1,2,4-Benzenetricarboxylic acid
- CAS No.
- 528-44-9
- Chemical Name:
- 1,2,4-Benzenetricarboxylic acid
- Synonyms
- TRIMELLITIC ACID;BENZENE-1,2,4-TRICARBOXYLIC ACID;rimelliticaci;TriMellitic aci;Trimellitic Acid >4-carboxyphthalicacid;1,2,4-Tricarboxybenzene;BENZENETRICARBOXYLICACID;Benzol-1,2,4-tricarbonsure;1,3,4-benzenetricarboxylicacid
- CBNumber:
- CB2146335
- Molecular Formula:
- C9H6O6
- Molecular Weight:
- 210.14
- MDL Number:
- MFCD00002470
- MOL File:
- 528-44-9.mol
- MSDS File:
- SDS
| Product description | Number | Pack Size | Price |
| 1,2,4-Benzenetricarboxylic acid ≥99% | B4589 | 5g | $51.7 |
| 1,2,4-Benzenetricarboxylic acid ≥99% | B4589 | 100g | $206 |
| Trimellitic Acid >98.0%(HPLC)(T) | B0042 | 25g | $44 |
| Trimellitic Acid >98.0%(HPLC)(T) | B0042 | 100g | $133 |
| Trimellitic Acid >98.0%(HPLC)(T) | B0042 | 500g | $396 |
| More product size | |||
| Melting point | 229-231 °C (dec.) (lit.) |
|---|---|
| Boiling point | 309.65°C (rough estimate) |
| Density | 1.4844 (rough estimate) |
| refractive index | 1.6630 (estimate) |
| storage temp. | Sealed in dry,Room Temperature |
| solubility | 2.1g/l |
| form | Crystalline Powder |
| pka | pK1: 2.52;pK2: 3.84;pK3: 5.20 (25°C) |
| color | White |
| Water Solubility | 2.1 G/100 ML (25 ºC) |
| Merck | 14,9702 |
| BRN | 2214815 |
| InChI | 1S/C9H6O6/c10-7(11)4-1-2-5(8(12)13)6(3-4)9(14)15/h1-3H,(H,10,11)(H,12,13)(H,14,15) |
| InChIKey | ARCGXLSVLAOJQL-UHFFFAOYSA-N |
| SMILES | OC(C1=C(C(O)=O)C=C(C(O)=O)C=C1)=O |
| LogP | 1.240 (est) |
| Indirect Additives used in Food Contact Substances | TRIMELLITIC ACID |
| CAS DataBase Reference | 528-44-9(CAS DataBase Reference) |
| EWG's Food Scores | 1 |
| FDA UNII | 7NVY29MQ5F |
| NIST Chemistry Reference | 1,2,4-Benzenetricarboxylic acid(528-44-9) |
| EPA Substance Registry System | 1,2,4-Benzenetricarboxylic acid (528-44-9) |
| UNSPSC Code | 12352100 |
| NACRES | NA.22 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) | ![]() GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H315-H319-H335 | |||||||||
| Precautionary statements | P261-P264-P271-P280-P302+P352-P305+P351+P338 | |||||||||
| target organs | Respiratory system | |||||||||
| PPE | dust mask type N95 (US), Eyeshields, Gloves | |||||||||
| Hazard Codes | Xi | |||||||||
| Risk Statements | 36/37/38 | |||||||||
| Safety Statements | 26-36-37/39 | |||||||||
| WGK Germany | 2 | |||||||||
| RTECS | DC1980000 | |||||||||
| Hazard Note | Irritant | |||||||||
| TSCA | TSCA listed | |||||||||
| HS Code | 29173990 | |||||||||
| Storage Class | 11 - Combustible Solids | |||||||||
| Hazard Classifications | Eye Irrit. 2 Skin Irrit. 2 STOT SE 3 |
|||||||||
| NFPA 704 |
|
1,2,4-Benzenetricarboxylic acid price More Price(37)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | B4589 | 1,2,4-Benzenetricarboxylic acid ≥99% | 528-44-9 | 5g | $51.7 | 2025-07-31 | Buy |
| Sigma-Aldrich | B4589 | 1,2,4-Benzenetricarboxylic acid ≥99% | 528-44-9 | 100g | $206 | 2025-07-31 | Buy |
| TCI Chemical | B0042 | Trimellitic Acid >98.0%(HPLC)(T) | 528-44-9 | 25g | $44 | 2025-07-31 | Buy |
| TCI Chemical | B0042 | Trimellitic Acid >98.0%(HPLC)(T) | 528-44-9 | 100g | $133 | 2025-07-31 | Buy |
| TCI Chemical | B0042 | Trimellitic Acid >98.0%(HPLC)(T) | 528-44-9 | 500g | $396 | 2025-07-31 | Buy |
1,2,4-Benzenetricarboxylic acid Chemical Properties,Uses,Production
Chemical Properties
Colorless crystals.Partially soluble in DMF and alcohol; insoluble in benzene and carbon disulfide; slightly soluble in water.
Uses
1,2,4-Benzenetricarboxylic acid (trimellitic acid) is generally used as carboxylate ligand in the synthesis of a wide range of metal-organic frameworks (MOFs). It can also be used to synthesize Ln3+ encapsulated nanocrystals which exhibit white-light luminescence.
Uses
Intermediate in the preparation of resins, plasticizers, dyes, inks, adhesives.
Definition
ChEBI: Benzene substituted at the 1,2, and 4 positions by carboxy groups.
Purification Methods
Crystallise the acid from acetic acid or aqueous EtOH. [Beilstein 9 IV 3746.]
1,2,4-Benzenetricarboxylic acid Preparation Products And Raw materials
Raw materials
1of3
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Hebei Chuanghai Biotechnology Co., Ltd | +8615350571055 | Sibel@chuanghaibio.com | China | 8753 | 58 |
| Capot Chemical Co.,Ltd. | +86-(0)57185586718; +8613336195806 | sales@capot.com | China | 29735 | 60 |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | info@tianfuchem.com | China | 21599 | 55 |
| career henan chemical co | +86-0371-86658258 +8613203830695 | sales@coreychem.com | China | 29833 | 58 |
| Shenzhen Nexconn Pharmatechs Ltd | +86-755-89396905 +86-15013857715 | admin@nexconn.com | China | 10405 | 58 |
| CONIER CHEM AND PHARMA LIMITED | +8618523575427 | sales@conier.com | China | 49977 | 58 |
| Shaanxi Dideu Medichem Co. Ltd | +86-29-87569266 +86-17392581500 | 1015@dideu.com | China | 3987 | 58 |
| Richest Group Ltd | 18017061086 | oled@richest-group.com | CHINA | 5600 | 58 |
| Hefei TNJ Chemical Industry Co.,Ltd. | +86-0551-65418671 +8618949823763 | sales@tnjchem.com | China | 34563 | 58 |
| ANHUI WITOP BIOTECH CO., LTD | +8615255079626 | eric@witopchemical.com | China | 23541 | 58 |
View Lastest Price from 1,2,4-Benzenetricarboxylic acid manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
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2026-01-05 | 1,2,4-Benzenetricarboxylic acid
528-44-9
|
US $0.00-0.00 / KG | 1KG | 99% | 20 mt | Hebei Chuanghai Biotechnology Co., Ltd | |
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2021-07-13 | 1,2,4-Benzenetricarboxylic acid
528-44-9
|
US $15.00-10.00 / KG | 1KG | 99%+ HPLC | Monthly supply of 1 ton | Zhuozhou Wenxi import and Export Co., Ltd | |
![]() |
2021-07-10 | 1,2,4-Benzenetricarboxylic acid
528-44-9
|
US $15.00-10.00 / KG | 1KG | 99%+ HPLC | Monthly supply of 1 ton | Zhuozhou Wenxi import and Export Co., Ltd |
-

- 1,2,4-Benzenetricarboxylic acid
528-44-9
- US $0.00-0.00 / KG
- 99%
- Hebei Chuanghai Biotechnology Co., Ltd
-

- 1,2,4-Benzenetricarboxylic acid
528-44-9
- US $15.00-10.00 / KG
- 99%+ HPLC
- Zhuozhou Wenxi import and Export Co., Ltd
-

- 1,2,4-Benzenetricarboxylic acid
528-44-9
- US $15.00-10.00 / KG
- 99%+ HPLC
- Zhuozhou Wenxi import and Export Co., Ltd









