CAS No. 35575-96-3
Batch:
Purity:98
Chemical Structure
Check the
Azamethiphos
product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.
| CAS Number | 35575-96-3 | |
|---|---|---|
| Molecular Formula |
C9H10ClN2O5PS |
|
| Molecular Weight (MW) | 324.68 | |
| SMILES | COP(=O)(OC)SCN1C2=C(C=C(C=N2)Cl)OC1=O |
Azamethiphos is an organophosphate parasiticide that acts as an inhibitor of acetylcholinesterase. By inhibiting acetylcholinesterase, it prevents the breakdown of acetylcholine at neuromuscular junctions, leading to continuous synaptic excitation. This neurotransmitter accumulation causes severe neurotoxicity, muscular paralysis, and mortality in parasitic sea lice (Lepeophtheirus salmonis) infecting farmed salmonids. Consequently, azamethiphos serves as an effective therapeutic agent for controlling ectoparasitic sea lice infestations in salmon aquaculture. [1]
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Concentration
Volume
Mass
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Batch:
All in vitro solubility values are batch-tested experimental data (non-literature values).
| Solvent | Solubility & Note |
|---|---|
| DMSO |
64 mg/mL
(197.11 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.) |
Q: Why does a DMSO stock precipitate in media/saline?
A: It is caused by unheated aqueous media (supersaturation), local solvent shock, or incorrect mixing sequence.
How to fix it?
- Preheat media/saline to 37°C.
- Mix rapidly (pipette/vortex) upon addition.
- For complex mixes, always add the aqueous phase last.
- Re-dissolve minor precipitates with a 37°C water bath and sonication (≤30 min).
Note: Technical data last updated: Sep 1, 2026.