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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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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
Iodine-catalyzed disulfidation of alkenes.
Wang XR and Chen F.
Tetrahedron, 67(25), 4547-4551 (2011)
Debasish Bandyopadhyay et al.
Molecules (Basel, Switzerland), 15(4), 2520-2525 (2010-04-30)
An expeditious synthesis of N-substituted pyrroles has been developed by reacting 2,5-dimethoxy tetrahydrofuran and several amines using a microwave-induced molecular iodine-catalyzed reaction under solventless conditions.
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.
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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