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5-Methyl-4-isoxazole carboxylic acid

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

Structural Formula
5-Methyl-4-isoxazole carboxylic acid
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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Leflunomide EP Impurity D
Salsbury Chemicals, Inc.
SC24007200
5-Methyl-4-isoxazolecarboxylic acid
Simagchem Corporation
SC22056615
5-Methyl-4-isoxazolecarboxylic acid
Finetech Industry Limited
FIL262510500
5-Methyl-4-isoxazolecarboxylic acid
CM Fine Chemicals
CFC17857140
5-Methyl-4-isoxazolecarboxylic acid
Chemieliva Pharmaceutical Co., Ltd.
CP367511025
5-Methyl-4-isoxazolecarboxylic acid
Leap Chem Co., Ltd
LC18905670
5-Methyl-4-isoxazolecarboxylic acid
Hangzhou J&H Chemical Co., Ltd.
HJC325513020
5-Methyl-4-isoxazolecarboxylic acid
Zhejiang Hongxin Chemical
ZHC262510500
5-Methyl-4-isoxazolecarboxylic acid
Capot Chemical Co., Ltd.
8652
5-Methyl-4-isoxazolecarboxylic acid
Hefei Hirisun Pharmatech Co., Ltd
HR010981
5-Methyl-4-isoxazolecarboxylic acid
Changzhou Hi-Tech Chemistry Corp
HT-C085
5-Methyl-4-isoxazolecarboxylic acid
Xiamen Hisunny Chemical Co., Ltd.
XHC346513860
5-Methyl-4-isoxazolecarboxylic acid
Dayang Chem (Hangzhou) Co.,Ltd.
DC325513020
5-Methyl-4-isoxazolecarboxylic acid
Autech Industry Co.,Limited
AIC283511340
5-Methyl-4-isoxazolecarboxylic acid
Aecochem Corp.
AC14704410
5-Methyl-4-isoxazolecarboxylic acid
FUDI Chemical Co. Ltd.
FCC23109240
5-Methyl-4-isoxazolecarboxylic acid
Xingrui Industry Co., Limited
XIL304512180
5-Methyl-4-isoxazolecarboxylic acid
Gihi Chemicals Co., Limited
GCL283511340
5-Methyl-4-isoxazolecarboxylic acid
H&Z Industry Co.,Ltd
HIC21008400
5-Methyl-4-isoxazolecarboxylic acid
Hangzhou Cherry Pharmaceutical Technology Co., Ltd.
HCPT535526775
5-Methyl-4-isoxazolecarboxylic acid
Xiamen Equation Chemical Co.,Ltd
XECC336016800
5-Methyl-4-isoxazolecarboxylic acid
Amadis Chemical Company Limited
ACCL325516275
5-Methyl-4-isoxazolecarboxylic acid
Chemlyte Solutions
CS18905670
5-Methylisoxazole-4-carboxylic acid
Molekula
12872162
5-Methylisoxazole-4-carboxylic Acid
Santa Cruz Biotechnology, Inc.
207044
5-Methylisoxazole-4-carboxylic acid
Angene International Limited
AGN-PC-0WABJQ
5-methylisoxazole-4-carboxylic acid
Indofine Chemical Co, Inc.
08-1205
5-Methylisoxazole-4-Carboxylic Acid
DSL Chemicals (Shanghai) Co., Ltd.
C005467
5-Methylisoxazole-4-carboxylic Acid
TCI Chemicals (India) Pvt. Ltd.
M1740
5-Methylisoxazole-4-carboxylic acid
AK Scientific, Inc.
AS19955985
5-Methylisoxazole-4-carboxylic acid
Hangzhou MolCore BioPharmatech Co.,Ltd.
CS17770
5-Methylisoxazole-4-carboxylic acid
Hangzhou Trylead Chemical Technology Co., Ltd.
HTCT483024150
5-Methylisoxazole-4-carboxylic acid
Simagchem Corporation
SC22056615
5-Methylisoxazole-4-carboxylic acid
Santa Cruz Biotechnology, Inc.
sc-207044
5-Methylisoxazole-4-carboxylic acid
Carbone Scientific Co., Ltd.
CS29408820
5-Methylisoxazole-4-carboxylic acid
Medibro Corporation Limited
MCL283511340
5-Methylisoxazole-4-carboxylic acid
Haihang Industry Co., Ltd.
HI27308190
5-Methylisoxazole-4-carboxylic acid
Wanko Chemical Co., Ltd.
WC25207560
5-Methylisoxazole-4-carboxylic Acid
Pharmaffiliates Analytics & Synthetics Pvt. Limited
PA 12 08040
5-Methylisoxazole-4-carboxylic acid
Hangzhou Verychem Science & Technology Co., Ltd.
HVST504025200
5-Methylisoxazole-4-carboxylic acid
Ambeed, Inc.
A273491
5-Methylisoxazole-4-carboxylic acid
Manchester Organics Limited
L47023
5-Methylisoxazole-4-carboxylic acid
Key Organics Limited
PS-3713
5-Methylisoxazole-4-carboxylic acid
Hangzhou Proserre Chemical Co., Ltd.
HPC378015120
5-Methylisoxazole-4-carboxylic acid
BLD Pharmatech Ltd
BP18905670
5-Methylisoxazole-4-carboxylic acid, 98+%
Alfa (A Johnson Matthey Company)
A393611808

Prices & Availability




Data is processed


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Properties for 5-Methyl-4-isoxazole carboxylic acid

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-Methyl-4-isoxazole carboxylic acid]

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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