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: 2,3,5,6-Tetrahydro-3,3,4,5,5,8-hexamethyl-s-indacene-1,7-dione
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

55591-16-7

55591-16-7 structure

55591-16-7 structure

Name: 2,3,5,6-Tetrahydro-3,3,4,5,5,8-hexamethyl-s-indacene-1,7-dione
Chemical Name: 3,3,4,5,5,8-Hexamethyl-2,3,5,6-tetrahydro-s-indacene-1,7-dione
CAS Number: 55591-16-7
Molecular Formula: C₁₈H₂₂O₂
Molecular Weight: 270.366
Create Date: 2021-09-13 11:28:31
Modify Date: 2025-09-27 17:36:42

Names
Properties

Name	3,3,4,5,5,8-Hexamethyl-2,3,5,6-tetrahydro-s-indacene-1,7-dione
Synonyms	3,3,4,5,5,8-Hexamethyl-2,3,5,6-tetrahydro-s-indacene-1,7-dione s-Indacene-1,7-dione, 2,3,5,6-tetrahydro-3,3,4,5,5,8-hexamethyl-

Density	1.1±0.1 g/cm3
Boiling Point	421.9±45.0 °C at 760 mmHg
Molecular Formula	C₁₈H₂₂O₂
Molecular Weight	270.366
Flash Point	157.7±25.7 °C
Exact Mass	270.161987
LogP	5.28
Vapour Pressure	0.0±1.0 mmHg at 25°C
Index of Refraction	1.546

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