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03002 Sigma-Aldrich

Iodine

puriss., meets analytical specification of Ph. Eur., BP, USP, 99.8-100.5%

  • CAS Number 7553-56-2

  • Empirical Formula (Hill Notation) I2

  • Molecular Weight 253.81

  •  Beilstein/REAXYS Number 3587194

  •  EC Number 231-442-4

  •  MDL number MFCD00011355

  •  PubChem Substance ID 329747532

  •  NACRES NA.21

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Properties

Related Categories C-X Bond Formation (Halogen), Chemical Synthesis, Iodination, Synthetic Reagents
Quality Level   200
vapor density   9 (vs air)
vapor pressure   0.31 mmHg ( 25 °C)
  1 mmHg ( 38.7 °C)
grade   puriss.
assay   99.8-100.5%
quality   meets analytical specification of Ph. Eur., BP, USP
resistivity   1.3E15 μΩ-cm
impurities   residual solvents, in accordance
  ≤0.03% non-volatile matter
bp   184 °C (lit.)
mp   113 °C (lit.)
anion traces   bromide, chloride (as Cl-): ≤250 mg/kg
  sulfate (SO42-): ≤50 mg/kg
SMILES string   II
InChI   1S/I2/c1-2
InChI key   PNDPGZBMCMUPRI-UHFFFAOYSA-N

Description

General description

Iodine is a halogen compound. It is mainly present in sodium iodate (NaIO3) and sodium periodate (NaIO4) deposits. Iodine is a part of thyroxin hormone produced by the thyroid gland. It controls the body′s rate of physical and mental development.

Application

Iodine (I2) was used in the following studies:
• Synthesis of oligonucleotides using a standard Applied Biosystems 392 DNA/RNA Synthesizer.
• Fabrication of electrochemical solar cells by using the single-walled carbon nanotubes (SWNTs)-modified fluorine-doped tin oxide coated glass (FTO) glass as the working electrode.
• To compose iodide-based solution, used as the liquid electrolyte in the dye-sensitized solar cells.

It may be used for the trace-labelling of proteins. It may be used for the iodination methods, in which the cationic portion of the iodine molecule bounds to the ring structure of tyrosine. Theoretical efficiency of labelling achieved is 50%.

Safety & Documentation

Safety Information

Symbol 
Signal word 
Danger
Target organs 
Respiratory system, Thyroid
RIDADR 
UN3495 - class 8 - PG 3 - Iodine
WGK Germany 
WGK 2
RTECS 
NN1575000
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable
Protocols & Articles
Peer-Reviewed Papers
15

References

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