Leptophos
Also known as: Leptophos, Abar, CI-940, Fosvel, Phosvel, O-(4-bromo-2,5-dichlorophenyl) O-methyl phenylphosphonothioate, O-(4-bromo-2,5-dichlorophenyl) O-methyl P-phenylphosphonothioate
Leptophos (CAS 21609-90-5) is a compound in the Organohalogen Compounds category listed in the Jingsj chemical database. It has the molecular formula C13H10BrCl2O2PS and a molecular weight of 412.06600 g/mol. Key properties include a melting point of 71-73 °C, a boiling point of 444.4ºC at 760 mmHg, a density of 1.66 g/cm3 and a flash point of >100 °C. It is classified under GHS with signal word Danger and hazard statements H301 — Toxic if swallowed, H312 — Harmful in contact with skin and H370 — Causes damage to organs. No supplier offers are currently listed; request a quote. Record last updated Nov 3, 2026.
- CAS No.
- 21609-90-5
- Jingsj CID
- J-1311397-5
- Molecular Formula
- C13H10BrCl2O2PS
- Molecular Weight
- 412.06600 g/mol
- Category
- Organohalogen Compounds
- Last updated
- 11/3/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 71-73 °C |
|---|---|
| Boiling Point | 444.4ºC at 760 mmHg |
| Density | 1.66 g/cm3 |
| Flash Point | >100 °C |
| Exact Mass | 409.87000 |
| PSA | 60.36000 |
| LogP | 6.06670 |
| Vapor Pressure | 1.12E-07mmHg at 25°C |
| Refractive Index | 1.651 |
| Storage Conditions | 0-6℃ |
GHS Safety & Compliance
- H301 — Toxic if swallowed
- H312 — Harmful in contact with skin
- H370 — Causes damage to organs
- H410 — Very toxic to aquatic life with long lasting effects
Customs & Trade Information
| HS Code | 2930909090 |
|---|---|
| Summary | 2930909090. other organo-sulphur compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Leptophos?
The CAS number of Leptophos is 21609-90-5.
What are the molecular formula and molecular weight of Leptophos?
Leptophos has molecular formula C13H10BrCl2O2PS and molecular weight 412.06600 g/mol.
Is Leptophos hazardous?
Leptophos has GHS signal word Danger and hazard statements H301 — Toxic if swallowed; H312 — Harmful in contact with skin; H370 — Causes damage to organs.
What are the upstream and downstream products of Leptophos?
For Leptophos, Upstream Products: 4-Bromo-2,5-dichlorophenol, Phenylthiophosphonic Dichloride, Methanol.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Leptophos (CAS 21609-90-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1311397-5 (accessed 2026-11-07).
Data for reference only; verify product details with suppliers before purchase.