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ChemicalBook >> CAS DataBase List >>3,4,5-Trimethoxyphenylacetic acid

3,4,5-Trimethoxyphenylacetic acid

3,4,5-Trimethoxyphenylacetic acid Structure
3,4,5-Trimethoxyphenylacetic acid structure
CAS No.
951-82-6
Chemical Name:
3,4,5-Trimethoxyphenylacetic acid
Synonyms
3,4,5-TrimethoxyphenyL;TIMTEC-BB SBB003317;RARECHEM AL BO 0126;LABOTEST-BB LT00454740;Laudanosine intermediate;TriMethoxyphenylaceticaci;3,4,5-Trimethoxyphenylacetic;5-TriMethoxyphenylacetic acid;473,4,5-Trimethoxyacetic acid;3,4,5-TRIMETHOXYPHENYLACETIC ACID
CBNumber:
CB6415804
Molecular Formula:
C11H14O5
Molecular Weight:
226.23
MDL Number:
MFCD00004336
MOL File:
951-82-6.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-05-28 05:15:41
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3,4,5-Trimethoxyphenylacetic acid Properties

Melting point 117-120 °C (lit.)
Boiling point 327.83°C (rough estimate)
Density 1.2668 (rough estimate)
refractive index 1.5140 (estimate)
storage temp. Sealed in dry,Room Temperature
solubility Chloroform (Slightly), Methanol (Slightly)
pka 4.23±0.10(Predicted)
form Crystalline Powder
color White to cream
Water Solubility SOLUBLE
BRN 2697844
InChI InChI=1S/C11H14O5/c1-14-8-4-7(6-10(12)13)5-9(15-2)11(8)16-3/h4-5H,6H2,1-3H3,(H,12,13)
InChIKey DDSJXCGGOXKGSJ-UHFFFAOYSA-N
SMILES C1(CC(O)=O)=CC(OC)=C(OC)C(OC)=C1
CAS DataBase Reference 951-82-6(CAS DataBase Reference)
FDA UNII K1HZ43C68Y
NIST Chemistry Reference 3,4,5-Trimethoxyphenylacetic acid(951-82-6)
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 dust mask type N95 (US), Eyeshields, Gloves
Hazard Codes  Xi
Risk Statements  38-36/37/38-22
Safety Statements  22-24/25-37/39-26
WGK Germany  3
Hazard Note  Irritant
HS Code  29189090
Storage Class 11 - Combustible Solids
NFPA 704
1
2 0

3,4,5-Trimethoxyphenylacetic acid price More Price(76)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich T70602 3,4,5-Trimethoxyphenylacetic acid 97% 951-82-6 10g $101 2026-04-30 Buy
Sigma-Aldrich T70602 3,4,5-Trimethoxyphenylacetic acid 97% 951-82-6 50g $305 2026-04-30 Buy
TCI Chemical T1105 3,4,5-Trimethoxyphenylacetic Acid >98.0%(GC)(T) 951-82-6 5g $54 2026-04-30 Buy
TCI Chemical T1105 3,4,5-Trimethoxyphenylacetic Acid >98.0%(GC)(T) 951-82-6 25g $168 2026-04-30 Buy
Usbiological 290525 3,4,5-Trimethoxyphenylacetic acid Asreported 951-82-6 25g $359 2026-06-03 Buy
Product number Packaging Price Buy
T70602 10g $101 Buy
T70602 50g $305 Buy
T1105 5g $54 Buy
T1105 25g $168 Buy
290525 25g $359 Buy

3,4,5-Trimethoxyphenylacetic acid Chemical Properties, Uses, Production

Synthesis

In an argon-filled glove box, a cesium salt of 2-(3,4,5-methoxyphenyl)acetic acid (35.8 mg) was introduced and transferred to a reaction flask. Dry dimethyl sulfoxide (0.5 mL) was added to the flask, and the mixture was shaken to dissolve the product in the dimethyl sulfoxide. The reaction tube was removed from the glove box and connected to a carbon dioxide system to displace the argon gas in the reaction flask, filling the reaction system with carbon dioxide. The resulting reaction mixture was stirred at room temperature for 2 minutes, then heated to 150 °C. After the reaction was complete, the reaction mixture was cooled at room temperature, and the reaction was quenched with 2M dilute hydrochloric acid (5 mL) to convert the corresponding cesium salt into the target product acid. The reaction mixture was stirred for 2 minutes. The reaction mixture was extracted with ethyl acetate (3-5 mL, 3 times). The combined organic layers (ethyl acetate) were dried with magnesium sulfate. The combined organic layers were filtered to remove the magnesium sulfate solid. The combined organic layers were concentrated under reduced pressure. The resulting solid (after evaporating the solvent) was then vacuum-pumped for 30 minutes to remove any remaining solvent, yielding the target product, 3,4,5-trimethoxyphenylacetic acid.

Chemical Properties

white to cream-colored crystalline powder

Uses

3,4,5-Trimethoxyphenylacetic Acid is a reagent in the preparation of 3-phenylcoumarins as antidepressant agents.

Definition

ChEBI: 2-(3,4,5-trimethoxyphenyl)acetic acid is a member of methoxybenzenes.

3,4,5-Trimethoxyphenylacetic acid Preparation Products And Raw materials

Raw materials

Preparation Products

COMBRETASTATIN A-4 Desmethyl-5'-methoxylaudanosine 1-chloro-3-(3,4,5-trimethoxyphenyl)propan-2-one Ethyl 3,4,5-trimethoxyphenyl acetate

3,4,5-Trimethoxyphenylacetic acid Suppliers

Global Suppliers ( 360)
Supplier Tel Email Country ProdList Advantage
Chongqing Xinboyao Biological Technology Co., LTD 19122915778 1549869036@qq.com China 500 58
Changzhou DongChen Pharmaceutical Co., Ltd. 0519-88995800 13815038136;13815038136 gjf@dcpharmtech.com China 62 55
Hefei NaNo Biological Technology Co., Ltd. 0551-65629887 18010855303 sales@hfnhsw.com China 268 58
Beijing Bainiannuan Sci.&Tec. Co., Ltd 13240490036 marymeng@bdnchem.com China 35 58
Watson Chemistry (Changzhou) Co.,Ltd. 0519-86627600 13775194445 xwz@eastfine.net China 18 58
Chongqing Yuzhiquan Biological Technology Co., Ltd. 18306022109 3236923470@qq.com China 283 58
Suqian Gaosai Biomedical Technology Co., Ltd 15250728346 465418843@qq.com China 29 58
J & K SCIENTIFIC LTD. 18210857532 18210857532 jkinfo@jkchemical.com China 96815 76
INTATRADE GmbH +49 3493/605464 sales@intatrade.de Germany 3563 66
future industrial shanghai co., ltd 400-0066400 13621662912 sales@jonln.com China 1989 65
Supplier Advantage
Chongqing Xinboyao Biological Technology Co., LTD 58
Changzhou DongChen Pharmaceutical Co., Ltd. 55
Hefei NaNo Biological Technology Co., Ltd. 58
Beijing Bainiannuan Sci.&Tec. Co., Ltd 58
Watson Chemistry (Changzhou) Co.,Ltd. 58
Chongqing Yuzhiquan Biological Technology Co., Ltd. 58
Suqian Gaosai Biomedical Technology Co., Ltd 58
J & K SCIENTIFIC LTD. 76
INTATRADE GmbH 66
future industrial shanghai co., ltd 65

View Latest Price from 3,4,5-Trimethoxyphenylacetic acid manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
3,4,5-Trimethoxyphenylacetic acid pictures 2026-09-14 3,4,5-Trimethoxyphenylacetic acid
951-82-6
 $50.00-1000.00 1KG 0.99 10MT per month Jinan Dexinjia Bio&Tech Co., Ltd
3, 4, 5-Trimethoxyphenylacetic Acid pictures 2026-05-28 3, 4, 5-Trimethoxyphenylacetic Acid
951-82-6
 $10.70 10kg 99% 10000kg Hebei Chuanghai Biotechnology Co,.LTD
3,4,5-Trimethoxyphenylacetic acid pictures 2025-06-20 3,4,5-Trimethoxyphenylacetic acid
951-82-6
 $1.00-10.00 1kg 0.99 5 tons Hebei Yanxi Chemical Co., Ltd.

3,4,5-Trimethoxyphenylacetic acid Spectrum

3,4,5-Trimethoxyphenylacetic acid(951-82-6)MS3,4,5-Trimethoxyphenylacetic acid(951-82-6)1HNMR3,4,5-Trimethoxyphenylacetic acid(951-82-6)13CNMR3,4,5-Trimethoxyphenylacetic acid(951-82-6)IR13,4,5-Trimethoxyphenylacetic acid(951-82-6)IR23,4,5-Trimethoxyphenylacetic acid(951-82-6)Raman

951-82-6 (3,4,5-Trimethoxyphenylacetic acid) Related Search:

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4-Hydroxyphenylacetic acid 4-Methylphenylacetic acid 3,4,5-Trimethoxy benzoic acid 1,3,5-Trimethoxybenzene Acetic acid
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3,4,5-Trimethoxybenzeneacetic acid 3,4,5-TriMethoxyphenylacetic acid, 99% 10GR 3,4,5-TRIMETHOXYPHENYL ACETIC ACID FOR S (3,4,5-Trimethoxyphenyl)acetic acid, 2-(3,4,5-Trimethoxyphenyl)ethanoic acid 3,4,5-TriMethoxyphenylacetic Acid, 97+% Three, four, five, three oxygen radicals phenylacetic acid TriMethoxyphenylaceticaci Benzeneacetic acid, 3,4,5-trimethoxy- RARECHEM AL BO 0126 TIMTEC-BB SBB003317 LABOTEST-BB LT00454740 3,4,5-TRIMETHOXYPHENYL ACETIC ACID 99+% 5-TriMethoxyphenylacetic acid 3,4,5-TRIMETHOXYPHENYLACETIC ACID Laudanosine intermediate 3,4,5-Trimethoxyphenylacetic 3,4,5-Trimethoxyphenylacetic acid 98% 2-(3,4,5-trimethoxyphenyl)acetate T**3,4,5-Trimethoxyphenylacetic acid 3,4,5-Trimethoxyphenylacetic acid,98% 3,4,5 TrimethoxyphenyL,3,4,5TrimethoxyphenyL 3,4,5-TrimethoxybenzoicAcid（Assumed） Abmole M4943-100mg 3,4,5-Trimethoxyphenylacetic acid 951-82-6 3,4,5-TrimethoxyphenyL 473,4,5-Trimethoxyacetic acid 951-82-6 CH3O3C6H2CH2CO2H C11H14O5 C11H13O5 CARBOXYLIC ACID Building Blocks C11 to C12 Carbonyl Compounds Carboxylic Acids Organic Building Blocks Biochemics C11 to C12 Carbonyl Compounds Carboxylic Acids Aromatic Phenylacetic Acids and Derivatives