Halosulfuron (free acid) CAS 135397-30-7
| CAS No. | 135397-30-7 |
| Molecular Formula | C12H13ClN6O7S |
| Molecular Weight | 420.79 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 420.79 g/mol gives Halosulfuron (free acid) distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Halosulfuron (free acid) (CAS 135397-30-7), a certified reference material (molecular formula C12H13ClN6O7S, MW 420.79 g/mol) for analytical method development and quality control.
Based on its molecular formula C12H13ClN6O7S, Halosulfuron (free acid) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 420.79 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
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 | C12H13ClN6O7S |
| Molecular Weight | 420.79 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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.) | 1995 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 6 |
| Sulfur Atoms | 1 |
Related Halosulfuron Standards
Recommended Standards
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