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5-Methylisoxazole-4-carboxylic acid, 98+%

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Formula: C5H5NO3
CAS: 42831-50-5
search Element: methylisoxazole carboxylic acid
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Identification

Structural Formula
5-Methylisoxazole-4-carboxylic acid, 98+%
CAS:
42831-50-5
EINECS:
Molecular Formula:
C5H5NO3
MDL:
MFCD00955655
Synonym:
timtec-bb sbb005909 ; 5-methylisoxazole-4-carboxylic acid ; leflunomide impurity d ; 5-methyl-4-isoxasolecarboxylic acid ; 5-methyl-isoxazol-4-carboxylic acid ; 5-methylisoxazole-4-carboxylic ; methylisoxazole-4-carboxylic ; 4-isoxazolecarboxylic acid,5-methyl ; 5-methyl-4-isoxazolecarboxylic acid ; leflunomide ep impurity d




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Alfa (A Johnson Matthey Company)
A393611808
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Prices & Availability




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Properties for 5-Methylisoxazole-4-carboxylic acid, 98+%

Molecular Weight:
127.1 g·mol−1
Melting point:
144-148 °C(lit.)
Solubility:
Acetone, Acetonitrile, DMSO, Water, Methanol
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Hazard Statements

GHS07

GHS03
Harmful
  • Acute toxicity (oral, dermal, inhalation), category 4
  • Skin irritation, categories 2, 3
  • Eye irritation, category 2A
  • Skin sensitization, category 1
  • Specific target organ toxicity following single exposure, category 3
    - Respiratory tract irritation
    - Narcotic effects
    • Not used
  • with the "skull and crossbones" pictogram
  • for skin or eye irritation if:
  • the "corrosion" pictogram also appears
  • the "health hazard" pictogram is used to indicate respiratory sensitization

Safety & Transport Information

Risk Codes:
R10 - Flammable
R36 - Irritating to eyes
R36/37/38 - Irritating to eyes, respiratory system and skin
R37/38 - Irritating to respiratory system and skin
Safety Codes:
S16 - Keep away from sources of ignition - No smoking
S22 - Do not breathe dust
S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
S36 - Wear suitable protective clothing
S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection
Hazard Classes:
irritant
Hazard Symbols:
Xi, F
Hazard symbol F Hazard symbol Xi
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Alternative Distributors of [5-Methylisoxazole-4-carboxylic acid, 98+%]

Producers or manufacturers change the product range from time to time. The following companies
have appeared as suppliers in the past / currently not verified

Chembay Co., Ltd. | Molekula GmbH | 3B Scientific Corporation | Hangzhou Think Chemical Co., Ltd. | Hongda Group Limited | Shanghai PI Chemicals Ltd. | Changzhou Sinly Pharmchem Co., Ltd. | TCI Europe NV | Matrix Scientific | Ubichem PLC | Suzhou Rovathin Pharmatech Co., Ltd | Ark Pharm, Inc. | Bepharm Ltd. | Shanghai Hanhong Chemical Co., Ltd. | AOKBIO Co., Ltd. | Jinan Great Chemical Co., Ltd. | 3Way Pharm Inc. | ShangHai Top Descendants Bioscience Co., Ltd | Watson International Ltd | Suzhou Vosun Chemical Co.,Ltd. | Skyrun Industrial Co., Ltd. | Xiamen Hisunny Chemical Co., Ltd.

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