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If you decide to place an order during this period, we reserve the right to adjust the price based on the evolving situation. We understand that market changes may cause inconvenience. We will negotiate with you if there’s a significant price fluctuation due to tariff policy changes before the order’s actual delivery, and in such cases we may adjust or cancel the order as necessary.

Merck
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主要文件

安全信息

439223

Sigma-Aldrich

二氯甲烷

suitable for HPLC, ≥99.9%, contains 40-150 ppm amylene as stabilizer

别名:

亚甲基氯

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4 L
CN¥2,156.63

CN¥2,156.63


预计发货时间October 17, 2025详情


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4 L
CN¥2,156.63

About This Item

经验公式(希尔记法):
CH2Cl2
CAS号:
分子量:
84.93
Beilstein:
1730800
EC 号:
MDL编号:
UNSPSC代码:
12190000
PubChem化学物质编号:
NACRES:
NA.21

CN¥2,156.63


预计发货时间October 17, 2025详情


获取大包装报价

等级

HPLC grade

质量水平

蒸汽密度

2.9 (vs air)

蒸汽压

24.45 psi ( 55 °C)
6.83 psi ( 20 °C)

方案

≥99.9%

表单

liquid

自燃温度

1223 °F

包含

40-150 ppm amylene as stabilizer

expl. lim.

22 %

技术

HPLC: suitable

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此商品
D6510027099732222
Quality Level

100

Quality Level

100, 200

Quality Level

200

Quality Level

200

technique(s)

HPLC: suitable

technique(s)

-

technique(s)

gas chromatography (GC): suitable

technique(s)

-

assay

≥99.9%

assay

≥99.5%

assay

≥99.8%

assay

≥99.9% (GC)

form

liquid

form

liquid

form

liquid

form

liquid

UV absorption

λ: 235 nm Amax: 1.00, λ: 250 nm Amax: 0.05, λ: 340-400 nm Amax: 0.01, λ: 240 nm Amax: 0.20, λ: 260 nm Amax: 0.02

UV absorption

-

UV absorption

-

UV absorption

-

vapor pressure

24.45 psi ( 55 °C), 6.83 psi ( 20 °C)

vapor pressure

24.45 psi ( 55 °C), 6.83 psi ( 20 °C)

vapor pressure

24.45 psi ( 55 °C), 6.83 psi ( 20 °C), 6.86 psi ( 20 °C)

vapor pressure

24.45 psi ( 55 °C), 6.83 psi ( 20 °C)

一般描述

Dichloromethane (DCM) is a chlorinated organic solvent with a wide range of industrial applications.[1] It has C2v symmetry, low boiling point, high density and is immiscible in water.[2] Degradation of DCM by various methods has been reported.[3][4][5] Ultrasonic absorption studies of liquid DCM shows strong relaxation effect.[6] A study reports the dielectric characteristics of DCM over a wide frequency range.[2] DCM is susceptible to degradation with time, which can be suppressed by adding amylene as a stabilizer.

应用

符合 ACS 规范。
Dichloromethane (Methylene chloride) may be used in the following processes:
  • To compose ultrasonic baths for cleaning and protection of aluminum coating over atactic-PMMA (poly(methyl methacrylate)) for dielectric studies.[7]
  • Preparation of AMBF3 (ammoniomethyltrifluoroborate)-conjugated biomolecules.[8]
  • Sample preparation for GC-MS (Gas Chromatography-Mass Spectrometry) analysis.[9]
  • Preparation of ammonium acetate solvent mixture in combination with isopropanol, acetonitrile and water for mass spectral analysis of neutral lipids.[10]
  • Quantification of glutathione (GSH) and glutathione disulfide (GSSG) in biological samples by HPLC and spectrophotometry. [11]
  • As an extractant for 2,2-dithioethyl-4-(2′-pyridyl)-4-butyro-γ-lactone.[12]

包装

M-Bottle for Solvents
As a global leader in lab reagents, we are constantly looking for new ways to optimize the safety of our products. The newly developed 4L solvent bottle design features advanced sealing technology that eliminates leaks to make the handling of solvents safer and more convenient than ever before.
See all the new features here!

制备说明

产品经过 0.2μm 过滤器过滤

象形图

Health hazardExclamation mark

警示用语:

Warning

危险分类

Carc. 2 - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

靶器官

Central nervous system

储存分类代码

6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects

WGK

WGK 2

闪点(°F)

does not flash

闪点(°C)

does not flash

个人防护装备

Eyeshields, Faceshields, Gloves

法规信息

危险化学品
  • 技术规格说明书

  • 历史批次信息供参考:

    分析证书(COA)

    Lot/Batch Number

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    Rodney C Baker et al.
    Methods in enzymology, 538, 89-105 (2014-02-18)
    Mass spectrometry technology has enabled significant advances in detailing the alterations of the lipidome in response to pathological conditions or experimental manipulations. Lipids comprise a wide range of compounds with functions that include structural, intracellular signaling, trafficking, and storage. Characterization
    Jane A Mullaney et al.
    Journal of agricultural and food chemistry, 61(12), 3039-3046 (2013-03-07)
    Glucosinolates from the genus Brassica can be converted into bioactive compounds known to induce phase II enzymes, which may decrease the risk of cancers. Conversion via hydrolysis is usually by the brassica enzyme myrosinase, which can be inactivated by cooking
    Daniela Giustarini et al.
    Nature protocols, 8(9), 1660-1669 (2013-08-10)
    This protocol describes a procedure for determining glutathione (GSH) and glutathione disulfide (GSSG) concentrations in blood and other tissues. Artifactual oxidation to GSSG of 5-15% of the GSH found in a sample can occur during deproteination of biological samples with
    Matthew J Walters et al.
    Nature protocols, 2(7), 1825-1830 (2007-07-21)
    A procedure for the preparation of optically pure alpha-keto-gamma-hydroxy carboxylic acids through stereospecific aldol addition catalyzed by pyruvate aldolases from the Entner-Doudoroff and the DeLey-Doudoroff glycolytic pathways is described. This highly versatile fragment serves as a precursor for a variety
    Vitamin B12-mediated hydrodechlorination of dichloromethane by bimetallic Cu/Al particles.
    Huang CC, et al.
    Chemical Engineering Journal, 273, 413-420 (2015)

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