环五硅氧烷

Name: 环五硅氧烷
Brand: 济南圣和化工有限公司

CAS 541-02-6C10H30O5Si5MW 370.77

济南圣和化工有限公司现供应精细化学品——环五硅氧烷（CAS 541-02-6），分子式 C10H30O5Si5，分子量 370.77。本页理化参数仅供参考，实际常规纯度按批次COA提供(不公开发布)，以批次 COA 及订单确认为准，支持批量采购与长期供货协议。

产品概览

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	精细化学品；化妆品原料
类别	精细化学品\|化妆品原料

应用领域

精细化学品；化妆品原料

目前环五硅氧烷主要服务于精细化学品与化妆品原料两大方向。我们可按应用场景提供不同规格，随货 COA 列明实测指标，方便您做入厂检验比对。

包装与储存

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

运输常规化工运输

样品可协商提供

交期现货/按订单安排

供货能力：环五硅氧烷备有现货，包装形式为按订单/批次确认(不公开发布)。我们支持对公转账并开具增值税发票，山东省内可安排快速配送，省外按物流时效发货，具体请联系 info@591daili.com。

质量与文件

每批产品随货提供 COA（分析证书）；可按需提供 MSDS/技术数据表及第三方检测报告。纯度与包装以批次 COA 及订单确认为准。

关于供应商

选择济南圣和化工有限公司的理由：产品信息透明（含 CAS、分子式、理化参数）、报价响应快（一个工作日内）、单证齐全（COA/MSS/质检资料按需提供）、支持批量与长期协议供货。如需环五硅氧烷以外的配套原料，也欢迎一并列出需求清单。

常见问题

环五硅氧烷的 CAS 号是多少？

环五硅氧烷的 CAS 号为 541-02-6。

该产品的纯度和包装规格是什么？

常规纯度规格为按批次COA提供(不公开发布)，包装为按订单/批次确认(不公开发布)，随货提供 COA。

环五硅氧烷有什么用途？

主要应用于精细化学品；化妆品原料。

如何购买或获取报价？

请发送邮件至 info@591daili.com 或通过 WhatsApp 联系，注明产品名称、CAS 号与需求数量，一个工作日内回复报价。供应商：济南圣和化工有限公司。

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.