Cas no 89284-20-8 (3-Chloropyridin-4-ol)

3-Chloropyridin-4-ol is a heterocyclic compound featuring a pyridine core substituted with a chlorine atom at the 3-position and a hydroxyl group at the 4-position. This structure imparts reactivity suitable for use as a versatile intermediate in pharmaceutical and agrochemical synthesis. The presence of both halogen and hydroxyl functional groups allows for selective modifications, enabling the formation of diverse derivatives. Its stability under standard conditions and compatibility with common organic reactions make it a practical building block for constructing complex molecules. The compound is typically handled under controlled conditions due to its potential reactivity, ensuring optimal performance in synthetic applications.
3-Chloropyridin-4-ol structure
3-Chloropyridin-4-ol structure
Product Name:3-Chloropyridin-4-ol
CAS No:89284-20-8
MF:C5H4ClNO
MW:129.544360160828
MDL:MFCD04114248
CID:61247
PubChem ID:2762929
Update Time:2025-11-02

3-Chloropyridin-4-ol Chemical and Physical Properties

Names and Identifiers

    • 3-Chloropyridin-4-ol
    • 3-chloro-1H-pyridin-4-one
    • 3-Chloro-4-hydroxypyridine
    • 3-Chlor-4-hydroxy-pyridin
    • 4-Pyridinol,3-chloro
    • 4-Pyridinol, 3-chloro-
    • 3-Chloropyridin-4(1H)-one
    • 3-chloro-4-pyridinol
    • 3-chloro-4-hydroxy pyridine
    • PubChem6680
    • 3-Chloropyridine-4-ol
    • 4(1h)-pyridinone,3-chloro-
    • NKEYLLFRPHHBOQ-UHFFFAOYSA-N
    • BCP21954
    • CL0146
    • TRA0024467
    • VP13462
    • SY019390
    • 3-Chloro-4-pyridinol (ACI)
    • EN300-200380
    • DTXSID30376583
    • 4(1H)-Pyridinone,3-chloro-(9CI)
    • AC-23271
    • SCHEMBL9764382
    • DB-010124
    • 89284-20-8
    • CS-W003168
    • 4(1H)-Pyridinone, 3-chloro-
    • 142010-53-5
    • DB-272007
    • AKOS005199004
    • SCHEMBL1569720
    • PS-5346
    • MFCD04114248
    • MDL： MFCD04114248
    • Inchi： 1S/C5H4ClNO/c6-4-3-7-2-1-5(4)8/h1-3H,(H,7,8)
    • InChI Key： NKEYLLFRPHHBOQ-UHFFFAOYSA-N
    • SMILES： ClC1C(O)=CC=NC=1
    • BRN： 1363515

Computed Properties

  • Exact Mass: 128.99800
  • Monoisotopic Mass: 128.998
  • Isotope Atom Count: 0
  • Hydrogen Bond Donor Count: 1
  • Hydrogen Bond Acceptor Count: 2
  • Heavy Atom Count: 8
  • Rotatable Bond Count: 0
  • Complexity: 171
  • Covalently-Bonded Unit Count: 1
  • Defined Atom Stereocenter Count: 0
  • Undefined Atom Stereocenter Count : 0
  • Defined Bond Stereocenter Count: 0
  • Undefined Bond Stereocenter Count: 0
  • Topological Polar Surface Area: 29.1
  • XLogP3: 1

Experimental Properties

  • Color/Form: Pale-yellow to Yellow-brown Solid
  • Density: 1.35
  • Melting Point: 166-171°C
  • Boiling Point: 224.8℃ at 760 mmHg
  • Flash Point: 89.8 °C
  • Refractive Index: 1.569
  • PSA: 33.12000
  • LogP: 1.44060

3-Chloropyridin-4-ol Security Information

3-Chloropyridin-4-ol Customs Data

  • HS CODE：2933399090
  • Customs Data：

    China Customs Code:

    2933399090

    Overview:

    2933399090. Other compounds with non fused pyridine rings in structure. VAT:17.0%. Tax refund rate:13.0%. Regulatory conditions:nothing. MFN tariff:6.5%. general tariff:20.0%

    Declaration elements:

    Product Name, component content, use to, Please indicate the appearance of Urotropine, 6- caprolactam please indicate the appearance, Signing date

    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%

3-Chloropyridin-4-ol Pricemore >>

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3-Chloropyridin-4-ol Production Method

Production Method 1

Reaction Conditions
1.1 Reagents: Chlorosuccinimide Solvents: Acetonitrile ;  1 h, 75 °C
1.2 Reagents: Water
Reference
Convenient chlorination of some special aromatic compounds using N-chlorosuccinimide
Gan, Zongjie; Hu, Bin; Song, Qiao; Xu, Yungen, Synthesis, 2012, 44(7), 1074-1078

3-Chloropyridin-4-ol Raw materials

3-Chloropyridin-4-ol Preparation Products

3-Chloropyridin-4-ol Related Literature

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