Shanghai Nianxing Industrial Co., Ltd
China
Product Name: Palmitic acid
Price: Check
Purity: 98.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 2-Cyclopentene-1-acetaldehyde, 5-ethylidene-4-oxo-, (5Z)- (9CI)
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

657390-27-7

657390-27-7 structure

657390-27-7 structure

Name: 2-Cyclopentene-1-acetaldehyde, 5-ethylidene-4-oxo-, (5Z)- (9CI)
Chemical Name: [(5Z)-5-Ethylidene-4-oxo-2-cyclopenten-1-yl]acetaldehyde
CAS Number: 657390-27-7
Molecular Formula: C₉H₁₀O₂
Molecular Weight: 150.174
Create Date: 2021-09-08 23:25:28
Modify Date: 2025-09-12 01:50:08

Names
Properties

Name	[(5Z)-5-Ethylidene-4-oxo-2-cyclopenten-1-yl]acetaldehyde
Synonyms	2-Cyclopentene-1-acetaldehyde, 5-ethylidene-4-oxo-, (5Z)- [(5Z)-5-Ethylidene-4-oxo-2-cyclopenten-1-yl]acetaldehyde

Density	1.1±0.1 g/cm3
Boiling Point	279.7±29.0 °C at 760 mmHg
Molecular Formula	C₉H₁₀O₂
Molecular Weight	150.174
Flash Point	104.0±21.3 °C
Exact Mass	150.068085
LogP	0.92
Vapour Pressure	0.0±0.6 mmHg at 25°C
Index of Refraction	1.575

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