Iodine

CAS Number 7553-56-2
Molecular Formula I2
Molecular Weight 253.809 g/mol
InChI Key PNDPGZBMCMUPRI-UHFFFAOYSA-N
LogP 1.86
Synonyms
  • Iodine
  • 7553-56-2
  • Actomar
  • DentaPure DP 90
  • Diatomic iodine
  • Diiodine
  • Iodel FD
  • Iodine colloidal
  • Iodine crystals
  • Iodine molecule
  • Iodine sublimed
  • IODINE TINCTURE
  • Iosan Superdip
  • JOD, FREIES
  • Jodosan
  • Molecular iodine
  • NSC 42355
  • Tegodyne
  • Caswell No. 501
  • EINECS 231-442-4
  • EPA Pesticide Chemical Code 046905
  • Iodine ((127)I2)
  • Iodine Tincture USP
  • Vistarin
  • UNII-9679TC07X4
  • I2
  • Iode
  • Iodine-molecule
  • Iodio
  • Iodum
  • Jod
  • Jood
  • Tincture iodine
  • diiodane
  • 24503-90-0
  • 8012-81-5
  • 8012-85-9
  • 8031-47-8

Applications:


HPLC Separation of Sodium, Chloride, Bromide, and Iodine


Halide ions are usually analyzed by ion-chromatography with a conductivity detector. Mixed-mode chromatography in combination with ELSD is offering a valuable alternative to ion-chromatography with conductivity detection. Chloride, bromide and iodide were separated on a Primesep SB mixed-mode anion-exchange column. Mobile phase is compatible with ELSD and LC/MS.



Application Analytes:

Bromide
Chloride
Iodine
Sodium

HPLC Method for Analysis of Iodide and Thyroid Hormones
  Iodine is an important element in production of thyroid hormones, T3 and T4, which are essential regulators of organism's metabolism. The glands' concentration of Iodide, hormones T3 and T4, along with their precursors: 3,5-Diiodo-L-thyronine (T2), 3,5-Diiodo-L-tyrosine (DIT), and 3-Iodo-L-tyrosine (MIT) can now be studied simultaneously with this HPLC method.  In order to analyze the hydrophobic hormones along with iodide (a very polar inorganic ion) a special mixed-mode column, Primesep D, was used.  This column provides both strong hydrophobic and anion exchange properties.  The Primesep D silica-bonded ligand is comprised of a long alkyl chain and an embedded amino functional group.  The TFA was used as an ionic modifier to provide stable acidic pH and sufficient ion strength for the mobile phase.  The mobile phase composition is suitable for UV, MS, ELSD, and CAD detection.  

Condition

Column Primesep D, 4.6x150 mm, 5 µm, 100A
Mobile Phase MeCN 2% 3 min hold, Gradient MeCN - 2-55%, 12 min
Buffer TFA - 0.% 3 min hold, Gradient TFA 0.4-0.2% 12 min
Flow Rate 1.0 ml/min
Detection UV, 230 nm
 

Description

Class of Compounds Drug,  Hydrophilic, Ionizable, Supplements
Analyzing Compounds T3, T4, 3,5-Diiodo-L-thyronine (T2), 3,5-Diiodo-L-tyrosine (DIT), and 3-Iodo-L-tyrosine (MIT)
 

Application Analytes:

3,5-Diiodo-L-thyronine
3,5-Diiodo-L-tyrosine dihydrate
3-Iodo-L-tyrosine
Iodine
Levothyroxine
Methimazole