarboxaldehyde
- Synonyms
- 4-Morpholinecarboxaldehyde

Preparation of Labelled Compounds
4-Formylmorpholine serves as a precursor in the synthesis of labelled molecules, such as adenine hydrochloride enriched with Carbon-14, crucial for metabolic and biochemical research.
Synthesis of Complex Organic Molecules
It is employed as a key intermediate in the construction of more complex organic structures, including the synthesis of terphenyl dialdehyde, a component used in materials science.
Heterocyclic Chemistry
As a morpholine derivative, it finds use in heterocyclic chemistry for the development of novel compounds with potential biological activities or material properties.
| Molecular weight | 115.13 |
|---|---|
| Empirical formula | C5H9NO2 |
| Assay | 99% |
| Boiling point | 236-237 °C(lit.) |
| Density | 1.145 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.485(lit.) |
| Application | 4-Formylmorpholine has been used in the preparation of:• adenine hydrochloride labelled with 14C1• terphenyl dialdehyde2 |
| Melting point | 20-23 °C(lit.) |

Hazard statements
- H319Causes serious eye irritation
Precautionary statements
- P305IF IN EYES
| Protective equipment | Eyeshields, Gloves, half-mask respirator (EU), half-mask respirator (US), multi-purpose combination respirator cartridge (US) |
|---|---|
| Flash point | 125 °C / 257 °F |
| Water hazard class (WGK, DE) | 3 |
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 4-Formylmorpholine used for?
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4-Formylmorpholine is used as a building block in chemical synthesis, notably in the preparation of labelled adenine hydrochloride and terphenyl dialdehyde.
What are the CAS number and chemical formula for 4-Formylmorpholine?
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The CAS number for 4-Formylmorpholine is 4394-85-8, and its chemical formula is C5H9NO2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-Formylmorpholine with a minimum assay of 99%. This is a technical or research grade chemical, and TSS does not represent it as USP, BP, or EP grade.
How should 4-Formylmorpholine be handled safely?
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4-Formylmorpholine is classified as a Warning substance (GHS07) due to H319 (Causes serious eye irritation). Appropriate personal protective equipment, including eyeshields and gloves, is essential. Users should consult the Safety Data Sheet for detailed handling instructions and respiratory protection requirements.
Is 4-Formylmorpholine a controlled substance?
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The provided data does not indicate that 4-Formylmorpholine is a controlled substance.
How is 4-Formylmorpholine packed and exported?
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Tech Serve Solutions exports fine chemicals globally. Specific packing and shipping details will be provided upon request, adhering to all relevant international regulations.
How can I request a quote or sample for 4-Formylmorpholine?
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To request a quote or a sample of 4-Formylmorpholine, please contact the Tech Serve Solutions sales team through our website or by phone.
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