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440191

Sigma-Aldrich

Hexamethyldisilazane

reagent grade, ≥99%

동의어(들):

Bis(trimethylsilyl)amine, HMDS

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크기 선택

100 ML
₩110,026
1 L
₩533,789

₩110,026

예상 입고일2025년 4월 21일세부사항

벌크 견적 요청
모든 사진(1)

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보기 변경
100 ML
₩110,026
1 L
₩533,789

About This Item

Linear Formula:
(CH3)3SiNHSi(CH3)3
CAS Number:
999-97-3
Molecular Weight:
161.39
Beilstein:
635752
EC Number:
213-668-5
MDL number:
MFCD00008259
UNSPSC 코드:
12352103
PubChem Substance ID:
24867576
NACRES:
NA.23

₩110,026

예상 입고일2025년 4월 21일세부사항

벌크 견적 요청

Grade

reagent grade

Quality Level

300

분석

≥99%

양식

liquid

refractive index

n20/D 1.407 (lit.)

bp

125 °C (lit.)

SMILES string

C[Si](C)(C)N[Si](C)(C)C

InChI

1S/C6H19NSi2/c1-8(2,3)7-9(4,5)6/h7H,1-6H3

InChI key

FFUAGWLWBBFQJT-UHFFFAOYSA-N

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관련 카테고리

일반 설명

Hexamethyldisilane (HMDS) is a stable and effectivereagent for trimethylsilylation of hydrogen-labile substrates such as alcohols,amines, and carboxylic acids. It is commonly used for the protection of sensitivefunctional groups during chemical synthesis. Owing to its low cost, high vapor pressure, and safety, itis widely used as a precursor in chemical vapor deposition(CVD) reactions.

애플리케이션

Hexamethyldisilane (HMDS) can be used:
  • As a silylating agent in the trimethylsilylation of alcohols under nearly neutral reaction conditions.
  • To control the molecular weights of polypeptides during ring-opening polymerization of α-amino acid N-carboxyanhydrides.
  • To fabricate silicon carbonitride thin films by plasma-enhanced CVD.
  • For specimen preparation for scanning electron microscopy and the preparation of trimethylsilyl ethers from hydroxy compounds.

특징 및 장점

  • High chemicalstability and low molecular weight
  • Nontoxic andcost-effective reagent
  • Ammonia is theonly byproduct generated during silylation
  • Silylationreaction using HDMS is nearly neutral and does not need any precaution

픽토그램

FlameSkull and crossbones
GHS02,GHS06

신호어

Danger

유해 및 위험 성명서

H225,H302 + H332,H311,H412

Hazard Classifications

Acute Tox. 3 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Aquatic Chronic 3 - Flam. Liq. 2

Storage Class Code

3 - Flammable liquids

WGK

WGK 2

Flash Point (°F)

52.5 °F - closed cup

Flash Point (°C)

11.4 °C - closed cup

개인 보호 장비

Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter

가장 최신 버전 중 하나를 선택하세요:

시험 성적서(COA)

Lot/Batch Number
SDBB3148
STBL0576
STBK6647
SHBQ2486
STBK9636

적합한 버전을 찾을 수 없으신가요?

특정 버전이 필요한 경우 로트 번호나 배치 번호로 특정 인증서를 찾을 수 있습니다.

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문서 라이브러리 방문

F Braet et al.
Journal of microscopy, 186(Pt 1), 84-87 (1997-04-01)
Critical point drying (CPD) is a common method of drying biological specimens for scanning electron microscopy (SEM). Drying by evaporation of hexamethyldisilazane (HMDS) has been described as a good alternative. This method, however, is infrequently used. Therefore, we reassessed HMDS
Rapid and highly efficient trimethylsilylation of alcohols and phenols
with hexamethyldisilazane (HMDS) catalysed by in situ generated I2
using OxoneR /KI or cerium ammonium nitrate (CAN)/KI systems
under mild conditions
Eskandar K, et al.
Journal of Chemical Sciences (Bangalore), 123(5), 703-708 (2011)
Judith J de Vries et al.
International journal of molecular sciences, 21(19) (2020-10-01)
Subjects with diabetes mellitus (DM) have an increased risk of arterial thrombosis, to which changes in clot structure and mechanics may contribute. Another contributing factor might be an increased formation of neutrophil extracellular traps (NETs) in DM. NETs are mainly
Teresa Dean et al.
Biomaterials science, 8(11), 3078-3094 (2020-04-30)
Cancer associated fibroblasts (CAFs) are a major cellular component of the tumour stroma and have been shown to promote tumour cell invasion and disease progression. CAF-cancer cell interactions are bi-directional and occur via both soluble factor dependent and extracellular matrix
Clyde Savio Pinto et al.
Scientific reports, 9(1), 12191-12191 (2019-08-23)
Apical projections are integral functional units of epithelial cells. Microvilli and stereocilia are cylindrical apical projections that are formed of bundled actin. Microridges on the other hand, extend laterally, forming labyrinthine patterns on surfaces of various kinds of squamous epithelial
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질문

1–3 / 3 질문  

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

    1 답변

    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 답변

    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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  3. What is the storage temperature of this reagent?

    1 답변

    1. This product may be stored at room temperature. For products with no specified storage temperature given on the label or product page, ambient storage may be assumed. Products that require controlled temperature storage, such as refrigeration or freezer conditions, storage temperatures are published on the product label, Certificate of Analysis, the Safety Data Sheet (SDS).

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