Basic red 2

Structural formula

• Numbering system
• Physical property data
• Toxicological data
• Ecological data
• Molecular structure data
• Computing chemical data
• More
  • Properties and Stability
  • Storage method
  • Synthesis method
  • Purpose

Numbering system

CAS number:477-73-6

MDL number:MFCD00011759

EINECS number:207-518-8

RTECS number:SG1623000

BRN number:3924099

PubChem ID:None

Physical property data

1. Properties: reddish brown powder.

2. Density (g/m³, 25/4℃): 1

3. Relative steam density (g/cm³ , air = 1): not determined

4. Melting point (ºC): not determined

5. Boiling point (ºC, normal pressure): not determined

6. Boiling point (ºC, 5.2kPa): Undetermined

7. Refractive index: 1.339

8. Flash point (ºC): 46

9. Specific optical rotation (º): Undetermined

10. Autoignition point or ignition temperature (ºC): Undetermined

11. Vapor pressure (kPa, 25ºC) : Undetermined

12. Saturated vapor pressure (kPa, 60ºC): Undetermined

13. Heat of combustion (KJ/mol): Undetermined

14 . Critical temperature (ºC): Undetermined

15. Critical pressure (KPa): Undetermined

16. Log value of oil-water (octanol/water) partition coefficient: Undetermined

17. Explosion upper limit (%, V/V): Undetermined

18. Explosion lower limit (%, V/V): Undetermined

19 . Solubility: It turns red when dissolved in water, and turns yellow fluorescent red when dissolved in ethanol. It appears green in concentrated sulfuric acid and red after dilution. Add sodium hydroxide to the aqueous solution to form a brown-red precipitate, which turns into blue-purple when exposed to concentrated sulfuric acid.

Toxicological data

1. Acute toxicity: Intravenous LD50 in mice: 2874umg/kg, behavior – convulsions or epilepsy, affecting the lungs, chest or irritating the lungs, chest or causing other respiratory changes;

Mouse Oral LDLo: 1600mg/kg, no details except lethal dose;

Mouse intravenous LD50: 24020ug/kg, behavior – convulsions or epilepsy, affecting the lungs, chest or irritating the lungs, chest Or cause other respiratory changes;

Rabbit intravenous LD50: 26940ug/kg, behavior – convulsion or epilepsy, affecting the lungs, chest or irritating the lungs, chest or causing other respiratory changes;

2. Mutagenicity data: Microbial organism TEST system mutation: Bacteria – Salmonella typhimurium: 16ug/plate

DNA repairTEST system: cells�-E. coli: 4 ug/well;

DNA repairTEST system: Bacteria-Bacillus subtilis: 2 mg/disc.

Ecological data

This substance may be harmful to the environment, and special attention should be paid to water bodies.

Molecular structure data

None yet

Compute chemical data

1. Reference value for hydrophobic parameter calculation (XlogP): None

2. Number of hydrogen bond donors: 2

3. Number of hydrogen bond acceptors: 4

4. Number of rotatable chemical bonds: 1

5. Number of tautomers: 5

6. Topological molecule polar surface area 68.8

7. Number of heavy atoms: 25

8. Surface charge: 0

9. Complexity: 405

10. Number of isotope atoms: 0

11. Determine the number of atomic stereocenters: 0

12. Uncertain number of atomic stereocenters: 0

13. Determine the number of chemical bond stereocenters: 0

14. Number of uncertain chemical bond stereocenters: 0

15. Number of covalent bond units: 2

Properties and stability

Storage method

Seal and store in a ventilated, dry place to avoid contact with other oxides.

Synthesis method

Using 2,5-diaminotoluene, o-toluidine and aniline as raw materials, first oxidize equal moles of 2,5-diaminotoluene and o-toluidine, and then mix with aniline Condensation, through purification and crystallization, it is converted into chloride to obtain the finished product.

Purpose

Redox indicator. Biological staining. Acid-base indicator. Spot analysis for nitrite.