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5-Amino-2-methylbenzoic acid

CAS No.
2840-04-2
Chemical Name:
5-Amino-2-methylbenzoic acid
Synonyms
TIMTEC-BB SBB007566;RARECHEM AL BO 1282;5-Amino-2-methylbenz;5-Amino-o-toluic acid;2-Methyl-5-Aminobenzoic;2-METHYL-5-AMINOBENZOIC ACID;5-AMINO-2-METHYL-BENZOIC ACID;METHYL 5-AMION-2-METHYLBENZOATE;Benzoic acid, 5-amino-2-methyl-;5-Amino-2-methylbenzoic Acid >
CBNumber:
CB5732692
Molecular Formula:
C8H9NO2
Molecular Weight:
151.16
MDL Number:
MFCD06208351
MOL File:
2840-04-2.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-05-28 02:16:27
Product description Number Pack Size Price
5-Amino-2-methylbenzoic Acid >98.0%(T) A2373 5g $94
5-Amino-2-methylbenzoic Acid >98.0%(T) A2373 25g $283
5-Amino-2-methylbenzoic acid ≥98%(HPLC) 28928 1G $27.34
5-Amino-2-methylbenzoic acid ≥98%(HPLC) 28928 5G $77.62
5-Amino-2-methylbenzoic acid ≥98%(HPLC) 28928 25G $294.44
More product size

5-Amino-2-methylbenzoic acid Properties

Melting point 194-199 °C
Boiling point 348.8±30.0 °C(Predicted)
Density 1.254±0.06 g/cm3(Predicted)
storage temp. 2-8°C
solubility DMSO (Slightly), Ethyl acetate (Very Slightly, Heated)
pka 2.95±0.25(Predicted)
form Solid
color Light Brown
Major Application peptide synthesis
InChI InChI=1S/C8H9NO2/c1-5-2-3-6(9)4-7(5)8(10)11/h2-4H,9H2,1H3,(H,10,11)
InChIKey FSXVZWAWYKMFMX-UHFFFAOYSA-N
SMILES C(O)(=O)C1=CC(N)=CC=C1C
CAS DataBase Reference 2840-04-2(CAS DataBase Reference)
UNSPSC Code 12352100
NACRES NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H315-H319-H302-H335
Precautionary statements  P264-P280-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313-P261-P280a-P304+P340-P305+P351+P338-P405-P501a
target organs Respiratory system
PPE dust mask type N95 (US), Eyeshields, Gloves
Hazard Codes  Xn
Risk Statements  22-36/37/38
Safety Statements  26
WGK Germany  WGK 3
HS Code  29224999
Storage Class 11 - Combustible Solids
Hazard Classifications Acute Tox. 4 Oral
Eye Irrit. 2
Skin Irrit. 2
STOT SE 3
NFPA 704
0
2 0

5-Amino-2-methylbenzoic acid price More Price(51)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
TCI Chemical A2373 5-Amino-2-methylbenzoic Acid >98.0%(T) 2840-04-2 5g $94 2026-04-30 Buy
TCI Chemical A2373 5-Amino-2-methylbenzoic Acid >98.0%(T) 2840-04-2 25g $283 2026-04-30 Buy
Chem-Impex 28928 5-Amino-2-methylbenzoic acid ≥98%(HPLC) 2840-04-2 1G $27.34 2026-05-19 Buy
Chem-Impex 28928 5-Amino-2-methylbenzoic acid ≥98%(HPLC) 2840-04-2 5G $77.62 2026-05-19 Buy
Chem-Impex 28928 5-Amino-2-methylbenzoic acid ≥98%(HPLC) 2840-04-2 25G $294.44 2026-05-19 Buy
Product number Packaging Price Buy
A2373 5g $94 Buy
A2373 25g $283 Buy
28928 1G $27.34 Buy
28928 5G $77.62 Buy
28928 25G $294.44 Buy

5-Amino-2-methylbenzoic acid Chemical Properties,Uses,Production

Chemical Properties

Beige powder

Uses

5-Amino-2-methylbenzoic Acid is used as a reagent in synthesis of several organic compounds including that of dihydroxylphenyl amides which are Hsp90 inhibitors. Also used in synthesis of a series of 2,5-diaminopyrimidine inhibitors of bruton’s tyrosine kinase with potential for use in cancer drug development.

Synthesis

2-Methyl-5-nitrobenzoic acid

1975-52-6

5-Amino-2-methylbenzoic acid

2840-04-2

General procedure for the synthesis of 5-amino-2-methylbenzoic acid from 2-methyl-5-nitrobenzoic acid: 2-methyl-5-nitrobenzoic acid (30.0 g, 0.166 mol) and Pd/C catalyst (1.8 g) were suspended in anhydrous methanol (1600 mL). The reaction mixture was stirred at 40 °C for 3 to 4 h at a hydrogen pressure of 50 Psi. The progress of the reaction was monitored by thin layer chromatography (TLC, unfolding agent ratio of petroleum ether: ethyl acetate = 1:2) and after confirming that the reaction was complete, the catalyst was removed by filtration. The filtrate was concentrated under reduced pressure to afford 5-amino-2-methylbenzoic acid (24 g, 96% yield) as a white solid.1H NMR (400 MHz, CDCl3) data were as follows: δ 7.10 (s, 1H), 6.89-6.91 (d, J=8.0 Hz, 1H), 6.64-6.66 (dd, J=8.0 Hz, 1H), 2.31 (s, 3H).

References

[1] Journal of Medicinal Chemistry, 1996, vol. 39, # 17, p. 3343 - 3356
[2] Bioorganic and Medicinal Chemistry Letters, 2008, vol. 18, # 23, p. 6273 - 6278
[3] Patent: WO2006/117669, 2006, A1. Location in patent: Page/Page column 41; 114
[4] Tetrahedron, 2018, vol. 74, # 47, p. 6795 - 6803
[5] Chemische Berichte, 1883, vol. 16, p. 1959

5-Amino-2-methylbenzoic acid Preparation Products And Raw materials

Global( 213)Suppliers
Supplier Tel Email Country ProdList Advantage
Capot Chemical Co.,Ltd.
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Shanghai Time Chemicals CO., Ltd.
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Accela ChemBio Inc.
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Alchem Pharmtech,Inc.
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CE Pharm Co.,Ltd
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CONIER CHEM AND PHARMA LIMITED
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Fuxin Pharmaceutical
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SIMAGCHEM CORP
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View Lastest Price from 5-Amino-2-methylbenzoic acid manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
5-Amino-2-methylbenzoic acid pictures 2025-12-29 5-Amino-2-methylbenzoic acid
2840-04-2
1kg 98% Changzhou waston chemical technology Co.,Ltd
5-Amino-2-methylbenzoic acid pictures 2025-12-01 5-Amino-2-methylbenzoic acid
2840-04-2
1KG 99.0% 10000KGS Shaanxi Dideu New Materials Co. Ltd
5-Amino-2-methylbenzoic acid pictures 2019-12-25 5-Amino-2-methylbenzoic acid
2840-04-2
1KG 99% 10tons CE Pharm Co.,Ltd

5-Amino-2-methylbenzoic acid Spectrum

2-METHYL-5-AMINOBENZOIC ACID 5-AMINO-2-METHYL-BENZOIC ACID 5-AMINO-2-METHYLBENZOIC ACID / 2-METHYL-5-AMINOBENZOIC ACID RARECHEM AL BO 1282 TIMTEC-BB SBB007566 METHYL 5-AMION-2-METHYLBENZOATE Benzoic acid, 5-amino-2-methyl- (9CI) 2-Methyl-5-Aminobenzoic 5-Amino-o-toluic acid 5-Amino-2-methylbenz 3-Carboxy-4-methylaniline, 4-Amino-2-carboxytoluene, 5-Amino-o-toluic acid 5-Amino-2-methylbenzoic Acid > Benzoic acid, 5-amino-2-methyl- 2840-04-2 2840-4-2 2840/4/2 Aromatic Carboxylic Acids, Amides, Anilides, Anhydrides & Salts Carboxylic Acids Phenyls & Phenyl-Het Benzoic acid Organic acids Carboxylic Acids Phenyls & Phenyl-Het CARBOXYLICACID