CHEMICAL AND PHYSICAL PROPERTIES
| Physical Description | Ponceau 3r appears as dark red crystals or red powder. (NTP, 1992) |
|---|---|
| Color/Form | DARK RED POWDER |
| Melting Point | greater than 572 °F (NTP, 1992) |
| Solubility | 50 to 100 mg/mL at 66 °F (NTP, 1992) |
| Other Experimental Properties | ADDN OF HCL TO ITS AQ SOLN DOES NOT CHANGE COLOR, BUT NAOH PRODUCES YELLOW PPT; IT DISSOLVES IN CONCN H2SO4 TO CHERRY-RED SOLN WHICH DOES NOT CHANGE COLOR ON DILUTION |
| Chemical Classes | Dyes -> Azo Dyes |
SAFETY INFORMATION
| Signal word | Warning |
|---|---|
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H302:Acute toxicity,oral H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P280:Wear protective gloves/protective clothing/eye protection/face protection. P301+P312:IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. P302+P352:IF ON SKIN: wash with plenty of soap and water. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
COMPUTED DESCRIPTORS
| Molecular Weight | 494.5 g/mol |
|---|---|
| Hydrogen Bond Donor Count | 1 |
| Hydrogen Bond Acceptor Count | 9 |
| Rotatable Bond Count | 2 |
| Exact Mass | 494.01943176 g/mol |
| Monoisotopic Mass | 494.01943176 g/mol |
| Topological Polar Surface Area | 176 Ų |
| Heavy Atom Count | 32 |
| Formal Charge | 0 |
| Complexity | 823 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| Covalently-Bonded Unit Count | 3 |
| Compound Is Canonicalized | Yes |
PRODUCT INTRODUCTION
description
Ponceau 3r appears as dark red crystals or red powder. (NTP, 1992)