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重要文件

444278

Sigma-Aldrich

十甲基环五硅氧烷

97%

同義詞:

2,2,4,4,6,6,8,8,10,10-Decamethylcyclopentasiloxane, Cyclic dimethylsiloxane pentamer, Cyclo-decamethylpentasiloxane, Cyclomethicone pentamer 245, Decamethylpentacyclosiloxane

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About This Item

經驗公式(希爾表示法):
C10H30O5Si5
CAS號碼:
分子量::
370.77
Beilstein:
1800166
EC號碼:
MDL號碼:
分類程式碼代碼:
12352103
PubChem物質ID:
NACRES:
NA.22
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品質等級

化驗

97%

形狀

liquid

折射率

n20/D 1.396 (lit.)

bp

90 °C/10 mmHg (lit.)

密度

0.958 g/mL at 25 °C (lit.)

SMILES 字串

C[Si]1(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O1

InChI

1S/C10H30O5Si5/c1-16(2)11-17(3,4)13-19(7,8)15-20(9,10)14-18(5,6)12-16/h1-10H3

InChI 密鑰

XMSXQFUHVRWGNA-UHFFFAOYSA-N

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一般說明

十甲基环五硅氧烷(D5)可用于个人护理产品,包括护肤霜、化妆品、洗发水、除臭剂和护发素。D5还用于工业清洗液和干洗剂等多种应用。[1]

應用

十甲基环五硅氧烷(D5)可用作:
  • 更绿色的合成化学溶剂。[2]
  • 各种碱催化聚合反应的单体单元,用于合成聚硅氧烷聚合物。[3][4]

儲存類別代碼

10 - Combustible liquids

水污染物質分類(WGK)

WGK 2

閃點(°F)

163.4 °F - closed cup

閃點(°C)

73 °C - closed cup

個人防護裝備

Eyeshields, Gloves, multi-purpose combination respirator cartridge (US)


從最近期的版本中選擇一個:

分析證明 (COA)

Lot/Batch Number

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存取文件庫

Characterization of ecological risks from environmental releases of decamethylcyclopentasiloxane (D5).
Fairbrother A, et al.
Environmental Toxicology and Chemistry / Setac, 34(12), 2715-2722 (2015)
Qiyan Li et al.
Cell biochemistry and function, 32(2), 183-187 (2013-09-03)
Corneal epithelial barrier dysfunction is harmful to corneal health; the pathogenesis is unclear. This study aims to elucidate the mechanism by which tryptase compromises corneal epithelial barrier function. Human corneal epithelial cell line (HCE cells) was cultured into monolayers using
Ring-opening polymerization of decamethylcyclopentasiloxane initiated by a superbase: Kinetics and rheology.
Pibre G, et al.
Polymer, 49(1), 234-240 (2008)
Ying Chen et al.
Materials (Basel, Switzerland), 15(1) (2022-01-12)
To investigate the toxicity of the low-molecular-weight components (LMWCs) in ophthalmic silicone oils (SilOils) on retinal cell lines. The toxicity of six types of LMWCs were studied and compared with conventional SilOil 1000 cSt. In vitro cytotoxic tests of LMWCs
Deoligomerization of cyclooligosiloxanes with dimethyl carbonate over solid-base catalysts.
Okamoto M, et al.
Catalysis Letters, 88(3-4), 115-118 (2003)

Questions

1–2 of 2 Questions  
  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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