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270997

Dichloromethane

anhydrous, ≥99.8%, contains 40-150 ppm amylene as stabilizer

Synonym(s):

DCM, Methylene chloride

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About This Item

Linear Formula:
CH2Cl2
CAS Number:
Molecular Weight:
84.93
UNSPSC Code:
12352101
NACRES:
NA.21
PubChem Substance ID:
EC Number:
200-838-9
Beilstein/REAXYS Number:
1730800
MDL number:
Assay:
≥99.8%
Grade:
anhydrous
Technique(s):
gas chromatography (GC): suitable
Bp:
39.8-40 °C (lit.)
Vapor pressure:
24.45 psi ( 55 °C), 6.83 psi ( 20 °C), 6.86 psi ( 20 °C)
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grade

anhydrous

Quality Segment

agency

suitable for EPA 1613

vapor density

2.9 (vs air)

vapor pressure

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

assay

≥99.8%

form

liquid

autoignition temp.

1223 °F

contains

40-150 ppm amylene as stabilizer

expl. lim.

22 %

technique(s)

gas chromatography (GC): suitable

impurities

≤0.001% water, ≤0.005% water (100 mL pkg)

evapn. residue

<0.0005%

refractive index

n20/D 1.424 (lit.)

bp

39.8-40 °C (lit.)

mp

−95 °C (lit.)

density

1.325 g/mL at 25 °C (lit.)

SMILES string

ClCCl

InChI

1S/CH2Cl2/c2-1-3/h1H2

InChI key

YMWUJEATGCHHMB-UHFFFAOYSA-N

General description

Our anhydrous solvents deliver exceptionally low water content, making them the ideal choice for moisture-sensitive laboratory applications. Packaged in the exclusive Sure/Seal™ septum bottle system, they are reliably protected against moisture ingress from first use to last drop. The innovative Sure/Seal™ closure combines an advanced plug-style liner with an airtight elastomer and crimp cap design to ensure consistent product integrity. Three unique liner materials provide optimal chemical compatibility across a broad range of solvents. Sure/Seal™ packaging is proven to maintain anhydrous conditions even after repeated punctures. With more than 70 products across all major solvent families, available in pack sizes from 100 mL to 2 L, the portfolio meets virtually every laboratory need. By choosing ready-to-use anhydrous solvents in Sure/Seal™ packaging, researchers eliminate the need for time-consuming and hazardous in-house solvent drying and distillation - saving time, reducing risk, and improving reproducibility.

Application

Dichloromethane has been used for the quantification of herbivore (gypsy moth) induced blueberry volatiles by gas chromatography (GC).
Anhydrous solvents in Sure/Seal™ packaging are essential wherever water contamination would compromise experimental results. They are widely used in moisture-sensitive applications such as organic synthesis - including Grignard reactions, organometallic chemistry, and catalysis - as well as in peptide, oligonucleotide, and pharmaceutical synthesis.

Legal Information

Sure/Seal is a trademark of Sigma-Aldrich Co. LLC

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This Item
91301
description

anhydrous, ≥99.8%, contains 40-150 ppm amylene as stabilizer

description

Selectophore™, ≥99.5% (GC), inhibitor-free

grade

anhydrous

grade

-

technique(s)

gas chromatography (GC): suitable

technique(s)

GC/GC: suitable

assay

≥99.8%

assay

≥99.5% (GC)

Quality Level

200

Quality Level

200

form

liquid

form

liquid

vapor density

2.9 (vs air)

vapor density

2.9 (vs air)


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Pictograms

Health hazardExclamation mark

Signal Word

Warning

Hazard Classifications

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

Target Organs

Central nervous system

WGK

WGK 2

PPE (personal protective equipment)

Eyeshields, Faceshields, Gloves

Storage Class

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects



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Questions

1–2 of 2 Questions  
  1. 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/418/501/product-dating-information-06-25-mk.pdf

      Helpful?

  2. 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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