5-(Dimethoxymethyl)-1-(2-nitrophenyl)-1H-pyrazole CAS 1269291-82-8
| CAS No. | 1269291-82-8 |
| Molecular Formula | C12H13N3O4 |
| Molecular Weight | 263.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 5-(Dimethoxymethyl)-1-(2-nitrophenyl)-1H-pyrazole 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.
5-(Dimethoxymethyl)-1-(2-nitrophenyl)-1H-pyrazole (CAS 1269291-82-8), molecular formula C12H13N3O4 and molecular weight 263.25 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C12H13N3O4, 5-(Dimethoxymethyl)-1-(2-nitrophenyl)-1H-pyrazole contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 263.25 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
Physical & Chemical Properties
| Molecular Formula | C12H13N3O4 |
| Molecular Weight | 263.25 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 3 |
Related Dimethoxymethyl Standards
- 5-(Dimethoxymethyl)-1-(4-nitrophenyl)-1H-pyrazole (CAS 1269294-17-8)
- 5-(2-(Dimethoxymethyl)phenyl)thiophene-2-carbaldehyde (CAS 886509-12-2)
- 5-(3-(Dimethoxymethyl)phenyl)thiophene-2-carbaldehyde (CAS 886509-08-6)
- 5-(4-(Dimethoxymethyl)phenyl)thiophene-2-carbaldehyde (CAS 886509-35-9)
- 1-(6-(Dimethoxymethyl)-5-(trifluoromethyl)pyridin-3-yl)ethan-1-ol (CAS 2853570-63-3)
- 2-(Dimethoxymethyl)-2-methyl-6-nitro-2H-chromene (CAS 146821-84-3)
- 6-(Dimethoxymethyl)-2-(trimethylsilyl)furo[3,2-b]pyridine (CAS 1186310-76-8)
- 4-(Dimethoxymethyl)-5-(trifluoromethyl)-1H-pyrrolo[2,3-b]pyridine (CAS 1261365-40-5)
Recommended Standards
- 4-(4-Methyl-3-oxo-3,4-dihydro-2H-benzo[b][1,4]oxazin-6-yl)-4-oxobutanoic acid (CAS 126802-55-9)
- 2-(5,7-Dioxo-5,7-dihydro-6H-pyrrolo[3,4-b]pyrazin-6-yl)-4-methylpentanoic acid (CAS 126310-30-3)
- 2-(2-Carboxycyclopropane-1-carboxamido)-6-methylbenzoic acid (CAS 1274891-95-0)
- tert-Butyl 2-cyano-2-(5-nitropyridin-2(1H)-ylidene)acetate (CAS 1255574-90-3)
- 2-Amino-3,7-dimethylimidazo[4,5-f]quinoxaline (CAS 78411-56-0)
- Methyl 2-(2-ethoxyphenyl)-2-hydroxyacetate (CAS 859198-84-8)
- L-Alanine-2-d1 (CAS 21386-65-2)
- 2-(M-tolyl)pyrimidine-4-carboxylic acid (CAS 1215561-98-0)
- (5-Methyl-4-nitro-1H-pyrazol-1-yl)acetic acid (CAS 1001611-09-1)
- 5-Fluoro-3-methoxy-2-nitrobenzoic acid (CAS 1007113-04-3)
- Selenodicysteine (CAS 20710-99-0)
- N-(4-Amino-phenyl)-5-bromo-2-ethoxy-benzenesulfonamide (CAS 380345-02-8)
- 3-(5-Methylfuran-2-yl)acrylaldehyde (CAS 5555-90-8)
- Smac-N7 Peptide (CAS 401913-57-3)
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