Trichloro-3-methaphos CAS 2633-54-7
| CAS No. | 2633-54-7 |
| Molecular Formula | C9H10Cl3O3PS |
| Molecular Weight | 335.57 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Trichloro-3-methaphos (CAS 2633-54-7), molecular formula C9H10Cl3O3PS and molecular weight 335.57 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of Trichloro-3-methaphos (C9H10Cl3O3PS) is characterized by a sulfone group, a phosphonate group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
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 | C9H10Cl3O3PS |
| Molecular Weight | 335.57 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; 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.) | 1957 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
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Recommended Standards
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- 3-(2-Bromophenyl)-5-(3-chlorophenyl)-1,2,4-oxadiazole (CAS 1033201-83-0)
- 1-Bromo-9H-fluorene (CAS 28314-04-7)
- (R)-1-(5-Methylthiophen-2-yl)ethan-1-ol (CAS 1344955-52-7)
- 1-Methyl-4-(prop-1-en-2-yl)cyclohexan-1-ol (CAS 138-87-4)
- 1-(Butylsulfanyl)-4-nitrobenzene (CAS 27826-43-3)
- 3-(2-Methylphenyl)butanoic acid (CAS 72851-31-1)
- Furan-2-sulfinic acid (CAS 88576-65-2)
- (S)-2-(tert-Butoxycarbonylamino)-4,4-difluorobutanoic acid (CAS 467442-20-2)
- Mal-PFP ester (CAS 138194-55-5)
- Disodium Salt Heptahydrate (CAS 357166-30-4)
- Tau Peptide (245-274) (Repeat 1 Domain) trifluoroacetate salt (CAS 1428134-39-7)
Why CATO?
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