2-Methyl-1-[2-(4-nitrophenyl)-2-oxoethyl]pyridin-1-ium bromide CAS 126126-69-0
| CAS No. | 126126-69-0 |
| Molecular Formula | C14H13N2O3 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 2-Methyl-1-[2-(4-nitrophenyl)-2-oxoethyl]pyridin-1-ium bromide.
2-Methyl-1-[2-(4-nitrophenyl)-2-oxoethyl]pyridin-1-ium bromide (CAS 126126-69-0), molecular formula C14H13N2O3Br and molecular weight 337.17 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 2-Methyl-1-[2-(4-nitrophenyl)-2-oxoethyl]pyridin-1-ium bromide (C14H13N2O3Br) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 2-Methyl-1-[2-(4-nitrophenyl)-2-oxoethyl]pyridin-1-ium bromide 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 | C14H13N2O3 Br |
| Molecular Weight | 337.17 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1993 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related Methyl Standards
- 2-(4-Nitrophenyl)Ethanol (CAS 100-27-6)
- 4- Nitrophenyl Isocyanate(1-Isocyanato-4-nitrobenzene) (CAS 100-28-7)
- (4-Methyl-2-nitrophenyl)hydrazine hydrochloride (CAS 100032-76-6)
- Methyl 4-(4-nitrophenyl)-3-oxobutanoate (CAS 1000571-72-1)
- 5-(3-Nitrophenyl)-2-(2,4,6-trichlorophenyl)-1H-1,2,4-triazol-3(2H)-one (CAS 1000575-65-4)
- 5-(4-Nitrophenyl)-2-(2,4,6-trichlorophenyl)-1H-1,2,4-triazol-3(2H)-one (CAS 1000575-74-5)
- 4-((4-Nitrophenyl)imino)pentan-2-one (CAS 100060-84-2)
- 2-O-(4-Nitrophenyl)-α-D-N-glycolylneuraminic acid (CAS 1000890-36-7)
Recommended Standards
- (6R,8AR)-6-(3,4-dimethoxyphenyl)-7-(4-methoxyphenyl)-1,2,3,5,6,8a-hexahydroindolizin-8a-ol (CAS 138964-86-0)
- 2-Allyl-4,5-dimethoxyphenol (CAS 59893-87-7)
- Methyl 2,4-dihydroxy-5-nitrobenzoate (CAS 271261-71-3)
- 3-Hydroxy-6-iodo-2-(trifluoromethyl)pyridine (CAS 1227571-32-5)
- 5-(Cyclopentyloxy)-3-methylpentane-1-sulfonyl chloride (CAS 1477790-13-8)
- 2-isothiocyanato-N-(propan-2-yl)acetamide (CAS 1154104-64-9)
- 3,5-Difluoro-2-propoxybenzoyl chloride (CAS 1443347-51-0)
- Pioglitazone (CAS 625853-74-9)
- Methyl 3-(2-naphthyl)-1H-pyrazole-5-carboxylate (CAS 164295-93-6)
- Semaglutide impurity 71 (CAS CATO-C4X-222671)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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