Cyclopentasiloxane

Name: Cyclopentasiloxane
Brand: 济南圣和化工有限公司

CAS 541-02-6C10H30O5Si5MW 370.77

Cyclopentasiloxane，CAS 登记号 541-02-6，由济南圣和化工有限公司现货供应，可提供纯度按批次COA提供(不公开发布) 的规格，下游主要用于Fine Chemicals；Cosmetic Raw Materials。支持样品与小批量试用，批量价格请联系我们获取，验收以批次 COA 为准。

规格参数

CAS号541-02-6

分子式C10H30O5Si5

分子量370.77

熔点-38 °C

沸点210 °C

纯度按批次COA提供(不公开发布)

包装按订单/批次确认(不公开发布)

应用领域Fine Chemicals；Cosmetic Raw Materials

类别Fine Chemicals|Cosmetic Raw Materials

用途与场景

Fine Chemicals；Cosmetic Raw Materials

包装与供货

包装规格按订单/批次确认(不公开发布)

纯度规格按批次COA提供(不公开发布)

储存条件密封、阴凉干燥处保存

供货周期现货/按订单安排

文件与支持

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常见问题

在哪里能查到 Cyclopentasiloxane 的 CAS 号？

本页已列出 Cyclopentasiloxane 的 CAS 号：541-02-6，可与随货 COA 核对。

可以提供哪些规格和包装？

常见纯度为按批次COA提供(不公开发布)，包装形式为按订单/批次确认(不公开发布)，特殊规格可在询价时说明。

Cyclopentasiloxane 一般用在什么产品里？

主要涉及Fine Chemicals；Cosmetic Raw Materials。

下单流程是怎样的？

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PubChem 公开数据

Description

CYCLOPENTASILOXANE/D5 · CAS 541-02-6 · C10H30O5Si5. UNII 0THT5PCI0R. Boiling Point: 210 °C; Melting Point: -38 °C; Flash Point: 73 °C (163 °F) - closed cup.

Identification

CAS Registry Number	541-02-6
PubChem CID	10913
Molecular formula	C10H30O5Si5
IUPAC name	2,2,4,4,6,6,8,8,10,10-decamethyl-1,3,5,7,9,2,4,6,8,10-pentaoxapentasilecane
UNII (FDA)	0THT5PCI0R

Computed Descriptors

Molecular Weight	370.77
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	5
Rotatable Bond Count	0
Exact Mass	370.09395673
Monoisotopic Mass	370.09395673
Topological Polar Surface Area	46.2
Heavy Atom Count	20
Formal Charge	0
Complexity	258

Physical & Chemical Properties

Boiling Point	210 °C
Melting Point	-38 °C
Flash Point	73 °C (163 °F) - closed cup
Solubility	In water, 1.7X10-2 mg/L at 25 °C
Density	0.9593 g/cu cm at 20 °C
Vapor Pressure	0.2 [mmHg]
Viscosity	3.9 cSt at 25 °C
Surface Tension	18.5 dyne/cm at 25 °C

Physical description & handling notes

CBI; Liquid
Colorless volatile liquid; [Merck Index]
Colorless volatile liquid
0.3 mm Hg at 25 °C (OECD Guideline 104, Static Method Ebuliometer)
log Kow = 8.06 (average of 8.03, 8.07 and 8.09 measurements)
Henry's Law constant = 33.0 atm-cu m/mole at 25 °C

Regulatory Status

Regulatory & Food Contact	FDA Cumulative Estimated Daily Intake (CEDI): FCS DECAMETHYLCYCLOPENTASILOXANE (D5) CIR / INCI: Cosmetics ingredient -> Antioxidant; Conditioning/Emollient; Moisturizing/Humectant; Other (Specify); Preserva CIR / INCI: Cosmetic ingredients (Cyclopentasiloxane) -> CIR (Cosmetic Ingredient Review) CIR / INCI: Hair conditioning; Emollient; Solvent
GHS notification summary	97% (4427 / 4565)

GHS Hazard Classification

GHS notification summary	97% (4427 / 4565)
Reported hazard statements	H227, H373, H413

This chemical does not meet GHS hazard criteria for 97% (4427 of 4565) of all reports.

Reported as not meeting GHS hazard criteria by 4427 of 4565 companies (only 3% companies provided GHS information). For more detailed information, please visit ECHA C&L website.

Documented Uses

CIR ingredient: Cyclopentasiloxane
Used as a carrier in personal care products, as a dry cleaning solvent, and to make siloxane polymers; [Merck Index]
Intermediate in the manufacture of high molecular weight siloxane polymers. Carrier ingredient in personal care products; dry cleaning solvent.
Field of application: Fuel additives; surface treatment, cleaning/washing agents; fillers; impregnation material; adhesives; binding agents; paints; laquers and varnishes; reprographic agents; softeners; surface active agents; process regulators. /From table/
Commonly used as volatile excipient in cosmetic products including antistatic, emollient, humectant, solvent, viscosity controlling and hair conditioning ... The main use of D5 in cosmetic products is in skin care products, deodorants/antiperspirants, hair care products and make up products.
Decamethylcyclopentasiloxane is used in cosmetics and toiletries.

Synonyms

DECAMETHYLCYCLOPENTASILOXANE; 541-02-6; Cyclomethicone 5; Dimethylsiloxane pentamer; Dow corning 345; Cyclic dimethylsiloxane pentamer; NUC silicone VS 7158; Silicon SF 1202; Ciclopentasiloxane; Cyclomethicone D5; Dekamethylcyklopentasiloxan; D5-sil; KF 995; DTXSID1027184; VS 7158; 0THT5PCI0R

Frequently Asked Questions

What are the CAS number and molecular formula of CYCLOPENTASILOXANE/D5?

CAS 541-02-6; molecular formula C10H30O5Si5; molecular weight — g/mol.

What other names is CYCLOPENTASILOXANE/D5 known by?

DECAMETHYLCYCLOPENTASILOXANE, 541-02-6, Cyclomethicone 5, Dimethylsiloxane pentamer, Dow corning 345, Cyclic dimethylsiloxane pentamer.

What is the regulatory status of CYCLOPENTASILOXANE/D5?

Documented regulatory listings: FDA Cumulative Estimated Daily Intake (CEDI): FCS; DECAMETHYLCYCLOPENTASILOXANE (D5); CIR / INCI: Cosmetics ingredient -> Antioxidant; Conditioning/Emollient; Moisturizing/Humectant; Other (Specify); Preserva.

Is CYCLOPENTASILOXANE/D5 classified as hazardous?

97% of GHS notifications report no hazard classification (4427 of 4565).

What are the key physical properties of CYCLOPENTASILOXANE/D5?

Boiling Point: 210 °C; Melting Point: -38 °C; Flash Point: 73 °C (163 °F) - closed cup; Solubility: In water, 1.7X10-2 mg/L at 25 °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.

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