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ChemicalBook >> CAS DataBase List >>Benzoic acid, 2-amino-4-hydroxy-

Benzoic acid, 2-amino-4-hydroxy-

Benzoic acid, 2-amino-4-hydroxy- Structure
Benzoic acid, 2-amino-4-hydroxy- structure
CAS No.
38160-63-3
Chemical Name:
Benzoic acid, 2-amino-4-hydroxy-
Synonyms
Aspirin Impurity 25;Mesalazine Impurity 25;4-Hydroxyanthanilic acid;4-Hydroxy-anthranilsaeure;2-Amino-4-hydroxybenzoicaci;Benzoic acid, 2-amino-4-hydroxy-
CBNumber:
CB61868548
Molecular Formula:
C7H7NO3
Molecular Weight:
153.14
MDL Number:
MFCD00071506
MOL File:
38160-63-3.mol
MSDS File:
SDS
Last updated:2026-05-28 02:20:42
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Benzoic acid, 2-amino-4-hydroxy- Properties

Melting point 158 °C (decomp)
Boiling point 397.3±32.0 °C(Predicted)
Density 1.491±0.06 g/cm3(Predicted)
storage temp. Keep in dark place,Inert atmosphere,Room temperature
solubility Acetonitrile (Slightly), DMSO (Slightly)
form Solid
pka 5.31±0.10(Predicted)
color Dark Brown

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H319-H335-H315-H302+H312+H332
Precautionary statements  P301+P312-P302+P352-P305+P351+P338
HS Code  2922500090

Benzoic acid, 2-amino-4-hydroxy- price More Price(45)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
TRC TRC-A636425-50MG 2-Amino-4-hydroxybenzoic acid 38160-63-3 50mg $103 2026-06-03 Buy
TRC TRC-A636425-500MG 2-Amino-4-hydroxybenzoic acid 38160-63-3 500mg $498 2026-06-03 Buy
TRC TRC-A636425-100MG 2-Amino-4-hydroxybenzoic acid 38160-63-3 100mg $142 2026-06-03 Buy
Apolloscientific OR52786 2-Amino-4-hydroxybenzoic acid 97% 38160-63-3 100mg $89 2026-06-04 Buy
Apolloscientific OR52786 2-Amino-4-hydroxybenzoic acid 97% 38160-63-3 250mg $111 2026-06-04 Buy
Product number Packaging Price Buy
TRC-A636425-50MG 50mg $103 Buy
TRC-A636425-500MG 500mg $498 Buy
TRC-A636425-100MG 100mg $142 Buy
OR52786 100mg $89 Buy
OR52786 250mg $111 Buy

Benzoic acid, 2-amino-4-hydroxy- Chemical Properties, Uses, Production

Uses

2-Hydroxy-4-aminobenzoic acid is a carboxylic acid derivative and an important intermediate in the synthesis of pharmaceuticals and dyes.

Synthesis

1. At room temperature, m-aminophenol reacts with sodium alcohol in alcohol for 0.8~1.2 hours to obtain an alcohol solution of m-aminophenol sodium salt; the molar ratio of m-aminophenol to sodium alcohol is 1:1~5 ;

2. put the alcohol solution of m-aminophenol sodium salt into an autoclave, pass the carbon dioxide recovery gas, and react under the supercritical condition of carbon dioxide for I~5 hours (preferably 3~5 hours), and the molar ratio of m-aminophenol sodium salt to carbon dioxide is 1:1~10 ;

At the end of the reaction, the resulting reaction solution is reduced to room temperature, filtered, and the filtrate is evaporated under reduced pressure to remove the solvent alcohol, to obtain a solid; add water to dissolve the solid (the amount of water is just enough to make the solid soluble), to obtain the solution; to the resulting solution, add inorganic acid to adjust the PH to 6~7, a solid is precipitated, and filtered again, and the resultant filter cake is 2-hydroxy-4-amino benzoic acid.

Benzoic acid, 2-amino-4-hydroxy- Preparation Products And Raw materials

Raw materials

Preparation Products

Benzoic acid, 2-amino-4-hydroxy- Suppliers

Global Suppliers ( 68)
Supplier Tel Email Country ProdList Advantage
NOTA Chemical (Shanghai) Co.,Ltd 021-50189163 sales@notachem.com China 208 64
UHN Shanghai Research & Development Co., Ltd. 021-58958002 18930822973 sales@uhnshanghai.com China 997 58
SynAsst Chemical. 021-60343070 China 12731 55
Bide Pharmatech Ltd. 400-164-7117 18317119277 product02@bidepharm.com China 40000 60
Quality Control Solutions Ltd. 0755-66853366 13670046396 orders@qcsrm.com China 18188 56
Shanghai ChuangYan Chemical Technology Co., Ltd. 021-11111111 11111111111 546919421@qq.com China 3769 55
Nanjing Chalf-Pharm Technology Co., Ltd. 025-57018978 18251899859 sales@chalf-pharm.com China 5855 50
JW & Y Pharmlab Co., Ltd. 021-64340559 xinyu_shi@jwypharmlab.com.cn China 11999 58
Shanghai Brain Biotechnology Co., Ltd. 13564638271 shhjiang1977@163.com China 2983 55
Shanghai YuanYe Biotechnology Co., Ltd. 15026964105 2881489226@qq.com China 89667 60
Supplier Advantage
NOTA Chemical (Shanghai) Co.,Ltd 64
UHN Shanghai Research & Development Co., Ltd. 58
SynAsst Chemical. 55
Bide Pharmatech Ltd. 60
Quality Control Solutions Ltd. 56
Shanghai ChuangYan Chemical Technology Co., Ltd. 55
Nanjing Chalf-Pharm Technology Co., Ltd. 50
JW & Y Pharmlab Co., Ltd. 58
Shanghai Brain Biotechnology Co., Ltd. 55
Shanghai YuanYe Biotechnology Co., Ltd. 60

View Latest Price from Benzoic acid, 2-amino-4-hydroxy- manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Benzoic acid, 2-amino-4-hydroxy- pictures 2026-06-30 Benzoic acid, 2-amino-4-hydroxy-
38160-63-3
 1kg 99% 10000KGS Shaanxi Dideu New Materials Co. Ltd

Benzoic acid, 2-amino-4-hydroxy- Spectrum

Benzoic acid, 2-amino-4-hydroxy-(38160-63-3)1HNMR

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Benzoic acid, 2-amino-4-hydroxy- 4-Hydroxyanthanilic acid 4-Hydroxy-anthranilsaeure Mesalazine Impurity 25 2-Amino-4-hydroxybenzoicaci Aspirin Impurity 25 38160-63-3