2,3,5-Triiodobenzoic acid Chemical Properties

Melting point:

220-222 °C (lit.)

Boiling point:

456.7±45.0 °C(Predicted)

Density 

2.7985 (estimate)

storage temp. 

-20°C

solubility 

methanol: soluble5%, hazy, orange to very deep orange (light)

pka

2.16±0.10(Predicted)

form 

Solid

color 

Light brown

Water Solubility 

Insoluble in water.

Sensitive 

Light Sensitive

BRN 

1955088

InChI

InChI=1S/C7H3I3O2/c8-3-1-4(7(11)12)6(10)5(9)2-3/h1-2H,(H,11,12)

InChIKey

ZMZGFLUUZLELNE-UHFFFAOYSA-N

SMILES

C(O)(=O)C1=CC(I)=CC(I)=C1I

CAS DataBase Reference

88-82-4(CAS DataBase Reference)

NIST Chemistry Reference

2,3,5-Triiodobenzoic acid(88-82-4)

EPA Substance Registry System

2,3,5-Triiodobenzoic acid (88-82-4)

Safety Information

Hazard Codes 

Xn

Risk Statements 

22

Safety Statements 

22-26-36-24/25

WGK Germany 

3

RTECS 

DH9275000

TSCA 

Yes

HS Code 

29163900

Hazardous Substances Data

88-82-4(Hazardous Substances Data)

MSDS

• Language:English Provider:TIBA
• Language:English Provider:SigmaAldrich
• Language:English Provider:ACROS
• Language:English Provider:ALFA

2,3,5-Triiodobenzoic acid Usage And Synthesis

Chemical Properties

beige powder

Uses

2,3,5-Triiodobenzoic Acid is a polar auxin transport inhibitor that inhibits and promotes endoreduplication in hypocotyls and cotyledons.

Definition

ChEBI: A member of the class of benzoic acids that is benzoic acid in which the hydrogens at positions 2, 3 and 5 are replaced by iodine atoms. It is an auxin polar transport inhibitor.

Application

The 2,3,5-triiodobenzoic acid (TIBA) is a contrast agent used to improve the visualization of pathological tissues using X-ray techniques. 2, 3, 5-Triiodobenzoic Acid (syn: TIBA) is used as a plant growth regulator, defoliant, and agricultural herbicide. Several investigators have shown TIBA to be successful in causing the retention of buds, blooms, and pods of soybeans. Virtually no results have been reported on using TIBA to retain the 30 to 40% flower shed that occurs with cotton[1-2].

Biochem/physiol Actions

2,3,5-Triiodobenzoic acid (TIBA) inhibits the translocation of indole-3-acetic acid transport.TIBA inhibits the colonization of the main root cortex by Laccaria bicolor S238 N and the formation of the Hartig net.

Toxicology

2,3,5-Triiodobenzoic acid induces physiological complications like increase in oxygen reactive species (ROS), and consequently, contrast-induced nephropathies[1].

References

[1] Jéssica Sodré Silva de Abreu, Janaína Fernandes. "The contrast agent 2,3,5-triiodobenzoic acid (TIBA) induces cell death in tumor cells through the generation of reactive oxygen species." Molecular Biology Reports 48.6 (2021): 5199–5207.
[2] Freytag, et al. "Effect of Multiple Applications of 2,3,5-Triiodobenzoic Acid (TIBA) on Yields of Stormproof and Nonstormproof Cotton." Agronomy Journal 65.4(1973):610-610.

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