| Identification | More | [Name]
3-AMINOPHTHALIC ACID HYDROCHLORIDE | [CAS]
6946-22-1 | [Synonyms]
3-AMINO-1,2-BENZENEDICARBOXYLIC ACID HYDROCHLORIDE
3-AMINOPHTHALIC ACID HYDROCHLORIDE
2-benzenedicarboxylicacid,3-amino-hydrochloride
3-Aminophthalic acid HCL
3-AminophthalicacidHClhydrate
3-Aminophthalicacidhydrochloridelhydrate
3-AMINOPHTHALIC ACID HYDROCHLORIDE 1-HYDRATE
3-aminobenzene-1,2-dicarboxylic acid hydrochloride
3-AMINOPHTHALIC ACID HYDROCHLORIDE 98% | [EINECS(EC#)]
230-106-4 | [Molecular Formula]
C8H8ClNO4 | [MDL Number]
MFCD00017644 | [Molecular Weight]
217.61 | [MOL File]
6946-22-1.mol |
| Chemical Properties | Back Directory | [Appearance]
off-white to yellow-beige crystalline powder | [Melting point ]
182 °C
| [storage temp. ]
Inert atmosphere,Room Temperature | [solubility ]
DMSO (Slightly), Methanol (Very Slightly) | [form ]
Crystalline Powder | [color ]
Off-white to yellow-beige | [Stability:]
Hygroscopic | [InChI]
InChI=1S/C8H7NO4.ClH/c9-5-3-1-2-4(7(10)11)6(5)8(12)13;/h1-3H,9H2,(H,10,11)(H,12,13);1H | [InChIKey]
ZBZAVEORKXFUQB-UHFFFAOYSA-N | [SMILES]
C1(C(=O)O)C(N)=CC=CC=1C(=O)O.Cl | [CAS DataBase Reference]
6946-22-1(CAS DataBase Reference) | [EPA Substance Registry System]
1,2-Benzenedicarboxylic acid, 3-amino-, hydrochloride (6946-22-1) |
| Safety Data | Back Directory | [Hazard Codes ]
Xn | [Risk Statements ]
R36/37/38:Irritating to eyes, respiratory system and skin . | [Safety Statements ]
S24/25:Avoid contact with skin and eyes . | [TSCA ]
Yes | [HS Code ]
29242998 |
| Hazard Information | Back Directory | [Chemical Properties]
off-white to yellow-beige crystalline powder | [Uses]
3-Aminophthalic Acid Hydrochloride is a reactant used in the preparation of local anesthetics. | [Synthesis]
The general procedure for the synthesis of 3-aminophthalic acid hydrochloride from 3-nitrophthalic acid was as follows: an ethanol solution (600 mL) of 3-nitrophthalic acid (100 g) and 10% Pd/C catalyst (3.2 g) was added to an autoclave. A hydrogen pressure of 4.0 kg was applied at 20-25 °C and the reaction was carried out for 3.0 hours. Upon completion of the reaction, the reaction mixture was cooled to 20 °C and filtered through a Hyflo bed. The filtrate was concentrated by distillation under reduced pressure and acetone was added to the residue. The mixture was cooled to 10 °C and concentrated hydrochloric acid was added slowly with continuous stirring. After removing the solvent under reduced pressure, acetonitrile was added. The mixture was again cooled to 10°C and the precipitated solid was filtered. Finally, the product was dried under vacuum at 45-50 °C for 6 h to give 3-aminophthalic acid hydrochloride (65.0 g). | [References]
[1] Patent: US5103057, 1992, A
[2] Patent: EP434145, 1991, A2
[3] Patent: WO2017/33116, 2017, A1. Location in patent: Paragraph 00114; 00132
[4] Patent: CN106986783, 2017, A. Location in patent: Paragraph 0008 |
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