6-(4-Methyl-3-nitrophenyl)pyridazin-3(2H)-one CAS 58897-78-2
| CAS No. | 58897-78-2 |
| Molecular Formula | C11H9N3O3 |
| Molecular Weight | 231.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
6-(4-Methyl-3-nitrophenyl)pyridazin-3(2H)-one (CAS 58897-78-2), molecular formula C11H9N3O3 and molecular weight 231.21 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 6-(4-Methyl-3-nitrophenyl)pyridazin-3(2H)-one (C11H9N3O3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 231.21 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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), 6-(4-Methyl-3-nitrophenyl)pyridazin-3(2H)-one 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 | C11H9N3O3 |
| Molecular Weight | 231.21 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 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
| Nitrogen Atoms | 3 |
Related Methyl Standards
- 3-(4-Nitrophenyl)-5-(prop-1-en-2-yl)-1,2,4-oxadiazole (CAS 1033202-00-4)
- 1-methyl-3-(4-nitrophenyl)-1H-pyrazole-4-carbaldehyde (CAS 1152508-77-4)
- 1-[(2-methyl-6-nitrophenyl)carbonyl]-1H-imidazole (CAS 1235438-76-2)
- 1-(4-Nitrophenyl)-1H-pyrrole-2-carboxamide (CAS 43053-85-6)
- 2-Methyl-6-(4-nitrophenyl)pyridazin-3(2H)-one (CAS 922995-96-8)
- 6-methyl-2-(3-nitrophenyl)pyrimidine 1-oxide (CAS 210036-45-6)
- 1-(5-(2-Nitrophenyl)furan-2-yl)ethan-1-one (CAS 56656-34-9)
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Recommended Standards
- 5-Nitro-2-phenylpyrimidine-4,6-diamine (CAS 3346-20-1)
- 6-Amino-1,3-dioxolo[4,5-g]quinoline-7-carboxamide (CAS 55149-47-8)
- 5-Methyl-N-(3-nitrobenzylidene)isoxazol-3-amine (CAS 88812-66-2)
- 5-[(Phenylamino)methylidene]pyrimidine-2,4,6(1H,3H,5H)-trione (CAS 23069-91-2)
- 4-(Imidazo[1,2-a]pyridin-2-yl)-N-methylaniline (CAS 497848-13-2)
- 4-Nitro-2-vinylbenzoic acid (CAS 1448307-89-8)
- (E)-3-(2-Fluorophenyl)but-2-enoic acid (CAS 1865690-02-3)
- 2,2,3,3-Tetrachloro-1,1,1,4,4,4-hexafluorobutane (CAS 375-34-8)
- 4-[(2-methylpropoxy)methyl]piperidine hydrochloride (CAS 1172379-41-7)
- Ethyl 1-(4-bromophenyl)-5-chloro-1H-pyrazole-4-carboxylate (CAS 98475-72-0)
- Pyrimethamine-D3 (CAS 1189936-99-9)
- Methyl 3-bromo-5-fluoro-2-hydroxybenzoate (CAS 4068-73-9)
- 2-(Butylthio)-1-(4-hydroxyphenyl)ethan-1-one (CAS 1157151-76-2)
- Acetyl Dipeptide-1 (CAS 196604-48-5)
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