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4-Amino-2-methylbenzoic acid

Product Name
4-Amino-2-methylbenzoic acid
CAS No.
2486-75-1
Chemical Name
4-Amino-2-methylbenzoic acid
Synonyms
4-Amino-o-toluic;Tolvaptan Impurity 33;4-Amino-2-methylbenzoicaci;4-Amino-2-methybenzoic acid;4-AMINO-2-METHYLBENZOIC ACID;2-METHYL-4-AMINO-BENZOIC ACID;4-amino-2-methylbenozoic acid;4-azanyl-2-methyl-benzoic acid;Benzoic acid, 4-amino-2-methyl-;4-Amino-2-methylbenzoic Acid >
CBNumber
CB4321053
Molecular Formula
C8H9NO2
Formula Weight
151.16
MOL File
2486-75-1.mol
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4-Amino-2-methylbenzoic acid Property

Melting point:
160-165 °C
Boiling point:
339.5±30.0 °C(Predicted)
Density 
1.254±0.06 g/cm3(Predicted)
storage temp. 
Keep in dark place,Inert atmosphere,Room temperature
solubility 
soluble in Methanol
form 
Solid
pka
4.86±0.25(Predicted)
color 
Light orange to Yellow to Green
InChI
InChI=1S/C8H9NO2/c1-5-4-6(9)2-3-7(5)8(10)11/h2-4H,9H2,1H3,(H,10,11)
InChIKey
XRSQZFJLEPBPOZ-UHFFFAOYSA-N
SMILES
C(O)(=O)C1=CC=C(N)C=C1C
CAS DataBase Reference
2486-75-1(CAS DataBase Reference)
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Safety

Hazard Codes 
Xn
Risk Statements 
22
Safety Statements 
26
WGK Germany 
3
HS Code 
29224999
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H302Harmful if swallowed

Precautionary statements

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P270Do not eat, drink or smoke when using this product.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P501Dispose of contents/container to..…

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
691437
Product name
4-Amino-2-methylbenzoic acid
Purity
95%
Packaging
5g
Price
$85.5
Updated
2025/07/31
TCI Chemical
Product number
A2349
Product name
4-Amino-2-methylbenzoic Acid
Purity
>98.0%(HPLC)(T)
Packaging
5g
Price
$30
Updated
2025/07/31
TCI Chemical
Product number
A2349
Product name
4-Amino-2-methylbenzoic Acid
Purity
>98.0%(HPLC)(T)
Packaging
25g
Price
$120
Updated
2025/07/31
TRC
Product number
A637858
Product name
4-Amino-2-methylbenzoic Acid
Packaging
50mg
Price
$45
Updated
2021/12/16
TRC
Product number
A637858
Product name
4-Amino-2-methylbenzoic Acid
Packaging
100mg
Price
$60
Updated
2021/12/16
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4-Amino-2-methylbenzoic acid Chemical Properties,Usage,Production

Chemical Properties

White powder

Uses

peptide synthesis

reaction suitability

reaction type: solution phase peptide synthesis

Synthesis

1975-51-5

2486-75-1

GENERAL STEPS: Prior to each experiment, the tubular reaction apparatus was equilibrated by pumping solvent for 30 min at 16 bar hydrogen pressure (see Fig. 4). An Omnifit reaction cartridge (20.0 mm outer diameter, 15.0 mm inner diameter) containing 1 g Pd/C catalyst was used. To prevent overpressurization of the system in case of blockage, the upper pressure of the Knauer pump was set to 25 bar. with the injection ring disconnected from the flow line, the injection ring was opened and manually injected with 3.6 mL of a 0.076 M ethanol solution of 2-methyl-4-nitrobenzoic acid (excess feedstock solution in the ring was recovered for reuse). The injection ring was then closed and plugged into the flow stream. Collect the product at the outlet of the system downstream of the backpressure regulator for 120 min. The solvent is removed by reduced pressure distillation (first using a rotary evaporator and then a secondary rotary vane pump) to give 4-amino-2-methylbenzoic acid.

References

[1] Tetrahedron, 2018, vol. 74, # 47, p. 6795 - 6803
[2] Chemische Berichte, 1884, vol. 17, p. 161
[3] Patent: US2012/46467, 2012, A1. Location in patent: Page/Page column 26

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

Raw materials

Preparation Products

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4-Amino-2-methylbenzoic acid Suppliers

Changzhou Baokang Pharmaceutical & Chemical Co.,Ltd.
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0519-0519-88494757 15961115886
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+86-519-83756102
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sales@baokangchem.com
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China
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Changzhou Huasheng Chemical Technology Co., Ltd
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0519-85861892 13861049519
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China
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J & K SCIENTIFIC LTD.
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jkinfo@jkchemical.com
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Meryer (Shanghai) Chemical Technology Co., Ltd.
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4006356688 18621169109
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market03@meryer.com
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China
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future industrial shanghai co., ltd
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400-0066400 13621662912
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021-55660885
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sales@jonln.com
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Alfa Aesar
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400-6106006
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021-67582001/03/05
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saleschina@alfa-asia.com
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TCI (Shanghai) Development Co., Ltd.
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021-67121386
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021-67121385
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Sales-CN@TCIchemicals.com
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Energy Chemical
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021-58436166
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Capot Chemical Co., Ltd
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+86 (0) 571 85 58 67 18
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0086-571-85864795
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Beijing Ouhe Technology Co., Ltd
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010-010-82967028 13522913783
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+86-10-82967029
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2355560935@qq.com
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View Lastest Price from 4-Amino-2-methylbenzoic acid manufacturers

Hebei Chuanghai Biotechnology Co., Ltd
Product
4-Amino-2-methylbenzoic acid 2486-75-1
Price
US $0.00-0.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
500000kg
Release date
2024-10-28
Hebei Yanxi Chemical Co., Ltd.
Product
4-Amino-2-methylbenzoic acid 2486-75-1
Price
US $70.00-13.00/kg
Min. Order
1kg
Purity
0.99
Supply Ability
20 tons
Release date
2023-09-14
ShenZhen H&D Pharmaceutical Technology Co., LTD
Product
Tolvaptan Impurity 33
Price
US $0.00-0.00/mg
Min. Order
10mg
Purity
98%
Supply Ability
500mg
Release date
2024-08-12

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