| Identification | Back Directory | [Name]
3-AMINO-4-METHYLAMINO-BENZOIC ACID | [CAS]
66315-15-9 | [Synonyms]
RARECHEM AL BO 1003
Dabigatran Impurity 52
3-Amino-4-(methylamino)
Dabigatran carbyne Impurity 28
3-AMINO-4-METHYLAMINO-BENZOIC ACID
Benzoic acid, 3-aMino-4-(MethylaMino)- | [Molecular Formula]
C8H10N2O2 | [MDL Number]
MFCD06208249 | [MOL File]
66315-15-9.mol | [Molecular Weight]
166.18 |
| Chemical Properties | Back Directory | [Boiling point ]
386.0±37.0 °C(Predicted) | [density ]
1.343±0.06 g/cm3(Predicted) | [storage temp. ]
2-8°C(protect from light) | [pka]
4.04±0.10(Predicted) | [Appearance]
Brown to black Solid |
| Hazard Information | Back Directory | [Synthesis]
Step 2. 4-(Methylamino)-3-nitrobenzoic acid (9.8 g, 49.96 mmol) and palladium-carbon catalyst (1 g) were suspended in methanol (200 ml), and the reaction was stirred for 2 hours at room temperature and under hydrogen atmosphere. Upon completion of the reaction, the solid catalyst was removed by filtration. The filtrate was concentrated under reduced pressure to afford 3-amino-4-(methylamino)benzoic acid (8.2 g, 99% yield) as a white solid. The product was confirmed by LC-MS (electrospray ionization, m/z): [M + H]+ 167.11. 1H-NMR (300 MHz, DMSO-d6) δ 7.47-7.51 (m, 1H), 7.37 (d, J = 2.1Hz, 1H), 6.53 (d, J = 8.4Hz, 1H), 2.90 (s, 3H). | [References]
[1] Patent: US2012/277224, 2012, A1. Location in patent: Page/Page column 41
[2] Tetrahedron Letters, 2017, vol. 58, # 43, p. 4145 - 4148
[3] Patent: WO2013/97773, 2013, A1. Location in patent: Paragraph 0292
[4] Chem.Abstr., 1978, vol. 89, # 61044,
[5] Patent: WO2004/26829, 2004, A2. Location in patent: Page/Page column 77 |
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