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67690

Sigma-Aldrich

Iodomethane

puriss., redist., ≥99.5% (GC)

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/REAXYS Number:
969135
EC Number:
200-819-5
MDL number:
MFCD00001073
UNSPSC Code:
12352100
PubChem Substance ID:
329760658

vapor density

4.89 (vs air)

vapor pressure

24.09 psi ( 55 °C)
7.89 psi ( 20 °C)

grade

puriss.

assay

≥99.5% (GC)

quality

redist.

contains

silver wool as stabilizer

refractive index

n20/D 1.530
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.)

SMILES string

CI

InChI

1S/CH3I/c1-2/h1H3

InChI key

INQOMBQAUSQDDS-UHFFFAOYSA-N

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Other Notes

Reagent for the permethylation according to Lederer[1]

replaced by

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Description
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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

3 - Flammable liquids

wgk_germany

WGK 3

flash_point_f

89.8 °F - closed cup

flash_point_c

32.1 °C - closed cup

ppe

Faceshields, Gloves, Goggles

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Mass spectrometry of N-permethylated peptide derivatives; artifacts produced by C-methylation.
D W. Thomas
FEBS letters, 5(1), 53-56 (1969-09-01)
Interaction of tris (triphenylphosphine) chlororhodium (I) with iodomethane, methylallyl, and allyl chloride.
Lawson DN, et al.
J. Chem. Soc. Sect. A, 1733-1736 (1966)
Iodomethane oxidation by dimethyldioxirane: a new route to hypoiodous acid and iodohydrines.
Asensio G, et al.
Organic Letters, 1(13), 2125-2128 (1999)
Efficient methylation of carboxylic acids with potassium hydroxide/methyl sulfoxide and iodomethane.
Avila-Zarraga JG and Martinez R.
Synthetic Communications, 31(14), 2177-2183 (2001)
Eagleson M.
Concise Encyclopedia Chemistry, 649-649 (1994)
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