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: Pentanoic acid,5-(1,3-dihydro-3-oxo-2H-indol-2-ylidene)-4-oxo-
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

31556-10-2

31556-10-2 structure

31556-10-2 structure

Name: Pentanoic acid,5-(1,3-dihydro-3-oxo-2H-indol-2-ylidene)-4-oxo-
Chemical Name: (5E)-4-oxo-5-(3-oxo-1H-indol-2-ylidene)pentanoic acid
CAS Number: 31556-10-2
Molecular Formula: C₁₃H₁₁NO₄
Molecular Weight: 245.23100
Create Date: 2017-11-11 17:32:38
Modify Date: 2025-09-28 17:30:10

Names
Properties

Name	(5E)-4-oxo-5-(3-oxo-1H-indol-2-ylidene)pentanoic acid
Synonyms	4-oxo-5-(3-oxo-1,3-dihydro-indol-2-ylidene)-pentanoic acid 4-Oxo-5-(3-oxo-indol-2-yliden)-valeriansaeure

Density	1.446g/cm3
Boiling Point	485.1ºC at 760mmHg
Molecular Formula	C₁₃H₁₁NO₄
Molecular Weight	245.23100
Flash Point	247.2ºC
Exact Mass	245.06900
PSA	83.47000
LogP	1.75060
Index of Refraction	1.674

The content on this webpage is sourced from various professional data sources. If you have any questions or concerns regarding the content, please feel free to contact service1@chemsrc.com.