十六甲基七硅氧烷

Description

Hexadecamethylheptasiloxane · CAS 541-01-5 · C16H48O6Si7. UNII SCX8MCG39Z. Boiling Point: 286.8 °C; Boiling Point: BP: 270 °C; Melting Point: -78 °C.

Identification

CAS Registry Number	541-01-5
PubChem CID	10912
Molecular formula	C16H48O6Si7
IUPAC name	bis[[[dimethyl(trimethylsilyloxy)silyl]oxy-dimethylsilyl]oxy]-dimethylsilane
UNII (FDA)	SCX8MCG39Z

Computed Descriptors

Molecular Weight	533.1
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	6
Rotatable Bond Count	12
Exact Mass	532.18357499
Monoisotopic Mass	532.18357499
Topological Polar Surface Area	55.4
Heavy Atom Count	29
Formal Charge	0
Complexity	493

Physical & Chemical Properties

Boiling Point	286.8 °C
Boiling Point	BP: 270 °C
Melting Point	-78 °C
Density	0.9012 g/cu cm at 20 °C
Heat of Vaporization	60.8 kJ/mol

Physical description & handling notes

• Liquid
• Very soluble in benzene, ligroin
• 5.55X10-4 mm Hg at 25 °C (extrapolated)
• Index of refraction: 1.3965 at 20 °C/D

Regulatory Status

GHS notification summary	100% (5 / 5)

GHS Hazard Classification

GHS notification summary	100% (5 / 5)

Documented Uses

• Heptasiloxane, 1,1,1,3,3,5,5,7,7,9,9,11,11,13,13,13-hexadecamethyl-: ACTIVE
• Silicone fluids are used as damping fluids, dielectric fluids, polishes, cosmetic and personal care additives, textile finishes, hydraulic fluids, paint additives, photocopy fuser oils, and heat-transfer oils. /Silicone fluids/

Synonyms

HEXADECAMETHYLHEPTASILOXANE; Heptasiloxane, hexadecamethyl-; HSDB 8420; EINECS 208-763-3; DTXSID8060242; CHEBI:132295; HEPTASILOXANE, HEXADECAMETHYL; Heptasiloxane, 1,1,1,3,3,5,5,7,7,9,9,11,11,13,13,13-hexadecamethyl-; RefChem:145944; DTXCID8041589; Heptasiloxane, 1,1,1,3,3,5,5,7,7,9,9,11,11,13,13,13hexadecamethyl; 208-763-3; NFVSFLUJRHRSJG-UHFFFAOYSA-N; 541-01-5; Hexadecamethyl heptasiloxane; 1,1,1,3,3,5,5,7,7,9,9,11,11,13,13,13-Hexadecamethylheptasiloxane

Frequently Asked Questions

What are the CAS number and molecular formula of Hexadecamethylheptasiloxane?

CAS 541-01-5; molecular formula C16H48O6Si7; molecular weight — g/mol.

What other names is Hexadecamethylheptasiloxane known by?

HEXADECAMETHYLHEPTASILOXANE, Heptasiloxane, hexadecamethyl-, HSDB 8420, EINECS 208-763-3, DTXSID8060242, CHEBI:132295.

Is Hexadecamethylheptasiloxane classified as hazardous?

100% of GHS notifications report no hazard classification (5 of 5).

What are the key physical properties of Hexadecamethylheptasiloxane?

Boiling Point: 286.8 °C; Boiling Point: BP: 270 °C; Melting Point: -78 °C; Density: 0.9012 g/cu cm at 20 °C.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.