| Identification | More | [Name]
5-Methyl-4-isoxazolecarboxylic acid | [CAS]
42831-50-5 | [Synonyms]
5-METHYL-4-ISOXASOLECARBOXYLIC ACID
5-METHYL-4-ISOXAZOLECARBOXYLIC ACID
5-METHYLISOXAZOLE-4-CARBOXYLIC ACID
TIMTEC-BB SBB005909
5-Methyl-4-Isooxazolecarboxylic Acid
5-METHYLISOXAZOLE-4-CARBOXYLIC
5-MethylIsoxazole-4-CarboxalicAcid,Leflunomide
4-Isoxazolecarboxylic acid,5-Methyl
5-METHYLISOXAZOLE-4-CARBOXYLIC ACID 98%
5-Methylisoxazole-4-carboxylic acid, 98+% | [EINECS(EC#)]
1312995-182-4 | [Molecular Formula]
C5H5NO3 | [MDL Number]
MFCD00955655 | [Molecular Weight]
127.1 | [MOL File]
42831-50-5.mol |
| Chemical Properties | Back Directory | [Appearance]
Cream to brown Solid | [Melting point ]
144-148 °C(lit.) | [Boiling point ]
308.3±22.0 °C(Predicted) | [density ]
1.348±0.06 g/cm3(Predicted) | [storage temp. ]
Sealed in dry,Room Temperature | [solubility ]
DMSO (Slightly), Methanol (Slightly) | [form ]
Solid | [pka]
2.85±0.25(Predicted) | [color ]
White to Pale Brown | [Usage]
Herbicidal activities towards Digitaria ciliaris | [BRN ]
116000 | [CAS DataBase Reference]
42831-50-5(CAS DataBase Reference) |
| Safety Data | Back Directory | [Hazard Codes ]
Xi,F | [Risk Statements ]
R36/37/38:Irritating to eyes, respiratory system and skin .
R37/38:Irritating to respiratory system and skin .
R36:Irritating to the eyes.
R10:Flammable. | [Safety Statements ]
S22:Do not breathe dust .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S36:Wear suitable protective clothing .
S16:Keep away from sources of ignition-No smoking . | [WGK Germany ]
3
| [Hazard Note ]
Irritant | [HazardClass ]
IRRITANT | [HS Code ]
29349990 |
| Hazard Information | Back Directory | [Chemical Properties]
Cream to brown Solid | [Uses]
5-Methylisoxazole-4-carboxylic Acid (Leflunomide EP Impurity D) is an intermediate for synthesis of Leflunomide (L322750). Herbicidal activities towards Digitaria ciliaris. | [Uses]
An intermediate for synthesis of Leflunomide (L322750). Herbicidal activities towards Digitaria ciliaris | [Flammability and Explosibility]
Nonflammable |
|
|