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Cyclopentene oxide

CAS No.
285-67-6
Chemical Name:
Cyclopentene oxide
Synonyms
6-OXABICYCLO[3.1.0]HEXANE;1,2-EPOXYCYCLOPENTANE;Cyclopentene epoxide;1,2-Epoxycyclopentane, Cyclopentene oxide;cyclopentaneoxide;Epoxycyclopentane;Cyclopentane oxide;CYCLOPENTENE OXIDE;6-OXABICYCLOHEXANE;cyclopenteneepoxide
CBNumber:
CB8162991
Molecular Formula:
C5H8O
Molecular Weight:
84.12
MDL Number:
MFCD00005161
MOL File:
285-67-6.mol
MSDS File:
SDS
Last updated:2026-05-28 03:12:07
Product description Number Pack Size Price
Cyclopentene oxide 98% 175188 5g $161
Cyclopentene oxide 98% 175188 25g $486
1,2-Epoxycyclopentane >97.0%(GC) E0513 5g $35
1,2-Epoxycyclopentane >97.0%(GC) E0513 25g $116
1,2-Epoxycyclopentane Asreported 274728 5g $389
More product size

Cyclopentene oxide Properties

Melting point 136-137 °C
Boiling point 102 °C(lit.)
Density 0.964 g/mL at 25 °C(lit.)
refractive index n20/D 1.434(lit.)
Flash point 50 °F
storage temp. 2-8°C
form Liquid
color Clear colorless to very faintly yellow
Water Solubility Immiscible with water.
BRN 102495
InChI InChI=1S/C5H8O/c1-2-4-5(3-1)6-4/h4-5H,1-3H2
InChIKey GJEZBVHHZQAEDB-UHFFFAOYSA-N
SMILES C12C(O1)CCC2
LogP 0.908 (est)
CAS DataBase Reference 285-67-6(CAS DataBase Reference)
FDA UNII U3EKO505C5
NIST Chemistry Reference cis-1,2-Epoxycyclopentane(285-67-6)
EPA Substance Registry System 6-Oxabicyclo[3.1.0]hexane (285-67-6)
UNSPSC Code 12162002
NACRES NA.23

SAFETY

Risk and Safety Statements

Symbol(GHS)  Flame (GHS02)Exclamation Mark (GHS07)
GHS02,GHS07
Signal word  Danger
Hazard statements  H225-H315-H319-H335
Precautionary statements  P210-P302+P352-P305+P351+P338
target organs Respiratory system
PPE Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
Hazard Codes  F,Xi
Risk Statements  11-36/37/38
Safety Statements  16-26-36-36/37/39
RIDADR  UN 1993 3/PG 2
WGK Germany  3
RTECS  RN8935000
TSCA  TSCA listed
HazardClass  3
PackingGroup  III
HS Code  29109000
Storage Class 3 - Flammable liquids
Hazard Classifications Eye Irrit. 2
Flam. Liq. 2
Skin Irrit. 2
STOT SE 3
Hazardous Substances Data 285-67-6(Hazardous Substances Data)
Limited Quantities 1.0 L (0.3 gallon) (liquid)
Excepted Quantities Max Inner Pack (30g or 30ml) and Max Outer Pack (500g or 500ml)
NFPA 704
3
2 0

Cyclopentene oxide price More Price(62)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 175188 Cyclopentene oxide 98% 285-67-6 5g $161 2026-04-30 Buy
Sigma-Aldrich 175188 Cyclopentene oxide 98% 285-67-6 25g $486 2026-04-30 Buy
TCI Chemical E0513 1,2-Epoxycyclopentane >97.0%(GC) 285-67-6 5g $35 2026-04-30 Buy
TCI Chemical E0513 1,2-Epoxycyclopentane >97.0%(GC) 285-67-6 25g $116 2026-04-30 Buy
Usbiological 274728 1,2-Epoxycyclopentane Asreported 285-67-6 5g $389 2026-06-03 Buy
Product number Packaging Price Buy
175188 5g $161 Buy
175188 25g $486 Buy
E0513 5g $35 Buy
E0513 25g $116 Buy
274728 5g $389 Buy

Cyclopentene oxide Chemical Properties,Uses,Production

Chemical Properties

Clear colorless to very faintly yellow liquid

Uses

Cyclopentene oxide is used to prepare beta-amino alcohols by reacting with aromatic amines using bismuth trichloride as a catalyst.

Global( 283)Suppliers
Supplier Tel Email Country ProdList Advantage
Wuhan Mayue Longteng Technology Development Co., Ltd.
+86-13071211027 helen.yan@lantu-tech.com China 293 58
Hebei Yanxi Chemical Co., Ltd.
+86-17531190177 faithe@yan-xi.com China 5838 58
Hebei Chuanghai Biotechnology Co., Ltd
+86-17732866630 mina@chuanghaibio.com China 18114 58
Henan Fengda Chemical Co., Ltd
+86-371-86557731 +86-13613820652 info@fdachem.com China 20111 58
Shanghai Daken Advanced Materials Co.,Ltd
+86-2158073036 info@dakenam.com China 14032 58
Henan Tianfu Chemical Co.,Ltd.
+86-0371-55170693 +86-19937530512 info@tianfuchem.com China 21531 55
career henan chemical co
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Xiamen AmoyChem Co., Ltd
+86-86-5926051114 sales@amoychem.com China 6361 58
CONIER CHEM AND PHARMA LIMITED
sales@conier.com China 49906 58
Guangzhou Yuheng Pharmaceutical Technology Co., Ltd
+8613580539051 joe@yuhengpharm.com CHINA 21135 58

View Lastest Price from Cyclopentene oxide manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Cyclopentene oxide pictures 2026-08-06 Cyclopentene oxide
285-67-6
$1.00-100.00 1KG 99% Henan Fengda Chemical Co., Ltd
Cyclopentene oxide pictures 2025-06-27 Cyclopentene oxide
285-67-6
$10.00-30.00 50KG 99% 500000kg Hebei Chuanghai Biotechnology Co., Ltd
Cyclopentene oxide pictures 2025-06-20 Cyclopentene oxide
285-67-6
$11.00-25.00 1kg 0.99 10 tons Hebei Yanxi Chemical Co., Ltd.
1,2-epoxy-cyclopentan 1,2-Epoxycyclopentane Cyclopentene oxide 6-Oxabicyclo[3.1.0]hexane Cyclopentene oxide,98% Cyclopentene oxide,1,2-Epoxycyclopentane, 6-Oxabicyclo[3.1.0]hexane Cyclopentene oxide, 98% 25GR Cyclopentene Oxide 6-Oxabicyclo[3.1.0]hexane cyclopentene oxide radical cation cis-1,2-epoxycyclopentane Cyclopentane oxide Cyclopentane, 1,2-epoxy- cyclopentaneoxide cyclopenteneepoxide Epoxycyclopentane CYCLOPENTENE OXIDE Epoxycyclopentane~6-Oxabicyclo[3.1.0]hexane 1,2-EPOXYCYCLOPENTANE 96+% 6-OXABICYCLOHEXANE Cyclopentene oxide, GC 97% 1,2-Epoxycyclopentane, 6-Oxabicyclo[3.1.0]hexane 1,2-Epoxycyclopentane> Cyclopentene oxide ISO 9001:2015 REACH Cyclopentene oxide purum 6-oxabicyclo[3.1.0]hexane - [X86373] 1,2-Epoxycyclopentane, Cyclopentene oxide 1,2-EPOXYCYCLOPENTANE 6-OXABICYCLO[3.1.0]HEXANE Cyclopentene epoxide 285-67-6 285-97-6 ALKENE Oxygen Compounds Epoxides Organic Building Blocks Building Blocks Pharmaceutical intermediates Organics