Chlorpyrifos-Methyl-Oxon CAS 5598-52-7
| CAS No. | 5598-52-7 |
| Molecular Formula | C7H7Cl3NO4P |
| Molecular Weight | 306.47 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies Chlorpyrifos-Methyl-Oxon (CAS 5598-52-7), a certified reference material (molecular formula C7H7Cl3NO4P, MW 306.47 g/mol) for analytical method development and quality control.
Structurally, Chlorpyrifos-Methyl-Oxon (C7H7Cl3NO4P) contains an amide group, a phosphate ester group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 3.5, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 306.47 g/mol, it falls into the moderately-high-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C7H7Cl3NO4P |
| Molecular Weight | 306.47 g/mol |
| Appearance | White to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| 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) | 3.5 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Chlorpyrifos Standards
- Chlorpyrifos-Methyl (CAS 5598-13-0)
- Chlorpyrifos-Oxon (CAS 5598-15-2)
- Chlorpyrifos-oxon-d10 (CAS 1794779-85-3)
- Chlorpyrifos (CAS 2921-88-2)
- Chlorpyrifos (diethyl-D10) (CAS 285138-81-0)
- Chlorpyrifos Impurity 6 (CAS 4486-44-6)
- Chlorpyrifos Impurity 1 (CAS 167100-86-9)
- Chlorpyrifos quality control sample from acetone (CAS CATO-CQCM102215)
Recommended Standards
- 40538-11-2 A825158 diphenyl(2-phenylethenyl)phosphane diphenyl(2-phenylethenyl)phosphine (CAS 40538-11-2)
- 1-([1,2,4]Triazolo[1,5-a]pyridin-6-yl)-1-((tert-butyldimethylsilyl)oxy)propan-2-amine (CAS 1043907-96-5)
- Triethoxy(3-((tetrahydrofuran-2-yl)methoxy)propyl)silane (CAS 31003-16-4)
- 8(17)14-Labdadiene-13,18-diol - (CAS 1438-65-9)
- Dexamethasone EP Impurity B Hydrochloride (CAS 956901-32-9)
- (3-(Difluoromethyl)-5-methoxy-2-(trifluoromethyl)pyridin-4-yl)methanamine (CAS 1361920-26-4)
- Ethyl 7-(3-acetoxyazetidin-1-yl)-1-(6-amino-3,5-difluoropyridin-2-yl)-6-fluoro-4-oxo-1,4-dihydroquinoline-3-carboxylate (CAS 1788054-85-2)
- Betamethasone Impurity 108 (CAS CATO-C4X-1437108)
- N-(2-Chlorophenyl)-3-[4-(6-methylheptan-2-yl)-5-sulfanyl-4H-1,2,4-triazol-3-yl]benzene-1-sulfonamide (CAS 748777-78-8)
- Ethyl (5-amino-3-((methyl(phenyl)amino)methyl)-1,2-dihydropyrido[3,4-b]pyrazin-7-yl)carbamate (CAS 80434-77-1)
- 5-Phenoxynicotinic acid methyl ester (CAS 936344-52-4)
- (2,2,6,6-Tetramethyloxan-4-yl)methanamine (CAS 1449010-05-2)
- 6-Cyano-5-(difluoromethyl)-4-fluoropyridine-3-sulfonamide (CAS 1806911-39-6)
- Peptide Impurity 04 (CAS 2913424-91-4)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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