3-Nitrobenzoic acid
- CAS No.
- 121-92-6
- Chemical Name:
- 3-Nitrobenzoic acid
- Synonyms
- M-NITROBENZOIC ACID;3-nitrobenzoic;NITROBENZOIC(3-) ACID;Metanitrobenzoic acid;3-NITROPHENYL METHANOIC ACID;N-204;Nitrobenzene acid;Arylex Impurity 6;3-nitro-benzoicaci;m-nitro-benzoicaci
- CBNumber:
- CB1709821
- Molecular Formula:
- C7H5NO4
- Molecular Weight:
- 167.12
- MDL Number:
- MFCD00007251
- MOL File:
- 121-92-6.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Product description | Number | Pack Size | Price |
| 3-Nitrobenzoic acid ReagentPlus , 99% | 185329 | 5g | $42.3 |
| 3-Nitrobenzoic acid ReagentPlus , 99% | 185329 | 100g | $50.9 |
| 3-Nitrobenzoic acid for synthesis | 8.00645 | 250g | $36.2 |
| 3-Nitrobenzoic Acid >99.0%(GC)(T) | N0154 | 25g | $19 |
| 3-Nitrobenzoic Acid >99.0%(GC)(T) | N0154 | 500g | $69 |
| More product size | |||
| Melting point | 139-141 °C(lit.) |
|---|---|
| Boiling point | 295.67°C (rough estimate) |
| bulk density | 700kg/m3 |
| Density | 1,494 g/cm3 |
| vapor density | 5.76 (vs air) |
| vapor pressure | 0.005Pa at 25℃ |
| refractive index | 1.6280 (estimate) |
| Flash point | 190 °C |
| storage temp. | no restrictions. |
| solubility | water: soluble3g/L at 25°C |
| pka | 3.47(at 25℃) |
| form | Crystals or Powder |
| color | Slightly green to light yellow |
| PH | 3 (5g/l, H2O, 20℃)(aqueous suspension) |
| PH Range | 3 |
| Water Solubility | <0.01 g/100 mL at 18 ºC |
| Merck | 14,6588 |
| BRN | 908644 |
| Henry's Law Constant | 3.4×103 mol/(m3Pa) at 25℃, Abraham and Jr. (2019) |
| Stability | Stable. Combustible. Incompatible with strong oxidizing agents. |
| InChI | 1S/C7H5NO4/c9-7(10)5-2-1-3-6(4-5)8(11)12/h1-4H,(H,9,10) |
| InChIKey | AFPHTEQTJZKQAQ-UHFFFAOYSA-N |
| SMILES | OC(=O)c1cccc(c1)[N+]([O-])=O |
| LogP | 1.1 at 25℃ |
| CAS DataBase Reference | 121-92-6(CAS DataBase Reference) |
| EWG's Food Scores | 1 |
| FDA UNII | H318ZW7612 |
| NIST Chemistry Reference | Benzoic acid, 3-nitro-(121-92-6) |
| EPA Substance Registry System | m-Nitrobenzoic acid (121-92-6) |
| UNSPSC Code | 12352106 |
| NACRES | NA.22 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H319 | |||||||||
| Precautionary statements | P264-P280-P305+P351+P338-P337+P313 | |||||||||
| PPE | dust mask type N95 (US), Eyeshields, Gloves | |||||||||
| Hazard Codes | Xn,Xi | |||||||||
| Risk Statements | 22-36/37-33-36/37/38 | |||||||||
| Safety Statements | 26-24/25 | |||||||||
| WGK Germany | 3 | |||||||||
| RTECS | DH5000000 | |||||||||
| Autoignition Temperature | 490 °C | |||||||||
| Hazard Note | Irritant | |||||||||
| TSCA | TSCA listed | |||||||||
| HS Code | 29163900 | |||||||||
| Storage Class | 11 - Combustible Solids | |||||||||
| Hazard Classifications | Eye Irrit. 2 | |||||||||
| Hazardous Substances Data | 121-92-6(Hazardous Substances Data) | |||||||||
| NFPA 704 |
|
3-Nitrobenzoic acid price More Price(32)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 185329 | 3-Nitrobenzoic acid ReagentPlus , 99% | 121-92-6 | 5g | $42.3 | 2026-04-30 | Buy |
| Sigma-Aldrich | 185329 | 3-Nitrobenzoic acid ReagentPlus , 99% | 121-92-6 | 100g | $50.9 | 2026-04-30 | Buy |
| Sigma-Aldrich | 8.00645 | 3-Nitrobenzoic acid for synthesis | 121-92-6 | 250g | $36.2 | 2026-04-30 | Buy |
| TCI Chemical | N0154 | 3-Nitrobenzoic Acid >99.0%(GC)(T) | 121-92-6 | 25g | $19 | 2026-04-30 | Buy |
| TCI Chemical | N0154 | 3-Nitrobenzoic Acid >99.0%(GC)(T) | 121-92-6 | 500g | $69 | 2026-04-30 | Buy |
3-Nitrobenzoic acid Chemical Properties,Uses,Production
Chemical Properties
White or light yellow monoclinic leaf-like crystal. Soluble in acetone, chloroform, ethanol and ether, slightly soluble in benzene, water, carbon disulfide and petroleum ether, more soluble in hot water. It smells like almonds. 3-nitrobenzoic acid is quite a strong acid, it is soluble in a relatively weak base. It is about ten times more acidic than benzoic acid.The conjugate base of benzoic acid is stabilised by the presence of the electron withdrawing nitro group which explains its increased acidity in comparison to unsubstituted benzoic acid.
Uses
3-Nitrobenzoic acid was used to investigated the role of ozone as additional decomposition or finishing reagent in the degradation of o-, m- and p-nitobenzoic acids
Application
3-Nitrobenzoic acid is an intermediate of photosensitive materials, functional pigments and drugs. In the pharmaceutical industry, it is used to produce bile acid, acetic acid and so on.
m-nitrobenzoic acid is a reagent used in the coupling of allyl acetate to allylic, aliphatic and benzylic alcohols. It is also used as a chemoattractant against Pseudomonas strains.
Preparation
3-Nitrobenzoic acid is prepared by nitrating benzoic acid at low temperature. Approximately 20% of the 2-nitro isomer and 1.5% of the 4-nitro isomer are co-produced. The 3-nitrobenzoic acid can be purified by recrystallization of the sodium salt. The oxidation of 3-nitrobenzaldehyde, prepared by the controlled oxidation of benzaldehyde, gives a higher yield.
Synthesis Reference(s)
Organic Syntheses, Coll. Vol. 1, p. 391, 1941
The Journal of Organic Chemistry, 46, p. 3056, 1981 DOI: 10.1021/jo00328a013
General Description
Off white to yellowish-white crystals. Bitter taste. Melts in hot water.
Air & Water Reactions
Insoluble in water.
Reactivity Profile
3-Nitrobenzoic acid is incompatible with strong oxidizers. 3-Nitrobenzoic acid is also incompatible with strong bases. 3-Nitrobenzoic acid may react with cyanides.
Fire Hazard
Flash point data for 3-Nitrobenzoic acid are not available but 3-Nitrobenzoic acid is probably combustible.
Flammability and Explosibility
Non flammable
Purification Methods
Crystallise the acid from *benzene, H2O, EtOH (charcoal), glacial acetic acid or MeOH/H2O. Dry and store it in a vacuum desiccator. The amide has m 143o (from H2O or *C6H6). [Beilstein 9 III 1489, 9 IV 1055.]
3-Nitrobenzoic acid Preparation Products And Raw materials
Raw materials
Preparation Products
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| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Hebei Chuanghai Biotechnology Co., Ltd | +8615350571055 | Sibel@chuanghaibio.com | China | 8738 | 58 |
| Hebei Chuanghai Biotechnology Co,.LTD | +86-86-13131129325 +8613131129325 | sales1@chuanghaibio.com | China | 5235 | 58 |
| Henan Fengda Chemical Co., Ltd | +86-371-86557731 +86-13613820652 | info@fdachem.com | China | 20124 | 58 |
| Hebei Zhuanglai Chemical Trading Co.,Ltd | +8613343047651 | admin@zlchemi.com | China | 3692 | 58 |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | info@tianfuchem.com | China | 21590 | 55 |
| career henan chemical co | +86-0371-86658258 +8613203830695 | sales@coreychem.com | China | 29819 | 58 |
| Shenzhen Nexconn Pharmatechs Ltd | +86-755-89396905 +86-15013857715 | admin@nexconn.com | China | 10404 | 58 |
| Xiamen AmoyChem Co., Ltd | +86-86-5926051114 +8615060885618 | sales@amoychem.com | China | 6369 | 58 |
| Alchem Pharmtech,Inc. | 8485655694 | sales@alchempharmtech.com | United States | 63687 | 58 |
| CONIER CHEM AND PHARMA LIMITED | +8618523575427 | sales@conier.com | China | 49977 | 58 |
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View Lastest Price from 3-Nitrobenzoic acid manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-04-30 | 3-Nitrobenzoic acid
121-92-6
|
US $15.35 / Kg/Drum | 25Kg/Drum | 99.50%HPLC | 10tons/month | Asia Chem I and E (Jiangsu) Co Ltd | |
 |
2026-03-20 | 3-Nitrobenzoic acid
121-92-6
|
US $10.00 / KG | 1KG | 99% | 10 mt | Hebei Chuanghai Biotechnology Co., Ltd | |
 |
2025-09-25 | 3-Nitrobenzoic acid
121-92-6
|
US $100.00-1.00 / KG | 1KG | 99% | g-kg-tons, free sample is available | Henan Fengda Chemical Co., Ltd |
-
- 3-Nitrobenzoic acid
121-92-6
- US $15.35 / Kg/Drum
- 99.50%HPLC
- Asia Chem I and E (Jiangsu) Co Ltd
-
- 3-Nitrobenzoic acid
121-92-6
- US $10.00 / KG
- 99%
- Hebei Chuanghai Biotechnology Co., Ltd
-
- 3-Nitrobenzoic acid
121-92-6
- US $100.00-1.00 / KG
- 99%
- Henan Fengda Chemical Co., Ltd
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