L-Neopterin CAS 2277-42-1
| CAS No. | 2277-42-1 |
| Molecular Formula | C9H11N5O4 |
| Molecular Weight | 253.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
L-Neopterin (C9H11N5O4) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO supplies L-Neopterin (CAS 2277-42-1), a certified reference material (molecular formula C9H11N5O4, MW 253.21 g/mol) for analytical method development and quality control.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), L-Neopterin meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C9H11N5O4 |
| Molecular Weight | 253.21 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 5 |
Related L Standards
Recommended Standards
- Ethyl 4-hydroxy-7-nitro-2,3-dihydrobenzofuran-6-carboxylate (CAS 2888554-10-5)
- Methyl 3-(acetoxymethyl)-4-nitrobenzoate (CAS 201933-03-1)
- Ethyl 2-(4-formyl-2-nitrophenoxy)acetate (CAS 420786-61-4)
- Methyl 4-(2-methoxy-2-oxoethyl)-3-nitrobenzoate (CAS 334952-07-7)
- 1-Methoxy-1-oxopropan-2-yl 5-(2-chloro-4-(trifluoromethyl)phenoxy)-2-nitrobenzoate (CAS 77509-33-2)
- (3S,4R)-3-Fluoropiperidin-4-amine (CAS 2055222-39-2)
- 4-Bromo-1,3-dihydrobenzo[c]isothiazole 2,2-dioxide (CAS 2090155-89-6)
- 8-Acetamidooctadecanoic acid (CAS 6622-46-4)
- 2-(2-Chloro-4,5-dimethylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 1549858-71-0)
- N-Benzyl-N-methylacetoacetamide (CAS 71392-09-1)
- N-(4-Carbamoylphenyl)-3-methylisoxazole-5-carboxamide (CAS 62536-30-5)
- N-(3-Bromophenyl)methanesulfonamide (CAS 83922-51-4)
- n-(5-Amino-2-methylphenyl)-2,2-dimethylpropanamide (CAS 926231-65-4)
- D-[Phe]6-Liraglutide (CAS CATO-C4X-199235)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com