KM-003 (sulfite) CAS 587879-54-7
| CAS No. | 587879-54-7 |
| Molecular Formula | C19H26ClN7O4 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of KM-003 (sulfite) (C19H26ClN7O4CH4O3S) is characterized by a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine 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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies KM-003 (sulfite) (CAS 587879-54-7), a certified reference material (molecular formula C19H26ClN7O4CH4O3S, MW 548.01 g/mol) for analytical method development and quality control.
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), KM-003 (sulfite) 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 | C19H26ClN7O4 CH4O3S |
| Molecular Weight | 548.01 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.) | 1984 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 7 |
| Sulfur Atoms | 1 |
Related KM Standards
Recommended Standards
- tert-Butyl (2-chloro-4,6-difluorophenyl)carbamate (CAS 1547764-90-8)
- n-[1-(4-bromophenyl)ethyl]-2-chloroacetamide (CAS 91687-65-9)
- (3R,4S)-1-((4-Amino-5H-pyrrolo[3,2-d]pyrimidin-7-yl)methyl)-4-((methylthio)methyl)pyrrolidin-3-ol (CAS 653592-04-2)
- (2-Amino-6-bromo-3-fluorophenyl)methanol (CAS 1227958-14-6)
- (3Z)-3-{[(3-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl]oxy}phenyl)amino]methylidene}-1,3-dihydro-2-benzofuran-1-one (CAS 337928-55-9)
- 2-Methoxy-4-(5,5,6-trimethylbicyclo[2.2.1]Heptan-2-yl)phenol (CAS 13746-54-8)
- Quinuclidin-4-ylmethanamine dihydrochloride (CAS 67496-77-9)
- N1-(4-methoxybenzyl)-N7,N7-dimethyl-3-m-tolylisoquinoline-1,7-diamine (CAS 1248622-41-4)
- 3-(2,5-Dimethylthiophen-3-yl)acrylaldehyde (CAS 1563239-70-2)
- Peptide Impurity 81 TFA (CAS CATO-CPTD788581)
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