Malaoxon
Also known as: Malaoxon, Malaoxone, Malathion-O-analog, Oxycarbophos, Diethyl 2-[(dimethoxyphosphoryl)sulfanyl]succinate, Malathion impurity B, O,O-Dimethyl S-(1,2-dicarbethoxyethyl)thiophosphate
Malaoxon (CAS 1634-78-2) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C10H19O7PS and a molecular weight of 314.292 g/mol. Key properties include a melting point of <20℃, a boiling point of 376.0±52.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 181.2±30.7 °C. It is classified under GHS with signal word Danger and hazard statements H301 — Toxic if swallowed and H310. No supplier offers are currently listed; request a quote. Record last updated Nov 3, 2026.
- CAS No.
- 1634-78-2
- Jingsj CID
- J-9071-1
- Molecular Formula
- C10H19O7PS
- Molecular Weight
- 314.292 g/mol
- Category
- Organic Compounds
- Last updated
- 11/3/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | <20℃ |
|---|---|
| Boiling Point | 376.0±52.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 181.2±30.7 °C |
| Exact Mass | 314.058899 |
| PSA | 123.24000 |
| LogP | 2.07 |
| Appearance | liquid |
| Vapor Pressure | 0.0±0.9 mmHg at 25°C |
| Refractive Index | 1.470 |
GHS Safety & Compliance
- H301 — Toxic if swallowed
- H310
Activity & Biological Data
| Additional Information | [1]. Angelini DJ, et al. The Pesticide Metabolites Paraoxon and Malaoxon Induce Cellular Death by Different Mechanisms in Cultured Human Pulmonary Cells. Int J Toxicol. 2015 Sep-Oct;34(5):433-41. |
|---|
Frequently Asked Questions
What is the CAS number of Malaoxon?
The CAS number of Malaoxon is 1634-78-2.
What are the molecular formula and molecular weight of Malaoxon?
Malaoxon has molecular formula C10H19O7PS and molecular weight 314.292 g/mol.
Is Malaoxon hazardous?
Malaoxon has GHS signal word Danger and hazard statements H301 — Toxic if swallowed; H310.
What are the upstream and downstream products of Malaoxon?
For Malaoxon, Upstream Products: Malathion, Trimethyl phosphite.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Malaoxon (CAS 1634-78-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-9071-1 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.