Cas no 3621-81-6 (2,5-dichloro-1,3-benzoxazole)

2,5-Dichloro-1,3-benzoxazole is a heterocyclic organic compound featuring a benzoxazole core substituted with chlorine atoms at the 2 and 5 positions. This structure imparts reactivity suitable for use as an intermediate in pharmaceutical and agrochemical synthesis. The electron-withdrawing effects of the chlorine substituents enhance its utility in cross-coupling reactions and nucleophilic substitutions. Its stability under standard conditions and compatibility with a range of solvents make it a versatile building block for constructing more complex molecules. The compound is particularly valued in medicinal chemistry for its potential in developing bioactive scaffolds. Proper handling is advised due to its halogenated nature.
2,5-dichloro-1,3-benzoxazole structure
2,5-dichloro-1,3-benzoxazole structure
Product Name:2,5-dichloro-1,3-benzoxazole
CAS No:3621-81-6
MF:C7H3Cl2NO
MW:188.010819673538
MDL:MFCD09264312
CID:44330
PubChem ID:10397578
Update Time:2025-06-07

2,5-dichloro-1,3-benzoxazole Chemical and Physical Properties

Names and Identifiers

    • 2,5-Dichlorobenzooxazole
    • 2,5-Dichloro-1,3-benzoxazole
    • 2,5-Dichlorobenzo[d]oxazole
    • 2,5-Dichlorobenzoxazole
    • 2,5-dichloro-1,3-benzoxazole(SALTDATA: FREE)
    • benzoxazole, 2,5-dichloro-
    • MK4305OEth(1/4)aIa2
    • CS-W019777
    • MFCD09264312
    • DS-10866
    • PB26446
    • JOXBFDPBVQGJOJ-UHFFFAOYSA-N
    • 3621-81-6
    • EN300-330992
    • AKOS000321587
    • SY005173
    • A6278
    • 2,5-Dichloro-benzooxazole
    • SCHEMBL1672481
    • AM20040279
    • BB 0240847
    • BCP28343
    • AC-7217
    • FT-0647638
    • DTXSID40439214
    • DB-013200
    • ALBB-004128
    • STK502936
    • 2,5-dichloro-1,3-benzoxazole
    • MDL: MFCD09264312
    • Inchi: 1S/C7H3Cl2NO/c8-4-1-2-6-5(3-4)10-7(9)11-6/h1-3H
    • InChI Key: JOXBFDPBVQGJOJ-UHFFFAOYSA-N
    • SMILES: ClC1C=CC2=C(C=1)N=C(O2)Cl

Computed Properties

  • Exact Mass: 186.95900
  • Monoisotopic Mass: 186.9591691g/mol
  • Isotope Atom Count: 0
  • Hydrogen Bond Donor Count: 0
  • Hydrogen Bond Acceptor Count: 1
  • Heavy Atom Count: 11
  • Rotatable Bond Count: 0
  • Complexity: 155
  • 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
  • XLogP3: 3.8
  • Topological Polar Surface Area: 26?2

Experimental Properties

  • Density: 1.523
  • Boiling Point: 242.867 °C at 760 mmHg
  • Flash Point: 100.683 °C
  • Refractive Index: 1.636
  • PSA: 26.03000
  • LogP: 3.13460

2,5-dichloro-1,3-benzoxazole Security Information

2,5-dichloro-1,3-benzoxazole Customs Data

  • HS CODE:2934999090
  • Customs Data:

    China Customs Code:

    2934999090

    Overview:

    2934999090. Other heterocyclic compounds. 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

    Summary:

    2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

2,5-dichloro-1,3-benzoxazole Pricemore >>

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TRC
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2,5-dichloro-1,3-benzoxazole Suppliers

Suzhou Senfeida Chemical Co., Ltd
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(CAS:3621-81-6)2,5-Dichlorobenzooxazole
Order Number:sfd13099
Stock Status:in Stock
Quantity:200kg
Purity:99.9%
Pricing Information Last Updated:Friday, 19 July 2024 14:36
Price ($):discuss personally
Tiancheng Chemical (Jiangsu) Co., Ltd
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(CAS:3621-81-6)2,5-二氯苯并惡唑
Order Number:LE25930959
Stock Status:in Stock
Quantity:25KG,200KG,1000KG
Purity:99%
Pricing Information Last Updated:Friday, 20 June 2025 12:53
Price ($):discuss personally
Recommended suppliers
Suzhou Senfeida Chemical Co., Ltd
(CAS:3621-81-6)2,5-Dichlorobenzooxazole
sfd13099
Purity:99.9%
Quantity:200kg
Price ($):Inquiry
Email
Tiancheng Chemical (Jiangsu) Co., Ltd
(CAS:3621-81-6)2,5-二氯苯并惡唑
LE25930959
Purity:99%
Quantity:25KG,200KG,1000KG
Price ($):Inquiry
Email