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ChemicalBook >> CAS DataBase List >>7,7-Dichlorobicyclo[3.2.0]hept-2-en-6-one

7,7-Dichlorobicyclo[3.2.0]hept-2-en-6-one

7,7-Dichlorobicyclo[3.2.0]hept-2-en-6-one Structure
7,7-Dichlorobicyclo[3.2.0]hept-2-en-6-one structure
CAS No.
5307-99-3
Chemical Name:
7,7-Dichlorobicyclo[3.2.0]hept-2-en-6-one
Synonyms
NSC 116987;Dichlorobicycloheptenone;Prostaglandin Impurity 4;7,7-Dichloro[3.2.0]hept-2-en-6-one;7,7-DICHLOROBICYCLO[3.2.0]HEPT-2-ENONE;7,7-DICHLOROBICYCLO[3.2.0]HEPT-2-EN-6-ONE;6,6-dichlorobicyclo[3.2.0]hept-3-en-7-one;7,7-DICHLOROBICYCLO[3.2.0]HEPT-2-ENE-6-ONE;7,7-Dichloro-6-oxobicyclo[3.2.0]hept-2-ene;Bicyclo[3.2.0]hept-2-en-6-one, 7,7-dichloro-
CBNumber:
CB0472056
Molecular Formula:
C7H6Cl2O
Molecular Weight:
177.03
MDL Number:
MFCD00013738
MOL File:
5307-99-3.mol
MSDS File:
SDS
Last updated:2026-05-27 22:44:53
Request For Quotation

7,7-Dichlorobicyclo[3.2.0]hept-2-en-6-one Properties

Boiling point 58-64 °C (0.5 mmHg)
Density 1.44±0.1 g/cm3(Predicted)
refractive index 1.5150
Flash point 127-128°C/25mm
storage temp. Refrigerator (+4°C)
form liquid
color Clear, dark orange
BRN 2045059
InChI InChI=1S/C7H6Cl2O/c8-7(9)5-3-1-2-4(5)6(7)10/h1,3-5H,2H2
InChIKey JBPBARAOHIDZPU-UHFFFAOYSA-N
SMILES C12C(C(=O)C1(Cl)Cl)CC=C2
CAS DataBase Reference 5307-99-3(CAS DataBase Reference)

SAFETY

Risk and Safety Statements

Symbol(GHS)  Corrosion (GHS05)Exclamation Mark (GHS07)
GHS05,GHS07
Signal word  Danger
Hazard statements  H315-H319-H302-H314
Precautionary statements  P280-P305+P351+P338-P310-P264-P280a-P321-P332+P313-P337+P313
Hazard Codes  Xi,C
Risk Statements  36/37/38-34-22
Safety Statements  26-36/37/39-45
RIDADR  UN 3265 8 / PGIII
WGK Germany  2
Hazard Note  Irritant
HS Code  2914290090
NFPA 704
1
2 0

7,7-Dichlorobicyclo[3.2.0]hept-2-en-6-one price More Price(17)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Apolloscientific OR0347 7,7-Dichlorobicyclo[3.2.0]hept-2-ene-6-one 95% 5307-99-3 1g $107 2026-06-04 Buy
aablocks AA003N9K 7,7-Dichlorobicyclo[3.2.0]Hept-2-En-6-One 98% 5307-99-3 1g $24 2026-05-28 Buy
aablocks AA003N9K 7,7-Dichlorobicyclo[3.2.0]Hept-2-En-6-One 98% 5307-99-3 5g $76 2026-05-28 Buy
aablocks AA003N9K 7,7-Dichlorobicyclo[3.2.0]Hept-2-En-6-One 95% 5307-99-3 25g $318 2026-05-28 Buy
ACHEMBLOCK U104665 7,7-Dichlorobicyclo[3.2.0]hept-3-en-6-one 95.00% 5307-99-3 5G $145 2026-05-27 Buy
Product number Packaging Price Buy
OR0347 1g $107 Buy
AA003N9K 1g $24 Buy
AA003N9K 5g $76 Buy
AA003N9K 25g $318 Buy
U104665 5G $145 Buy

7,7-Dichlorobicyclo[3.2.0]hept-2-en-6-one Chemical Properties,Uses,Production

Chemical Properties

clear brown liquid

Synthesis

Under nitrogen protection, to a solution of dichloracetyl chloride (34 g, 0.23 mol) and cyclopentadiene(60 ml, 0.7 mol) in pentane (230 ml), heated to reflux in a three-necked flask with constant pressure funnel and condenser tube, was added dropwise via funnel triethylamine (24 g, 0.24 mol) in pentane (100 ml) with mechanical stirring during 4 hours, and a lot of white triethylamine hydrochloride was produced. After reflux for 2 hours, water (80 ml) was added to dissolve the triethylamine hydrochloride. The reaction mixture was extracted with pentane (2 × 60ml). The combined extracts were filtered and dried over anhydrous Na2SO4, and concentrated in vacuo to give brownish black oil. Fraction of reduced pressure distillation at 83~87 °C/400 Pa was collected to give 7,7-Dichlorobicyclo[3.2.0]hept-2-en-6-one (2, 33.5 g) as a colorless oil.

7,7-Dichlorobicyclo[3.2.0]hept-2-en-6-one synthesis

542-92-7
76-02-8
5307-99-3
Synthesis of 7,7-Dichlorobicyclo[3.2.0]hept-2-en-6-one from 1,3-Cyclopentadiene and Trichloroacetyl chloride

7,7-Dichlorobicyclo[3.2.0]hept-2-en-6-one Preparation Products And Raw materials

Raw materials

2-Propenoyl chloride, 3,3-dichloro- dichloroketene 1,3-Cyclopentadiene Dichloroacetyl chloride Trichloroacetyl chloride

Preparation Products

HEPTENOPHOS

7,7-Dichlorobicyclo[3.2.0]hept-2-en-6-one Suppliers

Global( 88)Suppliers
Supplier Tel Email Country ProdList Advantage
Changchun BC＆HC Pharmaceutical Technology Co.,Ltd 043188417879 15804318257 3468242165@qq.com China 195 58
Meryer (Shanghai) Chemical Technology Co., Ltd. 4006356688 18621169109 market03@meryer.com China 40202 62
Alfa Aesar 400-6106006 saleschina@alfa-asia.com China 30103 84
Energy Chemical 400-0056266 sales8178@energy-chemical.com China 44850 61
EnliPharma Technology Co., Ltd 0551-66399836 18955197623 sales@enlipharma.com China 1875 55
Shanghai Meishui Chemical Technology Co., Ltd 021-60549325 18616193163 China 4518 56
Bide Pharmatech Ltd. 400-164-7117 18317119277 product02@bidepharm.com China 40000 60
Quality Control Solutions Ltd. 0755-66853366 13670046396 orders@qcsrm.com China 18188 56
Chengdu HuaXia Chemical Reagent Co. Ltd 400-1166-196 13458535857 cdhxsj@163.com China 13323 58
Shandong Xiya Chemical Co., Ltd. 4009903999 13395398332 sales@xiyashiji.com China 20788 60
Supplier Advantage
Changchun BC＆HC Pharmaceutical Technology Co.,Ltd 58
Meryer (Shanghai) Chemical Technology Co., Ltd. 62
Alfa Aesar 84
Energy Chemical 61
EnliPharma Technology Co., Ltd 55
Shanghai Meishui Chemical Technology Co., Ltd 56
Bide Pharmatech Ltd. 60
Quality Control Solutions Ltd. 56
Chengdu HuaXia Chemical Reagent Co. Ltd 58
Shandong Xiya Chemical Co., Ltd. 60

View Lastest Price from 7,7-Dichlorobicyclo[3.2.0]hept-2-en-6-one manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
7,7-DICHLOROBICYCLO[3.2.0]HEPT-2-EN-6-ONE pictures 2021-08-12 7,7-DICHLOROBICYCLO[3.2.0]HEPT-2-EN-6-ONE
5307-99-3
 $10.00-15.00 1KG 99%+ HPLC Zhuozhou Wenxi import and Export Co., Ltd

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7,7-DICHLOROBICYCLO[3.2.0]HEPT-2-EN-6-ONE 7,7-DICHLOROBICYCLO[3.2.0]HEPT-2-ENE-6-ONE 7,7-DICHLOROBICYCLO[3.2.0]HEPT-2-ENONE Bicyclo[3.2.0]hept-2-en-6-one, 7,7-dichloro- Dichlorobicycloheptenone 7,7-Dichlorobicyclo3.2.0ühept-2-en-6-one, 97% 7,7-DICHLOROBICYCLO(3.2.0)HEPT-2-EN-6-ONE,98% 7,7-Dichloro[3.2.0]hept-2-en-6-one NSC 116987 (±)-cis-7,7-Dichlorobicyclo[3.2.0]hept-2-en-6-one 3-(5-Bromo-2,4-dimethoxy-phenl)-3-oxo-propionic acid methyl ester 6,6-dichlorobicyclo[3.2.0]hept-3-en-7-one 7,7-Dichloro-6-oxobicyclo[3.2.0]hept-2-ene Prostaglandin Impurity 4 (+/-)-7,7-dichlorobicyclo[3.2.0]hept-2-en-6-one 117,7-DiChlorobicyclo[3.2.0]hepten-2-en-6-one 5307-99-3