2-Formyl-4-nitrophenyl methanesulfonate CAS 67326-25-4
| CAS No. | 67326-25-4 |
| Molecular Formula | C8H7NO6S |
| Molecular Weight | 245.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C8H7NO6S, 2-Formyl-4-nitrophenyl methanesulfonate contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 245.21 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.
2-Formyl-4-nitrophenyl methanesulfonate (CAS 67326-25-4), molecular formula C8H7NO6S and molecular weight 245.21 g/mol, is a CATO reference standard with documented purity and traceability.
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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C8H7NO6S |
| Molecular Weight | 245.21 g/mol |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1976 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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Recommended Standards
- 2-Fluoro-4-nitrobenzophenone (CAS 77778-85-9)
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- 3-Fluoro-4-nitrobenzophenone (CAS 527744-61-2)
- 3-[(2,2-dimethylpropyl)amino]-2-methylbenzoic acid (CAS 1249691-27-7)
- 6-Bromo-2-(trifluoromethyl)benzo[d]oxazole (CAS 1260834-26-1)
- (1-(4-(Methylthio)benzyl)-1H-1,2,3-triazol-4-yl)methanol (CAS 1248921-78-9)
- 3,5-Bis(chlorosulfonyl)benzoyl Chloride (CAS 37828-01-6)
- 3-Chloro-4'-(pyrrolidin-1-ylsulfonyl)-[1,1'-biphenyl]-2-carboxylic acid (CAS 1261941-24-5)
- n-Benzyl-4-ethoxybenzo[d]thiazol-2(3h)-imine (CAS 1105191-51-2)
- (S)-1-(2-bromo-6-methoxyphenyl)ethan-1-amine (CAS 1259594-39-2)
- 1-(2-Fluorophenyl)-N3,N3,N5,N5-tetramethyl-1H-1,2,4-triazole-3,5-diamine (CAS 251307-14-9)
- 2-Chloro-2,2-difluoro-1-(3-fluoro-5-methylphenyl)ethan-1-one (CAS 1352225-22-9)
- Semaglutide impurity 01 (CAS 1998701-31-7)
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