ChemicalBook >> CAS DataBase List >>2,6-Dichlorobenzoxazole

2,6-Dichlorobenzoxazole

CAS No.
3621-82-7
Chemical Name:
2,6-Dichlorobenzoxazole
Synonyms
DCBO;N-Butyldiolamine;dichlorobenzoxazole;2,6-chlorobenzoxazole;6-Dichlorobenzoxazole;2,6-Dichlorbenzoxazol;2,6-DICHLOROBENZOXAZOLE;2,6-Dichlorobenzoxazolel;2,6-Dichlorobenzoxazole>2,6-dichlorobenzo[d]oxazole
CBNumber:
CB5452404
Molecular Formula:
C7H3Cl2NO
Molecular Weight:
188.01
MDL Number:
MFCD07368635
MOL File:
3621-82-7.mol
MSDS File:
SDS
Last updated:2026-01-13 11:24:53
Product description Number Pack Size Price
2,6-Dichlorobenzoxazole >98.0%(GC) D3459 5g $22
2,6-Dichlorobenzoxazole >98.0%(GC) D3459 25g $63
2,6-Dichlorobenzoxazole D432090 5g $140
2,6-Dichlorobenzoxazole 95+% 37695 1g $90
2,6-Dichlorobenzoxazole,≥98%(GC) ≥98%(GC) 44414 5G $25.7
More product size

2,6-Dichlorobenzoxazole Properties

Melting point 49-51°C
Boiling point 110°C/13mmHg(lit.)
Density 1.522±0.06 g/cm3(Predicted)
storage temp. under inert gas (nitrogen or Argon) at 2-8°C
pka -0.96±0.30(Predicted)
form fused solid
color White
InChI InChI=1S/C7H3Cl2NO/c8-4-1-2-5-6(3-4)11-7(9)10-5/h1-3H
InChIKey LVVQTPZQNHQLOM-UHFFFAOYSA-N
SMILES O1C2=CC(Cl)=CC=C2N=C1Cl
CAS DataBase Reference 3621-82-7(CAS DataBase Reference)
UNSPSC Code 12352200
NACRES NA.21

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
GHS07
Signal word  Warning
Hazard statements  H315-H319
Precautionary statements  P264-P280-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313
Hazard Codes  Xn
Risk Statements  22
WGK Germany  WGK 3
HS Code  2934999090
Storage Class 11 - Combustible Solids
Hazard Classifications Acute Tox. 4 Oral

2,6-Dichlorobenzoxazole price More Price(19)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
TCI Chemical D3459 2,6-Dichlorobenzoxazole >98.0%(GC) 3621-82-7 5g $22 2021-12-16 Buy
TCI Chemical D3459 2,6-Dichlorobenzoxazole >98.0%(GC) 3621-82-7 25g $63 2021-12-16 Buy
TRC D432090 2,6-Dichlorobenzoxazole 3621-82-7 5g $140 2021-12-16 Buy
Medical Isotopes, Inc. 37695 2,6-Dichlorobenzoxazole 95+% 3621-82-7 1g $90 2021-12-16 Buy
Chem-Impex 44414 2,6-Dichlorobenzoxazole,≥98%(GC) ≥98%(GC) 3621-82-7 5G $25.7 2021-12-16 Buy
Product number Packaging Price Buy
D3459 5g $22 Buy
D3459 25g $63 Buy
D432090 5g $140 Buy
37695 1g $90 Buy
44414 5G $25.7 Buy

2,6-Dichlorobenzoxazole Chemical Properties,Uses,Production

Chemical Properties

This product is solid, insoluble in water, soluble in chlorobenzene.

Uses

2,6-Dichlorobenzoxazole is used in the synthesis of 2-(3-(2,6-dichloro-4-(3,3-dichloroallyloxy)phenoxy)propoxy)-5-(trifluoromethyl)benzo[d]oxazole, an insecticide against Spodoptera exigua.

Synthesis

6-Chloro-2-benzoxazolethiol

22876-20-6

2,6-Dichlorobenzoxazole

3621-82-7

General procedure for the synthesis of 2,6-dichlorobenzoxazole from 6-chlorobenzo[d]oxazole-2(3H)-thione: In a 500-mL four-neck reaction flask, 50 g (0.27 mol) of 6-chlorobenzo[d]oxazole-2(3H)-thione, 300 mL of toluene, and 40 g (0.135 mol) of tris(trichloromethyl)carbonate were added. The reaction mixture was slowly warmed to 50°C and the temperature was continued at a rate of 0.5°C/min, holding the temperature for 10 minutes after each 10°C increase. When the temperature reached 105°C, the reaction was maintained for 1 hour. Upon completion of the reaction, the solvent was removed by distillation under reduced pressure (the initial vacuum was maintained at -0.07 MPa, and when the temperature was raised to 100°C-110°C, the vacuum was increased to -0.095 MPa to completely evaporate the solvent). After evaporation, the residue was removed while hot and cooled and crystallized to give 50.82 g of 2,6-dichlorobenzoxazole with a product purity of 98.1% and a molar yield of 98.4%.

References

[1] Patent: CN102432559, 2016, B. Location in patent: Paragraph 0020; 0037; 0038
[2] Patent: WO2018/37223, 2018, A1. Location in patent: Page/Page column 197; 198
[3] Bioorganic and Medicinal Chemistry Letters, 2006, vol. 16, # 7, p. 1975 - 1980
[4] Journal of Organic Chemistry, 2009, vol. 74, # 8, p. 3229 - 3231
[5] Bioorganic and Medicinal Chemistry Letters, 2012, vol. 22, # 9, p. 3044 - 3049

19932-84-4
3621-82-7
Synthesis of 2,6-Dichlorobenzoxazole from 6-CHLORO-1,3-BENZOXAZOL-2(3H)-ONE
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View Lastest Price from 2,6-Dichlorobenzoxazole manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
2,6-Dichlorobenzoxazole pictures 2026-03-20 2,6-Dichlorobenzoxazole
3621-82-7
US $8.90 / KG 1KG 99% 10 mt Hebei Chuanghai Biotechnology Co., Ltd
2,6-Dichlorobenzoxazole pictures 2025-09-25 2,6-Dichlorobenzoxazole
3621-82-7
US $30.00-0.90 / KG 1KG 99% g-kg-tons, free sample is available Henan Fengda Chemical Co., Ltd
2,6-Dichlorobenzoxazole pictures 2025-04-04 2,6-Dichlorobenzoxazole
3621-82-7
US $0.00-0.00 / kg 1kg 98% 1Ton Henan Aochuang Chemical Co.,Ltd.

2,6-Dichlorobenzoxazole Spectrum

2,6-DICHLOROBENZOXAZOLE 2,6-DICHLOROBENZOXAZOLE 99+% Benzoxazole, 2,6- dichloro- 2,6-Dichlorobenzoxazolel 2,6-dichloro-1,3-benzoxazole 2,6-Dichloro-1,3-benzoxazole 98+% 6-Dichlorobenzoxazole 3-(4-chlorophenyl)-2-phenyl-1-[4-[2-(1-pyrrolidinyl)ethoxy]phenyl]-1-propanone dichlorobenzoxazole 2,6-dichlorobenzo[d]oxazole 2,6-chlorobenzoxazole 2,6-Dichlorobenzoxazole, 97+% DCBO 2,6-Dichlorobenzoxazole> 2,6-Dichlorbenzoxazol 2,6-DICHLOROBENZOXAZOLE (3621-82-7) N-Butyldiolamine Chemicalbook2,6-Dichloro-1,3-benzoxazole98+% 3621-82-7 C7H3Cl2NO Oxazole&Isoxazole Pesticide & intermediate 3621-82-7 bc0001