6-Methyl-5-nitropyridin-3-ol CAS 36625-63-5
| CAS No. | 36625-63-5 |
| Molecular Formula | C6H6N2O3 |
| Molecular Weight | 154.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 6-Methyl-5-nitropyridin-3-ol is closely related to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
6-Methyl-5-nitropyridin-3-ol (CAS 36625-63-5) is a high-purity analytical reference standard with the molecular formula C6H6N2O3 and a molecular weight of 154.12 g/mol.
Based on its molecular formula C6H6N2O3, 6-Methyl-5-nitropyridin-3-ol 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 154.12 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.
CATO manufactures 6-Methyl-5-nitropyridin-3-ol 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 | C6H6N2O3 |
| Molecular Weight | 154.12 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1967 |
| Nitrogen Atoms | 2 |
Related Methyl Standards
- (6-Nitropyridin-2-yl)methanol (CAS 131747-47-2)
- (5-Nitropyridin-3-yl)methanol (CAS 131747-58-5)
- 3-Methyl-4-nitropyridin-2(1H)-one (CAS 1373551-99-5)
- 2-Methyl-6-nitropyridin-4-ol (CAS 1422448-64-3)
- 5-Methyl-2-nitropyridin-3-ol (CAS 15128-88-8)
- (3-Nitropyridin-4-yl)methanol (CAS 1706430-22-9)
- (2-Nitropyridin-3-yl)methanol (CAS 1706436-74-9)
- (4-Nitropyridin-3-yl)methanol (CAS 1706462-55-6)
Recommended Standards
- 6-Methyl-3-nitropyridin-2-ol (CAS 39745-39-6)
- 6-Methyl-5-oxo-4,5-dihydropyrazine-2-carboxylic acid (CAS 77168-83-3)
- 6-Methyl-2-oxo-2H-pyran-5-carboxylic acid (CAS 25683-10-7)
- Benzo[d][1,3]dioxole-5,6-diol (CAS 21505-20-4)
- 4-Amino-3-(difluoromethyl)-5-methylpicolinonitrile (CAS 1806836-13-4)
- 4-Chlorophenyl 4-((3,4-dichloro-1-methyl-1H-pyrazol-5-yl)oxy)benzenesulfonate (CAS 303996-51-2)
- 3-Methyl-n-propylbenzenesulfonamide (CAS 749916-61-8)
- Dermorphin (CAS 77614-16-5)
- 4-Chloro-7-ethoxy-6-nitroquinoline-3-carbonitrile (CAS 214476-09-2)
- N-(2,3-Dimethylphenyl)-2-((3-(2-hydroxyphenyl)-1H-1,2,4-triazol-5-yl)thio)acetamide (CAS 332126-80-4)
- 1-Bromo-4-(1,1,1-trifluoro-2-methylpropan-2-yl)benzene (CAS 1225380-05-1)
- 1-(2-Bromo-1-(sec-butoxy)ethyl)-3-methylbenzene (CAS 1249777-53-4)
- (R)-2-(3-Chlorobenzyl)pyrrolidine-2-carboxylic acid hydrochloride (CAS 637020-80-5)
- Semaglutide impurity 65 (CAS CATO-C4X-222665)
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