- N-(4-Aminobenzoyl)-beta-alanine
- N-(4-aminobenzoyl)-beta-alanine (7377-8-4)
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Cas Database |
| Name |
N-(4-Aminobenzoyl)-beta-alanine |
EINECS | 616-017-7 |
| CAS No. | 7377-08-4 | Density | 1.303 g/cm3 |
| PSA | 92.42000 | LogP | 1.44540 |
| Solubility | N/A | Melting Point |
152-154 °C(lit.) |
| Formula | C10H12N2O3 | Boiling Point | 519.4 °C at 760 mmHg |
| Molecular Weight | 208.217 | Flash Point | 267.9 °C |
| Transport Information | N/A | Appearance | white to light orange-brown crystalline powder |
| Safety | 26-37/39 | Risk Codes | 36/37/38 |
| Molecular Structure |
|
Hazard Symbols |
 Xi
|
| Synonyms |
b-Alanine, N-(p-aminobenzoyl)-(6CI,7CI,8CI);3-(4-Aminobenzoylamino)propionic acid;3-[(4-Aminobenzoyl)amino]propanoic acid;p-Amino-N-benzoyl-b-alanine; |
Article Data | 7 |
N-(4-Aminobenzoyl)-beta-alanine Synthetic route
- 59642-21-6
N-(4-nitrobenzoyl)-beta-alanine
- 7377-08-4
N-(4-aminobenzoyl)-B-alanine
| Conditions | Yield |
|---|---|
| With 1% Pd/C; hydrogen In methanol at 20℃; | 98% |
| With palladium 10% on activated carbon; hydrogen In methanol at 20℃; under 750.075 Torr; for 3h; Inert atmosphere; | 89% |
| With palladium on activated carbon; hydrogen In methanol at 20℃; under 750.075 Torr; for 3h; | 75% |
| Conditions | Yield |
|---|---|
| Multi-step reaction with 2 steps 1: aq. NaOH solution 2: zinc; acid View Scheme | |
| Multi-step reaction with 2 steps 1: sodium hydroxide / 2.5 h / 0 - 20 °C 2: hydrogen; palladium 10% on activated carbon / methanol / 3 h / 20 °C / 750.08 Torr / Inert atmosphere View Scheme | |
| Multi-step reaction with 3 steps 1: sodium hydroxide / water / 3 h / 5 °C 2: hydrogen / water / 20 °C / 760.05 Torr 3: hydrogenchloride / water / 0.17 h / pH 1 - 2 View Scheme | |
| Multi-step reaction with 2 steps 1: sodium hydroxide / 0.5 h / 0 °C 2: palladium on activated carbon; hydrogen / methanol / 3 h / 20 °C / 750.08 Torr View Scheme |
- 7377-08-4
N-(4-aminobenzoyl)-B-alanine
| Conditions | Yield |
|---|---|
| Multi-step reaction with 2 steps 1: hydrogen / water / 20 °C / 760.05 Torr 2: hydrogenchloride / water / 0.17 h / pH 1 - 2 View Scheme |
- 7377-08-4
N-(4-aminobenzoyl)-B-alanine
| Conditions | Yield |
|---|---|
| With hydrogenchloride In water for 0.166667h; pH=1 - 2; |
| Conditions | Yield |
|---|---|
| Stage #1: N-(4-aminobenzoyl)-B-alanine With hydrogenchloride; sodium nitrite In water at 0℃; for 1h; Stage #2: phenol With sodium carbonate; sodium hydroxide In water at 0℃; pH=8; | 97% |
| Conditions | Yield |
|---|---|
| Stage #1: N-(4-aminobenzoyl)-B-alanine With hydrogenchloride; sodium nitrite In water at 0 - 5℃; for 1h; Stage #2: salicylic acid With sodium carbonate; sodium hydroxide In water at 0 - 5℃; for 1h; | 95% |
| Stage #1: N-(4-aminobenzoyl)-B-alanine With methanesulfonic acid; sodium nitrite In water at 10 - 12℃; for 0.5h; Stage #2: salicylic acid With sodium hydroxide; sodium carbonate In water at 7 - 12℃; for 3h; Stage #3: With hydrogenchloride; water at 60 - 65℃; for 3h; pH=4.0 - 4.5; Product distribution / selectivity; | 90% |
| Stage #1: N-(4-aminobenzoyl)-B-alanine With hydrogenchloride; sodium nitrite In water at 0℃; for 1h; Stage #2: salicylic acid With sodium carbonate; sodium hydroxide In water at 0℃; pH=8; | 85% |
| Stage #1: N-(4-aminobenzoyl)-B-alanine With sodium nitrite In water at -5 - 0℃; for 1.5h; Stage #2: salicylic acid With sodium carbonate; sodium hydroxide In water at -5 - 0℃; for 3h; pH=7.5 - 8.5; |
| Conditions | Yield |
|---|---|
| With thionyl chloride at 0℃; for 5h; Inert atmosphere; Reflux; | 93% |
| Conditions | Yield |
|---|---|
| Stage #1: N-(4-aminobenzoyl)-B-alanine With hydrogenchloride In water at 20 - 25℃; Stage #2: With sodium nitrite In water at -2 - 2℃; Stage #3: 4-hydroxy-benzoic acid Further stages; | 91% |
- 7377-08-4
N-(4-aminobenzoyl)-B-alanine
- 108-24-7
acetic anhydride
- 212198-64-6
3-(4-acetylamino-benzoylamino)propionic acid
| Conditions | Yield |
|---|---|
| With acetic acid In water at 30 - 45℃; | 90% |
| Conditions | Yield |
|---|---|
| In water Heating; | 87% |
N-(4-Aminobenzoyl)-beta-alanine Chemical Properties
Empirical Formula: C10H12N2O3
Molecular Weight: 208.2139 g/mol
Index of Refraction: 1.604
Density: 1.303 g/cm3
Flash Point: 267.9 °C
Enthalpy of Vaporization: 83.4 kJ/mol
Boiling Point: 519.4 °C at 760 mmHg
Vapour Pressure: 1.29E-11 mmHg at 25 °C
Melting point: 152-154 °C(lit.)
Appearance: White to light orange-brown crystalline powder
Structure of N-(4-Aminobenzoyl)-beta-alanine (CAS NO.7377-08-4):
Product Category of N-(4-Aminobenzoyl)-beta-alanine (CAS NO.7377-08-4): Balsalazide
N-(4-Aminobenzoyl)-beta-alanine Toxicity Data With Reference
N-(4-Aminobenzoyl)-beta-alanine (CAS NO.7377-08-4) hasn't been listed as a carcinogen by NTP, IARC, ACGIH, or CA Prop 65.
N-(4-Aminobenzoyl)-beta-alanine Safety Profile
Hazard Codes: 
Xi
Risk Statements: 36/37/38
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 26-37/39
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S37/39:Wear suitable gloves and eye/face protection.
N-(4-Aminobenzoyl)-beta-alanine Specification
N-(4-Aminobenzoyl)-beta-alanine , its cas register number is 7377-08-4. It also can be called 3-(4-Amino-benzoylamino)-propionic acid ; and beta-Alanine, N-(4-aminobenzoyl)- . It is hazardous, so the first aid measures and others should be known. Such as: When on the skin: first, should flush skin with plenty of water immediately for at least 15 minutes while removing contaminated clothing. Secondly, get medical aid. Or in the eyes: Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Then get medical aid soon. While, it's inhaled: Remove from exposure and move to fresh air immediately. Give artificial respiration while not breathing. When breathing is difficult, give oxygen. And as soon as to get medical aid. Then you have the ingesting of the product: If victim is conscious and alert, give 2-4 cupfuls of milk or water. Get medical aid immediately.
In addition, N-(4-Aminobenzoyl)-beta-alanine (CAS NO.7377-08-4) could be stable under normal temperatures and pressures, and you must not take it with strong oxidants. And also prevent it to broken down into hazardous decomposition products: irritating and toxic fumes and gases.
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