4-Nitrohippuric acid
- CAS NO.：2645-07-0
- Empirical Formula: C9H8N2O5
- Molecular Weight: 224.17
- MDL number: MFCD00007349
- EINECS: 220-156-5
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-09-12 18:54:56
What is 4-Nitrohippuric acid?
Chemical properties
YELLOW GRANULES
General Description
Yellow powder.
Air & Water Reactions
Slightly soluble in water.
Reactivity Profile
A nitrated amide and organic acid. Acts as a weak acid in aqueous solution. Organic amides/imides react with azo and diazo compounds to generate toxic gases. Flammable gases are formed by the reaction of organic amides/imides with strong reducing agents. Amides are very weak bases (weaker than water). Imides are less basic yet and in fact react with strong bases to form salts. That is, they can react as acids. Mixing amides with dehydrating agents such as P2O5 or SOCl2 generates the corresponding nitrile. The combustion of these compounds generates mixed oxides of nitrogen (NOx).
Fire Hazard
Flash point data for 4-NITROHIPPURIC ACID are not available. 4-NITROHIPPURIC ACID is probably combustible.
Properties of 4-Nitrohippuric acid
| Melting point: | 131-133 °C(lit.) |
| Boiling point: | 365.56°C (rough estimate) |
| Density | 1.4656 (rough estimate) |
| refractive index | 1.5570 (estimate) |
| pka | 3.31±0.10(Predicted) |
| form | Solid |
| color | White to off-white |
| CAS DataBase Reference | 2645-07-0(CAS DataBase Reference) |
| EPA Substance Registry System | Glycine, N-(4-nitrobenzoyl)- (2645-07-0) |
Safety information for 4-Nitrohippuric acid
| 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 for 4-Nitrohippuric acid
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![ETHYL 3-[(4-NITROBENZOYL)AMINO]-2-OXO-6-PHENYL-2H-PYRAN-5-CARBOXYLATE](https://img.chemicalbook.in/StructureFile/ChemBookStructure2/GIF/CB7151055.gif)
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