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289566

Sigma-Aldrich

Iodomethane

Iodomethane

contains copper as stabilizer, ReagentPlus®, 99.5%

Synonym(s):

Methyl iodide

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About This Item

Empirical Formula (Hill Notation):
CH3I
CAS Number:
74-88-4
Molecular Weight:
141.94
Beilstein:
969135
EC Number:
200-819-5
MDL number:
MFCD00001073
UNSPSC Code:
12352100
PubChem Substance ID:
24857202
NACRES:
NA.21
Assay:
99.5%
bp:
41-43 °C (lit.)
vapor pressure:
24.09 psi ( 55 °C)
7.89 psi ( 20 °C)
Pricing and availability is not currently available.

vapor density

4.89 (vs air)

Quality Level

200

vapor pressure

24.09 psi ( 55 °C)
7.89 psi ( 20 °C)

product line

ReagentPlus®

Assay

99.5%

form

liquid

contains

copper as stabilizer

refractive index

n20/D 1.531 (lit.)

bp

41-43 °C (lit.)

mp

−64 (lit.)

solubility

water: soluble 14 g/L at 20 °C

density

2.28 g/mL at 25 °C (lit.)

functional group

alkyl halide
iodo

storage temp.

2-8°C

SMILES string

CI

InChI

1S/CH3I/c1-2/h1H3

InChI key

INQOMBQAUSQDDS-UHFFFAOYSA-N

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General description

Iodomethane is an alkyl halide commonly employed as methylating agent.[1]

Application

Iodomethane has been used as a methylating agent to synthesize:
  • N,N-dodecyl,methyl-polyethylenimine (PEI), a microbicidal polymer with potential application in microbicidal coatings.[2]
  • Methylated-pyridine derivatives that can be used as RNA-specific fluorescent probes for live cell imaging.[3]

Legal Information

ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany

Signal Word

Danger

Hazard Classifications

Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Acute Tox. 4 Dermal - Aquatic Acute 1 - Aquatic Chronic 2 - Carc. 2 - Eye Dam. 1 - Flam. Liq. 3 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

3 - Flammable liquids

WGK

WGK 3

Flash Point(F)

89.8 °F - closed cup

Flash Point(C)

32.1 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
STBL1502
STBL2319
SDBB0642
MKCV5302
STBL0059

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Preparation, application and testing of permanent antibacterial and antiviral coatings
Haldar J, et al
Nature Protocols, 2(10), 2412-2412 (2007)
A protocol for preparing, characterizing and using three RNA-specific, live cell imaging probes: E36, E144 and F22
Li Q & Chang YT
Nature Protocols, 1(6), 2922-2922 (2006)
Interaction of tris (triphenylphosphine) chlororhodium (I) with iodomethane, methylallyl, and allyl chloride.
Lawson DN, et al.
J. Chem. Soc. Sect. A, 1733-1736 (1966)
Absolute reaction rate of chlorine atoms with iodomethane.
Kambanis KG, et al.
Chemical Physics Letters, 268(5), 498-504 (1997)
Iodomethane oxidation by dimethyldioxirane: a new route to hypoiodous acid and iodohydrines.
Asensio G, et al.
Organic Letters, 1(13), 2125-2128 (1999)
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Questions

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  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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