Chlorpyrifos
TL;DR: Chlorpyrifos (CAS 2921-88-2) is a chemical compound with molecular formula C9H11Cl3NO3PS and molecular weight 348.92627 g/mol, supplied by CoreyChem (Career Henan Chemical Co., Ltd.) with ISO-certified quality and global shipping.
diethoxy-sulfanylidene-[(3,5,6-trichloro-2-pyridinyl)oxy]-λ5-phosphane
Also Known As: chlorpyrifos, Dursban, Chlorpyriphos, Lorsban, Trichlorpyrphos
Application Areas
Top 5 of 22 IPC patent classification(s) from the SureChEMBL global patent database.
Technical Specifications
| Molecular Formula | C9H11Cl3NO3PS |
| Molecular Weight | 348.92627 g/mol |
| XLogP | 5.3 |
| Topological Polar Surface Area (TPSA) | 72.7 Ų |
| Hydrogen Bond Donors | 0 |
| Hydrogen Bond Acceptors | 5 |
| Rotatable Bonds | 6 |
| Exact Mass | 348.92627 Da |
| Heavy Atoms | 18 |
| Complexity | 303.0 |
| Melting Point | 108 to 110 °F (NTP, 1992) |
| Boiling Point | 320 °F at 760 mmHg (Decomposes) (NIOSH, 2024) |
| Density | 1.4 (Liquid at 110 °F) (NIOSH, 2024) - Denser than water; will sink |
| Flash Point | 82 °F (CLOSED CUP) /DURSBAN 4E/ |
| Vapor Pressure | 1.87e-05 mmHg at 77 °F (NTP, 1992) |
| Solubility | approximately 2 mg/L at 77 °F (NTP, 1992) |
| SMILES | CCOP(=S)(OCC)OC1=NC(=C(C=C1Cl)Cl)Cl |
| InChIKey | SBPBAQFWLVIOKP-UHFFFAOYSA-N |
Product Description
Applications: Chlorpyrifos is used in agrochemical development, including crop protection agent synthesis, as well as heterocycle construction in medicinal chemistry and agrochemical discovery. It commonly serves as a versatile building block for organic synthesis. CoreyChem supplies Chlorpyrifos (CAS 2921-88-2) with custom synthesis available from milligram to multi-kilogram scale, supported by COA, MSDS, and HPLC/NMR/MS documentation.
Chlorpyrifos is a agrochemical intermediate identified by CAS number 2921-88-2 and the molecular formula C9H11Cl3NO3PS and a molecular weight of 348.93 g/mol. Physically, the compound has a density of 1.4 (Liquid at 110 °F) (NIOSH, 2024) - Denser than water; will sink g/cm³, a solubility: approximately 2 mg/L at 77 °F (NTP, 1992). It is also known as chlorpyrifos and Dursban.
Custom synthesis and full analytical documentation (COA/MSDS) are available from CoreyChem. Request a quotation with your required quantity and purity for current lead time and pricing.
Chemical Property Profile of Chlorpyrifos
Property Insights of Chlorpyrifos
The XLogP value of 5.3 indicates that Chlorpyrifos is lipophilic (fat-soluble), which may influence its absorption, distribution, and formulation strategy. The TPSA of 72.7 Ų falls within the moderate polarity range, balancing permeability and solubility for Chlorpyrifos. Following Lipinski's Rule of Five, Chlorpyrifos has 0 hydrogen bond donor(s) and 5 hydrogen bond acceptor(s), which may warrant consideration for formulation optimization.
Frequently Asked Questions
What is the CAS number of Chlorpyrifos?
The CAS number of Chlorpyrifos is 2921-88-2.
What is the molecular formula of Chlorpyrifos?
The molecular formula of Chlorpyrifos is C9H11Cl3NO3PS.
What is the molecular weight of Chlorpyrifos?
The molecular weight of Chlorpyrifos is 348.92627 g/mol.
What are the applications of Chlorpyrifos?
Chlorpyrifos is used in agrochemical development, including crop protection agent synthesis, as well as heterocycle construction in medicinal chemistry and agrochemical discovery. It commonly serves as a versatile building block for organic synthesis. CoreyChem supplies Chlorpyrifos (CAS...
Where can I buy Chlorpyrifos?
You can request a quote for Chlorpyrifos directly from CoreyChem. Contact us or email [email protected] for pricing and availability.
Does CoreyChem offer custom synthesis for Chlorpyrifos?
Yes, CoreyChem provides custom synthesis services for Chlorpyrifos and related compounds. Contact us with your specific requirements including quantity, purity, and timeline.