C5H2Cl3NO
198.43 g/mol
AgrochemicalDanger
3,5,6-TRICHLORO-2-PYRIDINOL
CAS6515-38-4EC229-405-2
Category
Agrochemical
Compound Class
Heterocycle
Primary Use
Metabolite of chlorpyrifos
3,5,6-Trichloro-2-pyridinol is a hydroxypyridine compound that is a metabolite of the agrochemical chlorpyrifos. It is also recognized as a human xenobiotic metabolite and a urinary metabolite.
Human urinary biomarker for chlorpyrifos exposureReference standard in environmental monitoring studies
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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Related Reading
Safety Reference
Danger
H302Harmful if swallowed
H318Causes serious eye damage
H400Very toxic to aquatic life
H410Very toxic to aquatic life with long lasting effects
H411Toxic to aquatic life with long lasting effects
Customs Tariff Classification
The international HS code for 3,5,6-TRICHLORO-2-PYRIDINOL (CAS 6515-38-4) is 2933.79.
HS code (international, 6-digit)
2933.79
EU CN code (8-digit)
2933 79 00
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
3,5,6-trichloro-1H-pyridin-2-one
InChIKey
WCYYAQFQZQEUEN-UHFFFAOYSA-N
SMILES
C1=C(C(=O)NC(=C1Cl)Cl)Cl
Synonyms (30)
- 2,3,5-trichloro-6-pyridinol
- 2,3,5-trichloropyridine-6-ol
- 2-Pyridinol, 3,5,6-trichloro-
- 3,5,6 Trichloro 2-pyridinal
- 3,5,6-TRICHLORO-2-PYRIDINOL
- 3,5,6-TRICHLORO-2-PYRIDINONE
- 3,5,6-Trichloro-2-pyridone
- 3,5,6-Trichloropyridin-2-ol
- 3,5,6-Trichloropyridine-2-ol
- 3,5,6-trichloropyrid-2-one
- 3,5,6-trichloropyridine-2-one
- Caswell No. 821AA
- Chlorpyrifos metabolite
- TCpyol
- TRICHLORO-2-PYRIDINOL, 3,5,6-
- chlorpyrifos TP1
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