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376558

Sigma-Aldrich

Iodine

flakes, ReagentPlus®, ≥99%

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About This Item

Empirical Formula (Hill Notation):
I2
CAS Number:
7553-56-2
Molecular Weight:
253.81
Beilstein:
3587194
EC Number:
231-442-4
MDL number:
MFCD00011355
UNSPSC Code:
12141916
PubChem Substance ID:
329755686
NACRES:
NA.21

vapor density

9 (vs air)

vapor pressure

0.31 mmHg ( 25 °C)
1 mmHg ( 38.7 °C)

product line

ReagentPlus®

Assay

≥99%

form

flakes

resistivity

1.3E15 μΩ-cm

impurities

≤0.05% nonvolatile matter

bp

184 °C (lit.)

mp

113 °C (lit.)

SMILES string

II

InChI

1S/I2/c1-2

InChI key

PNDPGZBMCMUPRI-UHFFFAOYSA-N

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General description

Iodine is a micro nutrient essential for thyroid synthesis. It is a component of Gram′s iodine which has been reported to be used in identifying cellulase-producing microorganisms. Photogeneration of iodine from anatase TiO2 has been studied.

Application

Iodine may be used as a promoter during the synthesis of conjugated molecules with benzofulvene core. It may be employed as a TLC stain for detection of perillyl alcohol.
It may be used as a catalyst in the synthesis of the following:
  • Quinoxalines by reacting 1,2-diamines with 1,2-dicarbonyl compounds under microwave condition.
  • N-Substituted pyrroles via condensation of 2,5-dimethoxy tetrahydrofuran with amines under microwave condition.
  • Disulfidation of alkenes.

Legal Information

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

Signal Word

Danger

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Aquatic Acute 1 - Eye Irrit. 2 - Skin Irrit. 2 - STOT RE 1 Oral - STOT SE 3

Target Organs

Respiratory system, Thyroid

Storage Class Code

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

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

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Iodine-catalyzed disulfidation of alkenes.
Wang XR and Chen F.
Tetrahedron, 67(25), 4547-4551 (2011)
Chockalingam Karunakaran et al.
Chemistry Central journal, 5(1), 31-31 (2011-06-18)
The crystal structures of different forms of TiO2 and those of BaTiO3, ZnO, SnO2, WO3, CuO, Fe2O3, Fe3O4, ZrO2 and Al2O3 nanoparticles have been deduced by powder X-ray diffraction. Their optical edges have been obtained by UV-visible diffuse reflectance spectra.
Farhana Ahad et al.
Indian journal of endocrinology and metabolism, 14(1), 13-17 (2010-01-01)
Iodine is a vital micronutrient required at all stages of life; fetal life and early childhood being the most critical phases of requirement. Diet is the sole source of iodine, which in turn is dependent upon the iodine content of
Debasish Bandyopadhyay et al.
Molecules (Basel, Switzerland), 15(6), 4207-4212 (2010-07-27)
A microwave-induced iodine-catalyzed simple, rapid and convenient synthesis of different types of quinoxalines via condensation of 1,2-diamines with 1,2-dicarbonyl compounds has been accomplished with an excellent yield.
Ramesh Chand Kasana et al.
Current microbiology, 57(5), 503-507 (2008-09-24)
Screening for cellulase-producing microorganisms is routinely done on carboxymethylcellulose (CMC) plates. The culture plates are flooded either with 1% hexadecyltrimethyl ammonium bromide or with 0.1% Congo red followed by 1 M NaCl. In both cases, it takes a minimum of
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