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Basic Information
| CAS No.: | 1072-67-9 |
|---|---|
| Name: | 3-Amino-5-methylisoxazole |
| Article Data: | 22 |
| Molecular Structure: | |
|
|
|
| Formula: | C4H6N2O |
| Molecular Weight: | 98.1044 |
| Synonyms: | Isoxazole,3-amino-5-methyl- (6CI,7CI,8CI);5-Methyl-1,2-oxazol-3-amine;5-Methyl-3-aminoisoxazole;5-Methyl-3-isoxazolamine;5-Methyl-3-isoxazolylamine;NSC 159134;3-amino-5-methylisooxzole; |
| EINECS: | 214-013-6 |
| Density: | 1.167 g/cm3 |
| Melting Point: | 59-63 °C |
| Boiling Point: | 235.9 °C at 760 mmHg |
| Flash Point: | 96.5 °C |
| Solubility: | soluble in water |
| Appearance: | slightly yellow flakes |
| Hazard Symbols: |
 F, Xi
|
| Risk Codes: | 5-36/37/38-11-36/37/38/5-20/21/22 |
| Safety: | 22-24/25-47-37/39-26-16-26/37/39/47-36 |
| PSA: | 52.05000 |
| LogP: | 1.14640 |
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Synthetic route
- 1072-67-9
5-methylisoxazol-3-ylamine
Conditions
| Conditions | Yield |
|---|---|
| Stage #1: C11H13N3O2S With hydroxylamine hydrochloride; potassium carbonate In water at 85℃; for 2h; Stage #2: With hydrogenchloride In water for 1h; | 80% |
Conditions
| Conditions | Yield |
|---|---|
| Stage #1: 3-hydroxybutanenitrile With hydroxylamine hydrochloride; potassium carbonate In water at 20 - 60℃; for 3h; Stage #2: With iron(III) chloride In toluene Reagent/catalyst; Temperature; Reflux; | 77% |
- 91377-59-2
2-(5-methyl-1,2-oxazol-3-yl)-1H-isoindole-1,3(2H)-dione
- 1072-67-9
5-methylisoxazol-3-ylamine
Conditions
| Conditions | Yield |
|---|---|
| With hydrazine hydrate In ethanol for 3h; Heating; | 75.1% |
- 108790-08-5, 127461-31-8
C4H4N2O2S
- 1165952-91-9
cyclohexa-1,3-diene
A
- 1072-67-9
5-methylisoxazol-3-ylamine
Conditions
| Conditions | Yield |
|---|---|
| In tetrahydrofuran at 20℃; for 22h; hetero-Diels-Alder reaction; | A n/a B n/a C 64% |
...Expand
- 100143-11-1
(5-methyl-isoxazol-3-yl)-carbamic acid benzyl ester
- 1072-67-9
5-methylisoxazol-3-ylamine
Conditions
| Conditions | Yield |
|---|---|
| With sodium hydroxide |
- 92087-97-3
(5-methyl-isoxazol-3-yl)-carbamic acid ethyl ester
- 1072-67-9
5-methylisoxazol-3-ylamine
Conditions
| Conditions | Yield |
|---|---|
| With sodium hydroxide |
Conditions
| Conditions | Yield |
|---|---|
| (i) Br2, MeOH, (ii) aq. NaOH, NH2CONHOH; Multistep reaction; |
- 106124-31-6
(Z)-4-(5-Methyl-isoxazol-3-ylamino)-pent-3-en-2-one
- 1072-67-9
5-methylisoxazol-3-ylamine
Conditions
| Conditions | Yield |
|---|---|
| With sodium ethanolate In ethanol for 3h; Heating; Yield given; |
Conditions
| Conditions | Yield |
|---|---|
| With sodium hypochlorite; borate buffer at 25℃; pH=9; Kinetics; Further Variations:; pH-values; Reagents; Solvents; |
...Expand
- 723-46-6
sulfamethoxazole
A
- 1072-67-9
5-methylisoxazol-3-ylamine
D
- 29699-89-6
N-(5-methyl-isoxazol-3-yl)-4-nitro-benzenesulfonamide
Conditions
| Conditions | Yield |
|---|---|
| With hydrogenchloride; water; sodium chloride; sodium hydroxide pH=9.5; Catalytic behavior; Mechanism; Kinetics; pH-value; Reagent/catalyst; Inert atmosphere; |
...Expand
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3-Amino-5-methylisoxazole
Chemistry
Molecular Formula:C4H6N2O
Molar mass:98.10324g/mol
Structure of 3-Amino-5-methylisoxazole(1072-67-9):
Synonyms of 3-Amino-5-methylisoxazole(1072-67-9):3-Isoxazolamine, 5-methyl-;Isoxazole, 3-amino-5-methyl-;5-Methyl-3-aminoisoxazole;3-Methyl-5-aminoisoxazole;5-methylisoxazol-3-amine;5-Methyl-3-isoxazolamine
Density:1.167 g/cm3
Flash Point:96.5 °C
Boiling Point:235.9 °C at 760 mmHg
Index of Refraction:1.524
Vapour Pressure:0.0487 mmHg at 25°C
Melting point:59-63°C
Solubility:Soluble in alcohol, ether, vapor volatile with water
Water solubility:soluble
Appearance:White crystals
storage temp:Refrigerator
Uses
3-Amino-5-methylisoxazole(1072-67-9) is pharmaceutical intermediates,and can be used for the production of sulfonamide.
Production
3-Amino-5-methylisoxazole(1072-67-9) can be derived from the degradation of 5 - methylisoxazole -3 - carboxamide.
Toxicity Data With Reference
1.Oral, mus: LD50 = 3060-4060 mg/kg (24H) Oral, mus: LD50 = 2409-3271 mg/kg (10D)
2.Carcinogenicity:3-Amino-5-methylisoxazole(1072-67-9)- Not listed as a carcinogen by NTP, IARC,ACGIH, or CA Prop 65.
2.Carcinogenicity:3-Amino-5-methylisoxazole(1072-67-9)- Not listed as a carcinogen by NTP, IARC,ACGIH, or CA Prop 65.
Safety Profile
Hazard Codes:Xi-F,Xi,F,Xn
Risk Statements:
5: Heating may cause an explosion
10: Flammable
11: Highly Flammable
20: Harmful by inhalation
21: Harmful in contact with skin
22: Harmful if swallowed
36: Irritating to the eyes
37: Irritating to the respiratory system
38: Irritating to the skin
Safety Statements:
16: Keep away from sources of ignition - No smoking
22: Do not breathe dust
24: Avoid contact with skin
25: Avoid contact with eyes
26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
36: Wear suitable protective clothing
37: Wear suitable gloves
39: Wear eye/face protection
47: Keep at temperature not exceeding ... E C (to be specified by the manufacturer)
Risk Statements:
5: Heating may cause an explosion
10: Flammable
11: Highly Flammable
20: Harmful by inhalation
21: Harmful in contact with skin
22: Harmful if swallowed
36: Irritating to the eyes
37: Irritating to the respiratory system
38: Irritating to the skin
Safety Statements:
16: Keep away from sources of ignition - No smoking
22: Do not breathe dust
24: Avoid contact with skin
25: Avoid contact with eyes
26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
36: Wear suitable protective clothing
37: Wear suitable gloves
39: Wear eye/face protection
47: Keep at temperature not exceeding ... E C (to be specified by the manufacturer)
Specification
Stability and Reactivity of 3-Amino-5-methylisoxazole(1072-67-9):
Conditions to Avoid:Incompatible materials, temperatures above 65°C, ignition sources,light.
Chemical Stability:Stable under normal pressures and temperatures.
Incompatibilities with Other Materials:Strong oxidizing agents.
Hazardous Decomposition Products: Nitrogen oxides, carbon monoxide, carbon dioxide.
Conditions to Avoid:Incompatible materials, temperatures above 65°C, ignition sources,light.
Chemical Stability:Stable under normal pressures and temperatures.
Incompatibilities with Other Materials:Strong oxidizing agents.
Hazardous Decomposition Products: Nitrogen oxides, carbon monoxide, carbon dioxide.