3,4-Dimethylbenzoic acid
Synonym(s):asym.-o-Xylylic acid
- CAS NO.：619-04-5
- Empirical Formula: C9H10O2
- Molecular Weight: 150.17
- MDL number: MFCD00002524
- EINECS: 210-576-7
- Update Date: 2026-01-16 16:10:54
What is 3,4-Dimethylbenzoic acid?
Chemical properties
white to beige crystalline powder
Definition
ChEBI: A dimethylbenzoic acid in which the two methyl groups are located at positions 3 and 4.
Purification Methods
Crystallise it from EtOH or H2O (m 168-168.5o), and sublime it in vacuo. The phenyl ester has m 68o (from EtOH or pet ether) and b 155-157o/2mm. [Beilstein 9 II 353, 9 III 2441, 9 IV 1803.]
Properties of 3,4-Dimethylbenzoic acid
| Melting point: | 163-165 °C (lit.) |
| Boiling point: | 271.51°C (estimate) |
| Density | 1.0937 (estimate) |
| refractive index | 1.5188 (estimate) |
| storage temp. | Sealed in dry,Room Temperature |
| form | Crystalline Powder |
| pka | 4.44±0.10(Predicted) |
| color | White to beige |
| Water Solubility | 129.2mg/L(temperature not stated) |
| BRN | 907267 |
| CAS DataBase Reference | 619-04-5(CAS DataBase Reference) |
| NIST Chemistry Reference | Benzoic acid, 3,4-dimethyl-(619-04-5) |
| EPA Substance Registry System | 3,4-Dimethylbenzoic acid (619-04-5) |
Safety information for 3,4-Dimethylbenzoic acid
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P280:Wear protective gloves/protective clothing/eye protection/face protection. 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 3,4-Dimethylbenzoic acid
3,4-Dimethylbenzoic acid manufacturer
New Products
Levothyroxine Impurity-F Montelukast EP Impurity-D/Montelukast USP Related Compound C Atorvastatin FXA Impurity/Atorvastatin Cyclic 6-Hydroxy Impurity Sodium Salt Isosulfan blue Keto N-Oxide Impurity Ivermectin Impurity F N-Nitroso des Methyl Tramadol/N-Nitroso-N-Desmethyl-Tramadol DL-beta-(3-Bromophenyl)alanine Tetrabutylammonium perchlorate N,O-Dimethylhydroxylamine hydrochloride (RS)-beta-Amino-beta-(4-bromophenyl)propionic acid 2-Amino-5-bromo-4-(trifluoromethyl)pyridine（RM for Indian lab) N,N CARBONYL DIIMIDAZOLE (R)-BoroLeu-(+)-Pinanediol-CF3COOH 1,4-bis(methylsulfonyl)butane 4-(5-amino-1-methyl-1h-benzoimidazol-2-yl)-butyric acid isopropyl ester. 5-Methyl-1,3-benzenediacetonitrile 4-Fluorothiophenol 1-methyl amino-2,4-dinitro benzene CSA (DL-10-Camphorsulfonic Acid) 2-Hydroxy-4-methylnicotinic acid 3-iodo-1H-pyrazolo[3,4-d]pyrimidin-4-amine (2S)-1-((2S,3S)-3-(2-methylbutyl)-4-oxooxetan-2-yl)pentadecan-2-yl formylleucinate 1-(3,5-dichlorophenyl)-2,2,2-trifluoroethane-1-sulfonyl chloride S-(1-(3,5-dichlorophenyl)-2,2,2-trifluoroethyl) ethanethioateRelated products of tetrahydrofuran
You may like
-
619-04-5 98%View Details
619-04-5 -
3,4-Dimethyl benzoic acid 98%View Details
619-04-5 -
619-04-5 99%View Details
619-04-5 -
3,4-Dimethylbenzoic Acid CAS 619-04-5View Details
619-04-5 -
3,4-Di Methyl Benzoic AcidView Details
619-04-5 -
3,4-Dimethylbenzoic acid 98%View Details
619-04-5 -
H-D-TRP(FOR)-OH HCL 98+View Details
367453-01-8 -
1428243-26-8 98+View Details
1428243-26-8
Statement: All products displayed on this website are only used for non medical purposes such as industrial applications or scientific research, and cannot be used for clinical diagnosis or treatment of humans or animals. They are not medicinal or edible.