3,4-Dimethylbenzoic acid
- CAS No.
- 619-04-5
- Chemical Name:
- 3,4-Dimethylbenzoic acid
- Synonyms
- Xylylic acid;3,4-dimethylbenzoate;50G/200G/1KG;AKOS BBS-00007820;Paraxy lylic acid;ASYM-O-XYLYLIC ACID;RARECHEM AL BO 0330;unsyM-o-Xylylic acid;3,4-dimethyl-benzoicaci;3,4-DIMETHYLBENZOICAICD
- CBNumber:
- CB2766496
- Molecular Formula:
- C9H10O2
- Molecular Weight:
- 150.17
- MDL Number:
- MFCD00002524
- MOL File:
- 619-04-5.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| 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 |
| pka | 4.44±0.10(Predicted) |
| form | Crystalline Powder |
| color | White to beige |
| Water Solubility | 129.2mg/L(temperature not stated) |
| BRN | 907267 |
| InChI | InChI=1S/C9H10O2/c1-6-3-4-8(9(10)11)5-7(6)2/h3-5H,1-2H3,(H,10,11) |
| InChIKey | OPVAJFQBSDUNQA-UHFFFAOYSA-N |
| SMILES | C(O)(=O)C1=CC=C(C)C(C)=C1 |
| CAS DataBase Reference | 619-04-5(CAS DataBase Reference) |
| FDA UNII | Z2TCZ088AV |
| NIST Chemistry Reference | Benzoic acid, 3,4-dimethyl-(619-04-5) |
| EPA Substance Registry System | 3,4-Dimethylbenzoic acid (619-04-5) |
| UNSPSC Code | 12352100 |
| NACRES | NA.22 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H335-H315-H319 | |||||||||
| Precautionary statements | P280g-P305+P351+P338-P264-P280-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313 | |||||||||
| PPE | Eyeshields, Gloves, type N95 (US) | |||||||||
| Hazard Codes | Xi,Xn | |||||||||
| Risk Statements | 36/37/38-22 | |||||||||
| Safety Statements | 22-24/25-37/39-26 | |||||||||
| WGK Germany | 3 | |||||||||
| RTECS | DG8734020 | |||||||||
| TSCA | TSCA listed | |||||||||
| HS Code | 29163900 | |||||||||
| Storage Class | 13 - Non Combustible Solids | |||||||||
| NFPA 704 |
|
3,4-Dimethylbenzoic acid price More Price(94)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| TCI Chemical | D1439 | 3,4-Dimethylbenzoic Acid >99.0%(T) | 619-04-5 | 10g | $43 | 2026-04-30 | Buy |
| TCI Chemical | D1439 | 3,4-Dimethylbenzoic Acid >99.0%(T) | 619-04-5 | 25g | $72 | 2026-04-30 | Buy |
| Usbiological | 274262 | 3,4-Dimethylbenzoic acid Asreported | 619-04-5 | 50g | $376 | 2026-06-03 | Buy |
| Usbiological | 274262 | 3,4-Dimethylbenzoic acid Asreported | 619-04-5 | 100g | $573 | 2026-06-03 | Buy |
| Usbiological | 274262 | 3,4-Dimethylbenzoic acid Asreported | 619-04-5 | 250g | $804 | 2026-06-03 | Buy |
3,4-Dimethylbenzoic acid Chemical Properties,Uses,Production
Chemical Properties
white to beige crystalline powder
Uses
3,4-Dimethylbenzoic acid (3,4-DMBA) can be used as a toxicological marker. In a study on the inhalation exposure of rats to pseudocumene (1,2,4-trimethylbenzene), 3,4-DMBA was identified as one of three dimethylbenzoic acid isomers produced by the metabolism of pseudocumene. Following hydrolysis, it was quantitatively measured in the lungs, liver, kidneys and urine, accounting for 51–62 per cent of the total DMBA isomers in urine [1]. Furthermore, it can also serve as an intermediate in organic synthesis.
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.]
References
[1] Świercz, R., Wąsowicz, W., & Majcherek, W. (2005). Dimethylbenzoic Acid Isomers in Lung, Kidney, Liver and Urine of Rats after Single and Repeated Inhalation Exposure to Pseudocumene. Polish Journal of Environmental Studies, 14.
3,4-Dimethylbenzoic acid Preparation Products And Raw materials
Raw materials
1of2
Preparation Products
1of2
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Yuzhou Enthalpy Carbon Pharmaceutical Technology Co. LTD | 19963477321; 19963477321 | 2041275825@qq.com | China | 1541 | 58 |
| Heze Bona Medical Technology Co., LTD | 15865805009 | 15865805009@139.com | China | 2995 | 58 |
| Jiande Qianhe Welfare Chemical Plant | 13968134496 | qh@jdqianhe.com | China | 19 | 58 |
| J & K SCIENTIFIC LTD. | 18210857532 18210857532 | jkinfo@jkchemical.com | China | 96815 | 76 |
| 3B Pharmachem (Wuhan) International Co.,Ltd. | 18930552037 | 3bsc@sina.com | China | 15813 | 69 |
| Alfa Aesar | 400-6106006 | saleschina@alfa-asia.com | China | 30103 | 84 |
| TCI (Shanghai) Development Co., Ltd. | 021-67121386 | Sales-CN@TCIchemicals.com | China | 24512 | 81 |
| Energy Chemical | 400-0056266 | sales8178@energy-chemical.com | China | 44850 | 61 |
| Capot Chemical Co., Ltd | +86 (0) 571 85 58 67 18 | China | 18187 | 66 | |
| JinYan Chemicals(ShangHai) Co.,Ltd. | 13817811078 | sales@jingyan-chemical.com | China | 9963 | 60 |
View Lastest Price from 3,4-Dimethylbenzoic acid manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-06-30 | 3,4-Dimethylbenzoic acid
619-04-5
|
1kg | 99% | 10000KGS | Shaanxi Dideu New Materials Co. Ltd | ||
 |
2026-05-11 | 3,4-Dimethylbenzoic acid
619-04-5
|
$29.00 | 99.76% | 10g | TargetMol Chemicals Inc. | ||
 |
2022-02-21 | 3,4-Dimethylbenzoic acid
619-04-5
|
1KG | 99.0% | 100 tons | Honest Joy Holdings Limited |
-
- 3,4-Dimethylbenzoic acid
619-04-5
- $0.00
- 99%
- Shaanxi Dideu New Materials Co. Ltd
-
- 3,4-Dimethylbenzoic acid
619-04-5
- $29.00
- 99.76%
- TargetMol Chemicals Inc.
-
- 3,4-Dimethylbenzoic acid
619-04-5
- $0.00
- 99.0%
- Honest Joy Holdings Limited
