3,4-Dimethoxypyridine 1-oxide CAS 769-71-1
| CAS No. | 769-71-1 |
| Molecular Formula | C7H9NO3 |
| Molecular Weight | 155.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
3,4-Dimethoxypyridine 1-oxide (CAS 769-71-1) is a high-purity analytical reference standard with the molecular formula C7H9NO3 and a molecular weight of 155.15 g/mol.
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, 3,4-Dimethoxypyridine 1-oxide is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 155.15 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
CATO manufactures 3,4-Dimethoxypyridine 1-oxide under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C7H9NO3 |
| Molecular Weight | 155.15 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, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 1 |
Related Dimethoxypyridine Standards
- 2,3-Dimethoxypyridine 1-oxide (CAS 111302-00-2)
- 2,6-Dimethoxypyridine 6231-18-1 AS04949 PYRIDINE, 2,6-DIMETHOXY- (CAS 6231-18-1)
- 2,6-Dimethoxypyridine-4-carboxaldehyde (CAS 52606-01-6)
- 2,6-Dimethoxypyridine-3,5-diamine (CAS 85679-78-3)
- 2,6-Dimethoxypyridine-3-methanol (CAS 562840-47-5)
- 3,4-Dimethoxypyridine (CAS 109613-93-6)
- 2,4-Dimethoxypyridine (CAS 18677-43-5)
- 2,3-Dimethoxypyridine (CAS 52605-97-7)
Recommended Standards
- 3-(Isoxazol-3-yl)-1,1-dimethylurea (CAS 55807-89-1)
- 3,4-Dimethyl-5-oxo-2,5-dihydro-1H-pyrazole-1-carboxamide (CAS 857220-41-8)
- 3-(Formylmethyl)glutarimide (CAS 2066-88-8)
- 3,5-Dimethoxypyrazin-2-amine (CAS 23902-84-3)
- 2-(2-Oxa-6-azaspiro[3.3]heptan-6-yl)ethanamine (CAS 54384-40-6)
- 2-Methyl-N-(triphenylphosphoranylidene)aniline (CAS 35843-74-4)
- 4-Methyl-4-(1H-pyrazol-5-yl)piperidinedihydrochloride (CAS 1442106-92-4)
- 119053-73-5 2-Chloro-N-(2,6-dimethylphenyl)-2-phenylacetamide MFCD00085832 (CAS 119053-73-5)
- (1-Methoxy-4-phenylcyclohexyl)methanamine (CAS 1478644-18-6)
- 2-Bromo-3,5-difluoro-6-methylaniline (CAS 2829351-17-7)
- trans-Dichlorobis(triethylphosphine)platinum(II) (CAS 13965-02-1)
- 2-(1-(3-Bromophenyl)cyclobutyl)acetic acid (CAS 1439900-31-8)
- Saxagliptin Hydrochloride Dihydrate (CAS 1073057-20-1)
- Semaglutide impurity 99 (CAS CATO-C4X-222699)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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