2-Aminoperimidine Hydrobromide Property

Melting point:

295-300 °C

solubility 

soluble in Methanol

form 

powder to crystal

color 

White to Light yellow to Dark green

BRN 

3570810

InChI

InChI=1S/C11H9N3.BrH/c12-11-13-8-5-1-3-7-4-2-6-9(14-11)10(7)8;/h1-6H,(H3,12,13,14);1H

InChIKey

HFZUTZWRTHBWPV-UHFFFAOYSA-N

SMILES

C12C3C=CC=C1N=C(N)NC=2C=CC=3.Br

CAS DataBase Reference

40835-96-9(CAS DataBase Reference)

Safety

WGK Germany 

3

F 

8-10-23

HS Code 

2925.29.9000

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

2-Aminoperimidine Hydrobromide Chemical Properties,Usage,Production

Application

Formation of an ion associated with the excess of 2-aminoperimidine hydrobromide (Ap) and sulfate ion in the sample solution and detection of the concentration of the remaining Ap ion by the optode. The developed optode method could be applied to determine sulfate ions in environmental water samples[1].

Purification Methods

Purify the hydrobromide by boiling a saturated aqueous solution with charcoal, filtering and leaving the salt to crystallise. Store this dihydrate salt in a cool, stoppered flask in the dark place. The anhydrous salt is obtained by heating at 80o/4hours, and it is hygroscopic. The solubilities of the hydrobromide at 26o are 2.4% in EtOH, 0.6% in H2O, 0.3% in Et2O, 0.1% in Me2CO and 0.003% in *C6H6. [Dasgupta et al. Anal Chim Acta 94 205 1977, Dasgupta & West Microchim Acta 2 505 1978, Dasgupta et al. Anal Chem 50 1793 1978, Beilstein 24 H 193, 25 III/IV 2677.]

References

[1] Takashi Masadome, Hidekazu Ishikawa. “Determination of Sulfate Ion with 2-Aminoperimidine Hydrobromide Using an Optode Based on Tetrabromophenolphthalein Ethyl Ester Membrane.” Analytical Sciences 34 3 (2018): 383–385.