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229695

Sigma-Aldrich

Iodine

99.999% trace metals basis

Synonym(s):

Diiodine, Iodine crystals, Iodine molecule (I)

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About This Item

Empirical Formula (Hill Notation):
I2
CAS Number:
7553-56-2
Molecular Weight:
253.81
Beilstein/REAXYS Number:
3587194
EC Number:
231-442-4
MDL number:
MFCD00011355
UNSPSC Code:
12141916
eCl@ss:
38050601
PubChem Substance ID:
24853298
NACRES:
NA.23

vapor density

9 (vs air)

Quality Level

100

vapor pressure

0.31 mmHg ( 25 °C)
1 mmHg ( 38.7 °C)

assay

99.999% trace metals basis

form

chips
chunks
pellets

resistivity

1.3E15 μΩ-cm

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 the most electropositive halogen and the least reactive, yet it can still form compounds with a variety of elements. These unique characteristics make iodine an essential component in numerous products and processes. In the field of material science, iodine is increasingly utilized in applications such as organic photovoltaics, where it enhances the efficiency of solar cells by serving as a charge transport material. Additionally, iodine′s role in the synthesis of advanced materials, such as iodine-doped polymers, opens avenues for innovations in electronics and nanotechnology.

Application

  • Iodine-Promoted Reductive Sulfenylation Using Ketones as Hydride Donors.: Discusses a novel chemical synthesis technique using iodine to promote reductive sulfenylation, highlighting iodine′s role in innovative organic transformations (Duan et al., 2024).
  • Unraveling Intracellular Protein Corona Components of Nanoplastics via Photocatalytic Protein Proximity Labeling.: This study employs a photocatalytic protein proximity labeling method to examine the interaction between iodine and protein components on nanoplastics, enhancing our understanding of iodine′s environmental interactions (Zhang et al., 2024).

signalword

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

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

wgk_germany

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Faceshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
MKCT0298
MKCT8278
MKCS6334
MKCQ4566
MKCP5057

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Eike I Piechowiak et al.
Radiology, 275(3), 692-697 (2015-02-06)
To determine the effect of the use of iodinated contrast agents on the formation of DNA double-strand breaks during chest computed tomography (CT). This study was approved by the institutional review board, and written informed consent was obtained from all
Michael B Zimmermann
Thyroid : official journal of the American Thyroid Association, 17(9), 829-835 (2007-10-25)
Iodine is required for the production of thyroid hormones, which are essential for normal brain development, and the fetus, newborn, and young child are particularly vulnerable to iodine deficiency. The iodine requirement increases during pregnancy and recommended intakes are in
Michael B Zimmermann et al.
Nutrition reviews, 70(10), 553-570 (2012-10-06)
Iodine status has been historically assessed by palpation of the thyroid and reported as goiter rates. Goiter is a functional biomarker that can be applied to both individuals and populations, but it is subjective. Iodine status is now assessed using
Zulfiqar A Bhutta et al.
Lancet (London, England), 382(9890), 452-477 (2013-06-12)
Maternal undernutrition contributes to 800,000 neonatal deaths annually through small for gestational age births; stunting, wasting, and micronutrient deficiencies are estimated to underlie nearly 3·1 million child deaths annually. Progress has been made with many interventions implemented at scale and
Tim I M Korevaar et al.
The Journal of clinical endocrinology and metabolism, 98(11), 4382-4390 (2013-09-17)
Premature delivery is an important risk factor for child mortality and psychiatric, metabolic, and cardiovascular disease later in life. In the majority of cases, the cause of prematurity cannot be identified. Currently, it remains controversial whether abnormal maternal thyroid function
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