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: 2H-1-Benzopyran-2-one,3,4-diethyl-(9CI)
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

638187-28-7

638187-28-7 structure

638187-28-7 structure

Name: 2H-1-Benzopyran-2-one,3,4-diethyl-(9CI)
Chemical Name: 3,4-Diethyl-2H-chromen-2-one
CAS Number: 638187-28-7
Molecular Formula: C₁₃H₁₄O₂
Molecular Weight: 202.249
Create Date: 2021-09-11 13:31:57
Modify Date: 2025-10-06 17:12:48

Names
Properties

Name	3,4-Diethyl-2H-chromen-2-one
Synonyms	2H-1-Benzopyran-2-one, 3,4-diethyl- 3,4-Diethyl-2H-chromen-2-one

Density	1.1±0.1 g/cm3
Boiling Point	331.9±11.0 °C at 760 mmHg
Molecular Formula	C₁₃H₁₄O₂
Molecular Weight	202.249
Flash Point	137.3±16.7 °C
Exact Mass	202.099380
LogP	4.08
Vapour Pressure	0.0±0.7 mmHg at 25°C
Index of Refraction	1.533

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