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: naphthgeranine E
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

137109-47-8

137109-47-8 structure

137109-47-8 structure

Name: naphthgeranine E
Chemical Name: 3,8,10-trihydroxy-2-(hydroxymethyl)-5,5-dimethylnaphtho[2,3-c]isochromene-7,12-dione
CAS Number: 137109-47-8
Molecular Formula: C₂₀H₁₆O₇
Molecular Weight: 368.33700
Create Date: 2018-07-06 09:12:17
Modify Date: 2025-08-29 15:04:41

Names
Properties

Name	3,8,10-trihydroxy-2-(hydroxymethyl)-5,5-dimethylnaphtho[2,3-c]isochromene-7,12-dione
Synonyms	Naphthgeranine E 5H-Benzo(d)naphtho(2,3-b)pyran-7,12-dione,3,8,10-trihydroxy-2-(hydroxymethyl)-5,5-dimethyl

Density	1.64g/cm3
Boiling Point	698.4ºC at 760mmHg
Molecular Formula	C₂₀H₁₆O₇
Molecular Weight	368.33700
Flash Point	255.8ºC
Exact Mass	368.09000
PSA	124.29000
LogP	2.35130
Vapour Pressure	1.79E-20mmHg at 25°C
Index of Refraction	1.759

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