3,5,6-Trichloro-2-pyridinol
Also known as: 2,3,5-Trichloro-6-hydroxypyridine, 3,5,6-Trichloro-2(1H)-pyridinone, 3,5,6-Trichloropyridin-2-ol, 3,5,6-Trichloropyridine-2-one, TCP, TCPy, 2-Hydroxy-3,5,6-trichloropyridine, 3,5,6-Trichloro-2-hydroxypyridine, 3,5,6-Trichloropyridin-2(1H)-one, PYRIDINOL, Chlorpyriphos metabolite
3,5,6-Trichloro-2-pyridinol (CAS 6515-38-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H2Cl3NO and a molecular weight of 198.434 g/mol. Key properties include a melting point of 328-330ºC, a boiling point of 325.0±37.0 °C at 760 mmHg, a density of 1.7±0.1 g/cm3 and a flash point of 150.4±26.5 °C. It is classified under GHS with signal word Danger and hazard statements H302 — Harmful if swallowed, H318 — Causes serious eye damage and H411 — Toxic to aquatic life with long lasting effects. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 6515-38-4
- Jingsj CID
- J-1972629-6
- Molecular Formula
- C5H2Cl3NO
- Molecular Weight
- 198.434 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 328-330ºC |
|---|---|
| Boiling Point | 325.0±37.0 °C at 760 mmHg |
| Density | 1.7±0.1 g/cm3 |
| Flash Point | 150.4±26.5 °C |
| Exact Mass | 196.920197 |
| PSA | 32.86000 |
| LogP | 2.16 |
| Vapor Pressure | 0.0±0.7 mmHg at 25°C |
| Refractive Index | 1.617 |
| Storage Conditions | Refrigerator |
| Stability | Stable. Incompatible with strong oxidizing agents. |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H318 — Causes serious eye damage
- H411 — Toxic to aquatic life with long lasting effects
Activity & Biological Data
| Additional Information | [1]. Jingquan Li, et al. Novel gene clusters and metabolic pathway involved in 3,5,6-trichloro-2-pyridinol degradation by Ralstonia sp. strain T6. Appl Environ Microbiol. 2013 Dec;79(23):7445-53. |
|---|
Customs & Trade Information
| HS Code | 2933399090 |
|---|---|
| Summary | 2933399090. other compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of 3,5,6-Trichloro-2-pyridinol?
The CAS number of 3,5,6-Trichloro-2-pyridinol is 6515-38-4.
What are the molecular formula and molecular weight of 3,5,6-Trichloro-2-pyridinol?
3,5,6-Trichloro-2-pyridinol has molecular formula C5H2Cl3NO and molecular weight 198.434 g/mol.
Is 3,5,6-Trichloro-2-pyridinol hazardous?
3,5,6-Trichloro-2-pyridinol has GHS signal word Danger and hazard statements H302 — Harmful if swallowed; H318 — Causes serious eye damage; H411 — Toxic to aquatic life with long lasting effects.
What are the upstream and downstream products of 3,5,6-Trichloro-2-pyridinol?
For 3,5,6-Trichloro-2-pyridinol, Upstream Products: Chlorpyrifos, Acrylonitrile, Trichloroacetyl chloride; Downstream Products: Chlorpyrifos-methyl, Triclopyr, 2,3,5,6-Tetrachloropyridine.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "3,5,6-Trichloro-2-pyridinol (CAS 6515-38-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1972629-6 (accessed 2026-11-07).
Data for reference only; verify product details with suppliers before purchase.