3,5,6-Trichloro-2-pyridinol
Synonym(s):2,3,5-Trichloro-6-hydroxypyridine;3,5,6-Trichloro-2-pyridone;TCP
- CAS NO.：6515-38-4
- Empirical Formula: C5H2Cl3NO
- Molecular Weight: 198.43
- MDL number: MFCD00130269
- EINECS: 229-405-2
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-06-04 16:00:12
What is 3,5,6-Trichloro-2-pyridinol?
Chemical properties
powder
The Uses of 3,5,6-Trichloro-2-pyridinol
A metabolite of Chlorpyrifos (C425300).
Definition
ChEBI: A pyridone that is pyridin-2(1H)-one substituted by chloro groups at positions 3, 5 and 6. It is a metabolite of the agrochemical chlorpyrifos.
Hazard
Moderately toxic by ingestion and skin contact.
Properties of 3,5,6-Trichloro-2-pyridinol
| Melting point: | 328-330°C |
| Boiling point: | 265℃ |
| Density | 1.955 |
| refractive index | 1.556 |
| Flash point: | 410℃ |
| storage temp. | Inert atmosphere,2-8°C |
| solubility | DMSO (Slightly), Methanol (Slightly) |
| pka | 3.78±0.10(Predicted) |
| form | Solid |
| form | neat |
| color | White to off-white |
| Water Solubility | 0.22g/L(temperature not stated) |
| Stability: | Stable. Incompatible with strong oxidizing agents. |
| CAS DataBase Reference | 6515-38-4(CAS DataBase Reference) |
| NIST Chemistry Reference | 3,5,6-Trichloro-2-pyridinol(6515-38-4) |
| EPA Substance Registry System | 3,5,6-Trichloro-2-pyridinol (6515-38-4) |
Safety information for 3,5,6-Trichloro-2-pyridinol
| Signal word | Danger |
| Pictogram(s) |
 Corrosion Corrosives GHS05  Exclamation Mark Irritant GHS07  Environment GHS09 |
| GHS Hazard Statements |
H302:Acute toxicity,oral H318:Serious eye damage/eye irritation H411:Hazardous to the aquatic environment, long-term hazard |
| Precautionary Statement Codes |
P273:Avoid release to the environment. P280:Wear protective gloves/protective clothing/eye protection/face protection. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for 3,5,6-Trichloro-2-pyridinol
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