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

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: OCTADECAMETHYLCYCLONONASILOXANE
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

556-71-8

556-71-8 structure

556-71-8 structure

Name: OCTADECAMETHYLCYCLONONASILOXANE
Chemical Name: 2,2,4,4,6,6,8,8,10,10,12,12,14,14,16,16,18,18-octadecamethyl-1,3,5,7,9,11,13,15,17-nonaoxa-2,4,6,8,10,12,14,16,18-nonasilacyclooctadecane
CAS Number: 556-71-8
Molecular Formula: C₁₈H₅₄O₉Si₉
Molecular Weight: 667.38500
Create Date: 2017-08-25 11:28:22
Modify Date: 2025-08-25 22:16:25

Name	2,2,4,4,6,6,8,8,10,10,12,12,14,14,16,16,18,18-octadecamethyl-1,3,5,7,9,11,13,15,17-nonaoxa-2,4,6,8,10,12,14,16,18-nonasilacyclooctadecane
Synonyms	Octadecamethylcyclononasiloxan Octadeamethyl-cyclononasiloxane Cyclononasiloxane,octadecamethyl OCTADECAMETHYLCYCLONONASILOXANE

Density	0.98g/cm3
Boiling Point	415.7ºC at 760mmHg
Melting Point	-27 °C
Molecular Formula	C₁₈H₅₄O₉Si₉
Molecular Weight	667.38500
Flash Point	198.1ºC
Exact Mass	666.16900
PSA	83.07000
LogP	6.46560
Index of Refraction	1.436

75-78-5 structure

75-78-5

~%

556-71-8 structure

556-71-8

Literature: Journal of the American Chemical Society, , vol. 68, p. 360,363

Precursor 1
75-78-5
DownStream 0

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