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324620

Sigma-Aldrich

Lithium bis(trimethylsilyl)amide

97%

동의어(들):

Hexamethyldisilazane lithium salt

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10 G
₩150,423
50 G
₩235,988
250 G
₩853,920

₩150,423

출고 가능일2025년 4월 24일세부사항

벌크 견적 요청
모든 사진(3)

크기 선택

보기 변경
10 G
₩150,423
50 G
₩235,988
250 G
₩853,920

About This Item

Linear Formula:
[(CH3)3Si]2NLi
CAS Number:
4039-32-1
Molecular Weight:
167.33
EC Number:
223-725-6
MDL number:
MFCD00008261
UNSPSC 코드:
12352111
PubChem Substance ID:
24859455
NACRES:
NA.22

₩150,423

출고 가능일2025년 4월 24일세부사항

벌크 견적 요청

Quality Level

200

분석

97%

양식

solid

pH

(12.4 at 23,7 °C)

bp

110-115 °C (at 1.33 hPa)

mp

70-71 °C

density

0.860 g/mL at 25 °C (lit.)

SMILES string

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

InChI

1S/C6H18NSi2.Li/c1-8(2,3)7-9(4,5)6;/h1-6H3;/q-1;+1

InChI key

YNESATAKKCNGOF-UHFFFAOYSA-N

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관련 카테고리

일반 설명

Lithium bis(trimethylsilyl)amide is a non-nucleophilic strong Brønsted base, which is generally soluble in most of the nonpolar organic solvents. It is most commonly employed in organic reactions.[1][2]

애플리케이션

Base employed in generating enolates for the preparation of lactone precursors,[3] pyranones,[4] and cyclohexanes.[5]
Used to catalyze the addition of phosphine P-H bonds to carbodiimides leading to phosphaguanidines.[6] Also used in a novel three-step synthesis of disubstituted 1,2,5-thiadiazoles.[7]

픽토그램

FlameCorrosion
GHS02,GHS05

신호어

Danger

유해 및 위험 성명서

H228,H251,H314

Hazard Classifications

Eye Dam. 1 - Flam. Sol. 1 - Self-heat. 1 - Skin Corr. 1B

보충제 위험성

EUH014

Storage Class Code

4.2 - Pyrophoric and self-heating hazardous materials

WGK

WGK 2

Flash Point (°F)

62.6 °F - closed cup

Flash Point (°C)

17 °C - closed cup

개인 보호 장비

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

가장 최신 버전 중 하나를 선택하세요:

시험 성적서(COA)

Lot/Batch Number
SHBS6230
SHBS6229
SHBS6228
SHBS6227
SHBS5981

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

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문서 라이브러리에서 최근에 구매한 제품에 대한 문서를 찾아보세요.

문서 라이브러리 방문

Lithium Bis(trimethylsilyl)amide and Tris(trimethylsilyl)amine
Inorganic Syntheses (1966)
Synlett, 507-507 (1993)
Wen-Xiong Zhang et al.
Chemical communications (Cambridge, England), (36), 3812-3814 (2006-09-14)
Organo alkali metal compounds such as (n)BuLi and (Me3Si)2NK act as excellent catalyst precursors for the addition of phosphine P-H bonds to carbodiimides, offering a general and atom-economical route to substituted phosphaguanidines, with excellent tolerability to aromatic C-Br and C-Cl
The Journal of Organic Chemistry, 58, 7304-7304 (1993)
Tetrahedron, 50, 9061-9061 (1994)
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질문

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  1. 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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  2. 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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