3-Methyl-4-nitrobenzoic acid
- Product Name
- 3-Methyl-4-nitrobenzoic acid
- CAS No.
- 3113-71-1
- Chemical Name
- 3-Methyl-4-nitrobenzoic acid
- Synonyms
- 4-NITRO-M-TOLUIC ACID;4-Nitro-m-toluylsure;Methyl-4-nitrobenzoic;4-NITRO-3-METHYLBENZOIC ACID;4,3-NMBA;Fluralaner-027;RARECHEM AL BO 0346;-4-nitrobenzoic Acid;Fluralaner Impurity 48;m-Toluic acid, 4-nitro-
- CBNumber
- CB2720513
- Molecular Formula
- C8H7NO4
- Formula Weight
- 181.15
- MOL File
- 3113-71-1.mol
3-Methyl-4-nitrobenzoic acid Property
- Melting point:
- 216-218 °C (lit.)
- Boiling point:
- 314.24°C (rough estimate)
- Density
- 1.4283 (rough estimate)
- refractive index
- 1.5468 (estimate)
- storage temp.
- Sealed in dry,Room Temperature
- solubility
- slightly sol. in Alcohol
- pka
- 3.49±0.10(Predicted)
- form
- Amorphous Powder
- color
- Yellow
- Water Solubility
- <0.1 g/100 mL at 22 ºC
- BRN
- 1959154
- InChIKey
- XDTTUTIFWDAMIX-UHFFFAOYSA-N
- CAS DataBase Reference
- 3113-71-1(CAS DataBase Reference)
- NIST Chemistry Reference
- 3-Methyl-4-nitrobenzoic acid(3113-71-1)
- EPA Substance Registry System
- 3-Methyl-4-nitrobenzoic acid (3113-71-1)
Safety
- Hazard Codes
- Xi,Xn
- Risk Statements
- 36/37/38-20/21/22
- Safety Statements
- 26-36-36/37/39-22
- WGK Germany
- 3
- Hazard Note
- Irritant
- TSCA
- Yes
- HS Code
- 29163900
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.
P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P405Store locked up.
N-Bromosuccinimide Price
- Product number
- M60600
- Product name
- 3-Methyl-4-nitrobenzoic acid
- Purity
- 99%
- Packaging
- 25g
- Price
- $39.5
- Updated
- 2023/06/20
- Product number
- M0565
- Product name
- 3-Methyl-4-nitrobenzoic Acid
- Purity
- >98.0%(T)(HPLC)
- Packaging
- 25g
- Price
- $32
- Updated
- 2024/03/01
- Product number
- M0565
- Product name
- 3-Methyl-4-nitrobenzoic Acid
- Purity
- >98.0%(T)(HPLC)
- Packaging
- 500g
- Price
- $374
- Updated
- 2024/03/01
- Product number
- A15523
- Product name
- 3-Methyl-4-nitrobenzoic acid, 99%
- Packaging
- 100g
- Price
- $40.65
- Updated
- 2024/03/01
- Product number
- A15523
- Product name
- 3-Methyl-4-nitrobenzoic acid, 99%
- Packaging
- 500g
- Price
- $158.65
- Updated
- 2024/03/01
3-Methyl-4-nitrobenzoic acid Chemical Properties,Usage,Production
Description
In organic synthesis, 3-Methyl-4-nitrobenzoic acid (abbreviated as MNBA) is the fine chemical product that adds value is higher; many critical organic products are obtained for raw material can synthesize further with it, as 4-chloro-quinazoline-6-ethyl formate, 2-n-propyl-4-methyl-6-carboxy benzimidazole, 4-methyl-2-ethyl-1H-benzoglyoxaline-6-methyl-formiate, 3,4-dihydro-4-quinazoline is with-6-formic acid, 4-aminophenyl-1,3-dioctyl phthalate, 4-Amino-3-methylbenzoic acid methyl esters, 4-nitrophenyl-1,3-dioctyl phthalate etc. In medicine, it is an essential intermediate in the synthesis of telmisartan (via esterification, reduction, butyrylation, nitration, reduction and cyclization), which is used to treat essential hypertension. Telmisartan is a drug belonging to the group of antagonists of angiotensin II receptors. The active ingredient telmisartan counteracts the effect of angiotensin II, allowing the arteries to relax, thereby reducing blood pressure. As a precursor, pharmaceutical researchers have also synthesized anti-cancer substances and AIDS drugs with MNBA[1].
Chemical Properties
white to light yellow crystal powder
Uses
3-Methyl-4-nitrobenzoic Acid is used as a reagent in the synthesis of influenza neuraminidase inhibitors with pyrrolidinobenzoic acid scaffold containing lipophilic side chains.
Preparation
3-Methyl-4-nitrobenzoic acid was synthesized via oxidation of 2,4-(dimethylnitrobenzene) with mole-(cular) oxygen catalyzed by cobalt acetate in acetic acid in the presence of an initiator.It was found that the yield of 3-methyl-4-nitrobenzoic acid increased remarkably with the addition of sodium bromide as a co-(catalyst).The reaction was carried out at 130 ℃ for 8 h at 0.8 MPa of oxygen in the presence of 0.017 mol of cobalt acetate,(0.017 mol) of sodium bromide,and 0.30 mol of 2-butanone with 1.00 mole of 2,4-dimethylnitrobenzene.(Under) these conditions 99% of the reactant converted with a selectivity of 52% to 3-methyl-4-(nitrobenzoic) acid,and the yield of 3methyl-4-(nitrobenzoic) acid was 51%.The reaction mechanism and the function of(sodium) bromide were discussed.According to the fact that the reaction could not proceed without the presence of an initiator,it was proposed that the reaction took place via a free radical mechanism,and(sodium) bromide reacted with Co(Ⅲ) to generate bromine radicals,which promoted the formation of benzyl radicals.
Synthesis of 3-Methyl-4-nitrobenzoic Acid via Catalytic Oxidation with Molecular Oxygen
Method for preparing 3-methyl-4-nitrobenzoic acid by oxidizing with nitric acid
General Description
Needles or off white powder.
Air & Water Reactions
Insoluble in water.
Reactivity Profile
3-Methyl-4-nitrobenzoic acid is a nitrated carboxylic acid. Carboxylic acids donate hydrogen ions if a base is present to accept them. They react in this way with all bases, both organic (for example, the amines) and inorganic. Their reactions with bases, called "neutralizations", are accompanied by the evolution of substantial amounts of heat. Neutralization between an acid and a base produces water plus a salt. Carboxylic acids with six or fewer carbon atoms are freely or moderately soluble in water; those with more than six carbons are slightly soluble in water. Soluble carboxylic acid dissociate to an extent in water to yield hydrogen ions. The pH of solutions of carboxylic acids is therefore less than 7.0. Many insoluble carboxylic acids react rapidly with aqueous solutions containing a chemical base and dissolve as the neutralization generates a soluble salt. Carboxylic acids in aqueous solution and liquid or molten carboxylic acids can react with active metals to form gaseous hydrogen and a metal salt. Such reactions occur in principle for solid carboxylic acids as well, but are slow if the solid acid remains dry.
Fire Hazard
Flash point data for 3-Methyl-4-nitrobenzoic acid are not available; however, 3-Methyl-4-nitrobenzoic acid is probably combustible.
References
[1] Yüfang Wu. “Solubility of 3-methyl-4-nitrobenzoic acid in binary solvent mixtures of {(1,4-dioxane, N-methyl-2-pyrrolidone, N,N-dimethylformamide) methanol} from T = (283.15 to 318.15) K: Experimental determination and thermodynamic modelling.” Journal of Chemical Thermodynamics 105 (2017): Pages 165-172.
3-Methyl-4-nitrobenzoic acid Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from 3-Methyl-4-nitrobenzoic acid manufacturers
- Product
- 3-Methyl-4-nitrobenzoic acid 3113-71-1
- Price
- US $20.90/Kg/Drum
- Min. Order
- 25Kg/Drum
- Purity
- 99.00%HPLC
- Supply Ability
- 30tons/month
- Release date
- 2021-09-17
- Product
- 3-Methyl-4-nitrobenzoic acid 3113-71-1
- Price
- US $0.00/Kg/Drum
- Min. Order
- 1KG
- Purity
- 98%min
- Supply Ability
- 10 tons
- Release date
- 2021-09-30
- Product
- 3-Methyl-4-nitrobenzoic acid 3113-71-1
- Price
- US $0.00/Kg/Bag
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- 1000mt/year
- Release date
- 2021-09-23