D-(+)-Neopterin
D-(+)-Neopterin (CAS: 2009-64-5), with the molecular formula C9H11N5O4 and a molecular weight of 253.21 g/mol, is a valuable heterocyclic compound. It serves as a chiral building block in asymmetric synthesis and general chemical synthesis. This compound is essential in various research and development applications within chemical and biochemical fields, facilitating the creation of complex molecules.
- IUPAC
- D-erythro-Neopterin
- Synonyms
- D-erythro-Neopterin

Chiral Building Block
D-(+)-Neopterin functions as a crucial chiral intermediate in the synthesis of enantiomerically pure compounds. Its defined stereochemistry is vital for constructing complex chiral molecules in pharmaceutical and fine chemical research.
Asymmetric Synthesis
This compound is employed in asymmetric synthesis strategies, enabling the stereoselective formation of new chiral centres. It assists chemists in developing novel synthetic routes with high enantiomeric excess.
Chemical Synthesis
As a versatile heterocyclic building block, D-(+)-Neopterin is utilised in various chemical synthesis pathways. It can be incorporated into diverse molecular scaffolds for the development of new chemical entities.
| Molecular weight | 253.21 |
|---|---|
| Empirical formula | C9H11N5O4 |
| Assay | ≥97.5% (sum of enantiomers, HPLC) |
| Storage temperature | 2-8°C |

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 |
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 D-(+)-Neopterin used for?
+
D-(+)-Neopterin is primarily used as a chiral building block and heterocyclic intermediate in asymmetric and general chemical synthesis for research and development purposes.
What are the CAS number and formula for D-(+)-Neopterin?
+
The CAS number for D-(+)-Neopterin is 2009-64-5, and its empirical formula is C9H11N5O4.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies D-(+)-Neopterin with an assay of ≥97.5% (sum of enantiomers, HPLC). We do not represent this product as USP, BP, EP, or any other pharmacopoeia grade unless explicitly stated.
How should D-(+)-Neopterin be handled safely?
+
D-(+)-Neopterin 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 a dust mask (type N95 US), eyeshields, and gloves, in a well-ventilated area.
Is D-(+)-Neopterin a controlled substance?
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The provided data does not indicate that D-(+)-Neopterin is a controlled substance.
How is D-(+)-Neopterin packed and exported?
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D-(+)-Neopterin is stored at 2-8°C. As a global supplier and exporter, Tech Serve Solutions ensures appropriate packaging and adherence to all shipping regulations for international delivery.
How can I request a sample or quote for D-(+)-Neopterin?
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To request a sample or a quote for D-(+)-Neopterin, please contact the Tech Serve Solutions sales team through our website or by phone, providing your specific requirements.
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