Chlorpyrifos-Methyl CAS 5598-13-0
| CAS No. | 5598-13-0 |
| Molecular Formula | C7H7Cl3NO3PS |
| Molecular Weight | 322.53 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C7H7Cl3NO3PS, Chlorpyrifos-Methyl contains an amide group, a sulfone group, a phosphonate group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 322.53 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Chlorpyrifos-Methyl (CAS 5598-13-0), molecular formula C7H7Cl3NO3PS and molecular weight 322.53 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), Chlorpyrifos-Methyl 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 | C7H7Cl3NO3PS |
| Molecular Weight | 322.53 g/mol |
| Purity | >90% |
| 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 |
| Sulfur Atoms | 1 |
Related Chlorpyrifos Standards
- Chlorpyrifos-Oxon (CAS 5598-15-2)
- Chlorpyrifos-Methyl-Oxon (CAS 5598-52-7)
- 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
- cis-11,14-Eicosadienoic Acid Methyl Ester (CAS 61012-46-2)
- 12(Z),15(Z)-Heneicosadienoic acid (CAS 191545-08-1)
- Cis-11,14-Eicosadienoic Acid Methyl Ester (CAS 2463-02-7)
- Methyl 5-bromo-3-(2-chloroacetamido)-2-hydroxybenzoate (CAS 1708126-09-3)
- 1-(2-Methoxy-3,5-dimethylphenyl)ethan-1-one (CAS 55169-98-7)
- 2,4-Diamino-furo[2,3-d]pyrimidine-5-carboxylic acid ethyl ester (CAS 174541-91-4)
- 4-[5-(4-Methylphenyl)-1,2,4-oxadiazol-3-yl]pyridine (CAS 88059-53-4)
- [4-(1H-Pyrrol-1-yl)tetrahydro-2H-pyran-4-yl]acetic acid (CAS 1573547-77-9)
- N-Octadecylacrylamide (CAS 1506-54-3)
- Prednisolone EP Impurity J (CAS 1807-14-3)
- 4-Bromo-3-(hydroxymethyl)benzonitrile (CAS 905710-66-9)
- 6-(Tert-butyl)-2,3-dihydrobenzo[b][1,4]dioxine-2-carboxylic acid (CAS 610258-90-7)
- Diethyl 2-((3-chlorophenyl)amino)malonate (CAS 6626-01-3)
- Semaglutide impurity 86 (CAS CATO-C4X-152686)
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