ChemicalBook >> CAS DataBase List >>2,4,5-Trimethoxybenzoic acid

2,4,5-Trimethoxybenzoic acid

CAS No.
490-64-2
Chemical Name:
2,4,5-Trimethoxybenzoic acid
Synonyms
ASARONIC ACID;AKOS BBS-00003744;RARECHEM AL BO 0322;TriMethoxybenzoic aci;2,4,5-Trimethoxybenzoic;2,4,5-trimethoxybenzoate;2,4,5-Trimethoxybenzoesur;2,4,5-trimethoxy-benzoicaci;2,4,5-TRIMETHOXYBENZOIC ACID;Benzoic acid, 2,4,5-trimethoxy-
CBNumber:
CB3390777
Molecular Formula:
C10H12O5
Molecular Weight:
212.2
MDL Number:
MFCD00002435
MOL File:
490-64-2.mol
MSDS File:
SDS
Last updated:2026-05-28 06:22:02

2,4,5-Trimethoxybenzoic acid Properties

Melting point 143-145 °C (lit.)
Boiling point 300 °C
Density 1.3006 (rough estimate)
refractive index 1.5140 (estimate)
storage temp. Sealed in dry,Room Temperature
solubility Chloroform (Slightly)
form Solid
pka 4.24±0.10(Predicted)
color White to Off-White
Water Solubility SOLUBLE
λmax 226nm(EtOH)(lit.)
InChI InChI=1S/C10H12O5/c1-13-7-5-9(15-3)8(14-2)4-6(7)10(11)12/h4-5H,1-3H3,(H,11,12)
InChIKey KVZUCOGWKYOPID-UHFFFAOYSA-N
SMILES C(O)(=O)C1=CC(OC)=C(OC)C=C1OC
CAS DataBase Reference 490-64-2(CAS DataBase Reference)
FDA UNII 9WDU77RBH9
EPA Substance Registry System Benzoic acid, 2,4,5-trimethoxy- (490-64-2)
UNSPSC Code 12352100
NACRES NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H315-H319-H335
Precautionary statements  P261-P280a-P304+P340-P305+P351+P338-P405-P501a
PPE Eyeshields, Gloves, type N95 (US)
Risk Statements  36/37/38
Safety Statements  24/25
WGK Germany  3
TSCA  TSCA listed
HS Code  29189900
Storage Class 11 - Combustible Solids
NFPA 704
1
2 0

2,4,5-Trimethoxybenzoic acid price More Price(41)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 138894 2,4,5-Trimethoxybenzoic acid 99% 490-64-2 10g $28.9 2023-06-20 Buy
TCI Chemical T2627 2,4,5-Trimethoxybenzoic Acid >98.0%(GC)(T) 490-64-2 5g $23 2026-04-30 Buy
TCI Chemical T2627 2,4,5-Trimethoxybenzoic Acid >98.0%(GC)(T) 490-64-2 25g $54 2026-04-30 Buy
Usbiological 290848 2,4,5-Trimethoxybenzoic acid Asreported 490-64-2 50g $239 2026-06-03 Buy
Usbiological 290848 2,4,5-Trimethoxybenzoic acid Asreported 490-64-2 100g $355 2026-06-03 Buy
Product number Packaging Price Buy
138894 10g $28.9 Buy
T2627 5g $23 Buy
T2627 25g $54 Buy
290848 50g $239 Buy
290848 100g $355 Buy

2,4,5-Trimethoxybenzoic acid Chemical Properties,Uses,Production

Preparation

The preparation steps of the pharmaceutical intermediate 2,4,5-trimethoxybenzoic acid are as follows: Step 1: Add 4.42g of 1,2,4-trimethoxybenzene and 10ml of DMF to a reaction flask. Heat in an ice-water bath at 10℃. Add a DMF solution containing 1.47g of phosphorus oxychloride dropwise. After the addition is complete, heat the mixture to 60℃ and stir for 1 hour. Step 2: Control the reaction via TLC. If the reaction is complete, pour the reaction solution into 30ml of cold water. Add 30% potassium hydroxide solution to adjust the pH to 7. Cool to 5℃ and allow crystallization for 30 minutes. Filter and wash to obtain 2,4,5-trimethoxybenzaldehyde. Step 3: Add 5g of 2,4,5-trimethoxybenzaldehyde and 1.5g of ZnO to a reaction flask. rO2/MCM-41 nanocatalyst, 10 mol% silver nitrate, and 50 ml acetonitrile were added dropwise with 8.7 g of 30% hydrogen peroxide solution at room temperature. After the addition was complete, the reaction system was heated to 50°C and reacted for 3 h. Step 4: After the reaction was complete, the reaction solution was added to 50 ml of 10% cold alkaline solution and stirred. The insoluble substances were filtered out, and the pH of the filtrate was adjusted to 3.5 with concentrated sulfuric acid. Extraction was performed with ethyl acetate (2 × 50 ml), and the organic phases were combined. The mixture was washed once with saturated sodium chloride, dried over magnesium sulfate, concentrated, and recrystallized from benzene and petroleum ether to give a white crystalline product, 2,4,5-trimethoxybenzoic acid.

Chemical Properties

white fine crystalline powder

Uses

2,4,5-Trimethoxybenzoic Acid can be used to alleviate, treat, and prevent inflammatory diseases.

Uses

2,4,5-Trimethoxybenzoic acid was used as internal standard during the determination of the various types of hydroxyl groups present in lignins.

Definition

ChEBI: 2,4,5-Trimethoxybenzoic acid is a methoxybenzoic acid.

135-77-3
490-64-2
Synthesis of 2,4,5-Trimethoxybenzoic acid from 1,2,4-Trimethoxybenzene
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View Lastest Price from 2,4,5-Trimethoxybenzoic acid manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
2,4,5-Trimethoxybenzoic acid pictures 2026-09-11 2,4,5-Trimethoxybenzoic acid
490-64-2
1KG 98%min 30tons/month WUHAN FORTUNA CHEMICAL CO., LTD
2,4,5-Trimethoxybenzoic acid pictures 2026-07-30 2,4,5-Trimethoxybenzoic acid
490-64-2
$150.00 1KG 98% 2000kg Anhui Dexinjia Biopharm Co., Ltd
2,4,5-Trimethoxybenzoic acid pictures 2026-06-30 2,4,5-Trimethoxybenzoic acid
490-64-2
1KG 98 10000KGS Shaanxi Dideu New Materials Co. Ltd
2,4,5-TRIMETHOXYBENZOIC ACID Benzoic acid, 2,4,5-trimethoxy- 2,4,5-Trimethoxybenzoic acid,99% AKOS BBS-00003744 RARECHEM AL BO 0322 2,4,5-trimethoxy-benzoicaci 2,4,5-Trimethoxybenzoic 2,4,5-trimethoxybenzoate 2,4,5-Trimethoxybenzoic acid,Asaronic acid TriMethoxybenzoic aci 2,4,5-TriMethoxybenzoic Acid, 97+% Two, four, five, three oxygen base benzoic acid 2,4,5-Trimethoxybenzoic Acid,>98% 2,4,5-TRIMETHOXYBENZOIC ACID CAS:490-64-2 2,4,5-Trimethoxybenzoesur 2,4,5-Trimethoxybenzoylmandelicacid ASARONIC ACID 490-64-2 C10H11O5 Organic Building Blocks C10 Carboxylic Acids Carbonyl Compounds Building Blocks Pharmaceutical raw materials Organic acids Aromatic Carboxylic Acids, Amides, Anilides, Anhydrides & Salts bc0001